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Last Updated on July 21, 2021

How to Think Critically: 5 Powerful Techniques

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How to Think Critically: 5 Powerful Techniques

Critical thinking is the art of filtering through information to reach an unbiased, logical decision that guides better thought and action. It can be learned through powerful techniques listed in this article.

Before you read further, it is important for you to know that critical thinking is a state of mind, not a tool or strategy.

If you are bogged down in the trivial day to day matters of your professional and personal life, learning how to think critically can help you rise above these issues and focus your energies where they are needed – to solve problems and accomplish objectives.

It stands to reason that the better the learning techniques, the better critical thinking and reasoning will be. My experience in helping people grow means I know exactly what is needed to learn critical thinking (hint: it’s not just pondering over the problem).

I will cover 5 powerful techniques that form the base of critical thinking:

  1. Analytical thinking
  2. Communication
  3. Creativity
  4. Open-mindedness
  5. Problem-solving

Once you learn the techniques listed and start employing them in your daily life, you’ll quickly start to notice a change in the way you approach problems and consequently, how you resolve them too.

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1. Analytical Thinking

Analytical thinking is the gathering and breaking down of information into small bites that help make sense of it.

To use it for critical thinking:

  • Be very clear on why you need the information. This is to recognize your limitations and employ foresight to overcome them.
  • Gather information from as many sources as you can: peers and experts, podcasts, relevant literature and any other place you can think of.
  • Rephrase questions multiple times to get different perspectives on data available and possibly arrive at different solutions.
  • Break down the data into factual subsets and relate each to the issue at hand.
  • Think on paper to make new connections. Write, doodle, make mind-maps or use spreadsheets. Data presented visually can help you make new connections make sense of emerging patterns.
  • Tidy up the workplace. Once data has been gathered, your workspace and your brain will both be cluttered with excess information. Neaten the physical space and clear your mind with meditation. The change in focus will help you view the information in a new light, potentially helping you reach newer, better conclusions.

Want more information and tips on adopting this powerful technique? What Are Analytical Skills and How to Strengthen Them For Success has all the information you need.

2. Communication

Communication is a key technique for critical thinking as it gives you access to the thoughts of people around you.

Data can be communicated through audio and visual means and in many cases, through careful observation of body language:

  • Ask for different points of view and seek justification for the same thing. When you invest in the matter, you will be able to explore all options to reach the best solution.
  • Listening without interrupting and only asking questions or voicing concerns once the speaker is done helps you make better connections.
  • Be 100% focused on a verbal or written discussion, you can better hear/read the opinions of the people involved.
  • Paraphrase the speaker/writer’s point of view and ask for affirmation. This enables you to pay full attention and use the input to think critically.
  • In a meeting, subtle communication cues are given by the body language of fellow attendees. An imperceptible frown, a small nod, pencil tapping etc. will all give you clues to what they are really thinking, just in case their actions are not in sync with their words!
  • Active observation, where you are watching and listening intently helps you know what to make of the information that is being passed around. It gives you clues to the general opinion about the topic under discussion and opens up new possibilities.

The information you gather through such communication will be invaluable in thinking critically to arrive at a decision that is holistic and unbiased.

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3. Creativity

Critical thinking is an art, and like any art form, its lifeblood is creativity. To really learn critical thinking, you need to include elements of creativity in the process!

  • Brainstorm with your team in an all-new location or work-shadow an industry expert to step out of your comfort zone. You could be surprised by the ideas that flow at a picnic or a game of billiards!
  • Gather data and tabulate it in the form of colorful, eye-catching charts, graphs and mind maps. The simple exercise makes your mind bring data together in different ways and presents them so multiple unique conclusions can be reached, giving you the flexibility to choose the best one.
  • Play brain games such as Sudoku or chess to appreciate how different factors can be manipulated to reach a preferred outcome. These games help make connections between previously disconnected nerves, giving your brain the power to find multiple pathways to answering problems.
  • In a similar vein, you can forge new neural connections by learning a new skill, a new language or even a new recipe!

I break down creativity in my other article What is Creativity? We All Have It, and Need It. If you want to be good at critical thinking, you need to adopt creativity!

4. Open-Mindedness

It’s easy to say you’re open minded but is your mind really open?

To get an idea,

  • Be brutally honest about your strengths and weaknesses, and how these will impact the matter at hand.
  • Hear an opinion that conflicts with your own without forming a response before the opinion is fully voiced.
  • Acknowledge that there may be more than one approach to solving a problem and that they may all be right in some way.
  • Consider your true feelings when you will implement any required changes.
  • Disregard your long-held beliefs and assumptions and let go of habits.
  • Imagine the decision-making factors placed on weighing scales. Are they balanced?

Open-mindedness is a powerful technique for critical thinking. New possibilities can be uncovered, helping you resolve personal and professional matters in a manner that doesn’t frustrate you or alienate the other party.

Learn more about open-mindedness here: Why We’re Not Open-Minded and How Not to Be Close-Minded

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5. Problem-Solving

Critical thinking is heavily dependent on problem-solving. An effective critical thinker will be a problem solver with the foresight to anticipate roadblocks and negative outcomes, and the experience and presence of mind to resolve them quickly and move on.

One of the most effective problem-solving methodologies is the 5 Whys Analysis. Invented by Sakichi Toyoda, the founder of Toyota Motors in the 1950s, it has been used successfully by the automobile giant to get to the root cause of problems.

The idea behind this is simple: start with the end problem and keep asking why until you get to the root cause of it.

The general idea is that asking why 5 times from the effect is enough to get to the cause, hence the name. However, the methodology does not limit the questions to 5, and why can be asked as many times as need to peel away the layers until a satisfactory answer is reached.

To use the 5 Whys Analysis, start off by listing the problem and writing why in front of it. The next point in the list should be answer to the first why with another why in front of it. Continue answering the question asked above followed by a why until you’ve asked the question 5 times and answered it six times. 99% of the time, the last answer will be the root cause of the problem stated in the first point.

For example, consider the a commonly given scenario where a vehicle does not start.

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  1. Vehicle will not start. Why?
  2. Battery is dead. Why?
  3. The alternator is not functioning. Why?
  4. The alternator belt has broken. Why?
  5. It was old and worn out. Why?
  6. The car is not maintained according to manufacturer’s recommendation.

By this example, it is clearly demonstrated that 5 whys were asked to reach the root cause of the problem.

The 5 techniques discussed here are important for effective critical thinking. When employed regularly they will become a habit and will definitely improve your critical thinking skills so you can get better at predicting and resolving issues that concern you and your environment.

Over the years, the 5 Whys Analysis has been adopted by millions to reach the root cause of their personal and professional problems. Industry giant Six Sigma has also incorporated the 5x Why Analysis in the Analyze phase of their DMAIC methodology.[1]

Final Thoughts

Is critical thinking a new-fangled notion? Not at all. Its history can be traced back to Socrates who questioned commonly held beliefs. This practice was carried forward by leading scholars and thinkers from different times such as Aristotle and Plato, Colet and Moore, Descartes, Galileo and Newton.[2]

Today’s world is dependent on critical thinking to resolve all sorts of issues. It is now indispensable for issues ranging from personal relationships to professional jobs and those involving the global community.

The 5 techniques discussed here are important for effective critical thinking. When employed regularly, they will become a habit and will definitely improve your critical thinking skills so you can get better at predicting and resolving issues that concern you and your environment.

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More Tips About Thinking Smarter

Featured photo credit: Mariya Pampova via unsplash.com

Reference

More by this author

Leon Ho

Founder & CEO of Lifehack

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Published on August 9, 2021

12 Best Brain Foods To Help You Focus Like A Laser

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12 Best Brain Foods To Help You Focus Like A Laser

Do you ever feel like your brain can function better than it is currently? Have you ever had moments of laser sharp focus and wished they stayed with you forever?

We have all had those moments where we found ourselves being super productive and having lengthened periods of concentration and focused attention, and if there was a way we could make such kind of mental state a permanent state for us, we would definitely go for it.

And while we cannot make the state come back and stick with us forever in just an instant, there is a way we can slowly cultivate it in our lives in the long term.

One of these ways is by being keen on eating brain boosting foods. Some foods enhance the regions of the brain that are linked to concentration, focus, reasoning, thinking abilities, and overall brain health. By eating these foods regularly, you can also improve your brain function and slowly work to a healthy and well performing brain.

Let’s take a closer look at the 12 best brain foods to take to boost your focus and overall mental health.

1. Coffee

Coffee is among the most popular beverages that sharpen your focus and increase productivity. Millions of people across the world rely on it to help them through demanding tasks at work and assignments at school.

The reason why coffee has proven to be effective over the years is due to the two components in it that largely enhance the brain.

These components are antioxidants and caffeine.

Antioxidants help with protecting the brain from common mental health conditions such as stroke, Parkinson’s disease, cognitive decline and Alzheimer’s disease.[1][2]

Caffeine, on the other hand, is responsible for influencing the brain in various positive ways including blocking out a brain chemical called Adenosine that makes you want to sleep and increasing the levels of serotonin neurotransmitters which in turn boosts your mood, increase your level of alertness and concentration.[3][4][5][6]

However, it is important to note that taking coffee with moderation is the way to make the most of it. If you take more than 4 cups a day, you might be setting yourself up for the nasty side effects that come with it which are restlessness and inability to sleep.[7]

Striking a good balance between coffee and other beverages will help you avoid the chances of experiencing the side effects. You can try drinking coffee only on those days you want to tackle tedious tasks, and only when you are working on them to maximize its effects in your life.

2. Fatty Fish

When the words fatty fish are mentioned, you naturally direct your attention to salmon, pollack, cod, sardines, mackerel and tuna.

These contain omega 3 fatty acids, which are known to help with improving learning abilities and memory, not to mention helping with building nerve and brain cells.[8][9][10][11]

Improved cognitive performance brought about by omega 3 fatty acids can be attributed to the fact that they help increase flow of blood in the brain. [12]

Also, when it comes to general mental health, eating oily or fatty fish helps to delay the mental decline that comes with age, as well as depression and reduce learning problems. [13] [14]

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Omega 3 has also been associated with the lowering of the protein called Beta-amyloid in the brain that is responsible for forming destructive clamps in people who struggle with Alzheimer’s.[15]

You are encouraged to add fatty fish to your eating plan and consider having it often.

Also, if you would like to obtain omega 3 fatty acids without having to feel like you have to eat fish every time, you can use other alternatives such as walnuts, flaxseeds and avocados. They are also good sources of omega 3.

3. Maca

Maca is a plant from Peru that is grown in Central Andes and has been cultivated a little over 2000 years now. Its scientific name is Lepidium meyenii and is used as a foodstuff as well as a medicinal plant.

It is said to bring about many health benefits including boosting learning abilities and memory, improving mood, increasing energy levels and endurance, improving sexual health in men, and regulating blood pressure.[16]

When it comes to the mental health benefits, Peruvian natives in the Central Andes attribute their children’s good academic performance to regular use of maca.[17]

While there are different varieties of maca, studies have found that the black variety is the one that shows strong effects on mental health improvement, and both hydroalcoholic maca extract and boiled aqueous maca extract have the same effect on the brain.[18]

Scientific studies on maca are still in their infancy and the cause of the effects that it has shown are not yet fully established. However, it is suggested that Macamides, which are maca compounds, might be behind its potency.[19]

You can add maca to your smoothies, energy bars, oatmeal, and any baked foods to enjoy its benefits.

4. Green Tea

Green tea is another known stimulant that helps you remain alert. It contains two compounds that go a long way in influencing the brain.[20]

First, it contains caffeine which accounts for the alertness.

Although coffee contains a much higher quantity of caffeine than green tea, the latter is found suitable to use for those who prefer a well toned effect of caffeine.

Caffeine helps with regulating neurotransmitters like norepinephrine, dopamine and adenosine, as earlier mentioned, that helps with keeping you awake and in good balance in terms of moods and brain function.[21][22]

Second, it contains. L-theanine.

L-theanine is an amino acid that can cross the blood-brain barrier and into the brain which then promotes increase in GABA (Gamma aminobutyric acid) which promotes relaxation.[23][24][25]

It also increases the alpha waves in the brain which are responsible for the calm, conscious and relaxed mental state.

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When L-theanine and caffeine are combined, they both have a much powerful effect, and this explains why taking green tea for many people has been found more rewarding than coffee.

L-theanine has also been linked to other mental health benefits such as improving memory and protection from mental illnesses like Parkinson’s and Alzheimer’s.[26][27]

Taking green tea in the morning and just before going for a physical exercise helps.

5. Green Leafy Vegetables

Greens are packed with nutrients that enhance the brain in great ways. Broccoli, Swiss chards, kales, dandelion greens, collards and spinach are among the vegetables that have high nutritional value that make them useful for brain health.

Broccoli, for instance, has antioxidants and Vitamin K, among other plant compounds that contribute to better memory, anti-inflammatory effects and brain protection benefits.[28][29][30]

Kale is heavily packed with nutrients like Vitamin A, B6, C, K, potassium, manganese, copper and calcium that promote brain development, slowing cognitive decline caused by age, depression and even various health conditions like Alzheimer’s.[31][32][33][34]

Generally, leafy vegetables contain a variety of nutrients including vitamins, minerals and antioxidants that elevate various regions of the brain that are associated with memory, alertness, processing of information and overall brain health.

Working with delicious green smoothies and recipes that use a lot of greens will largely contribute to a better functioning brain.

6. Dark Chocolate

Other than the sweet taste, dark chocolate also boosts your brain.

It contains three compounds that make this possible, which are, caffeine, antioxidants and flavonoids.

Since we have already seen that caffeine offers the stimulating effects that keep you alert and antioxidants help with keeping mental illnesses and cognitive decline at bay, let’s take a closer look at flavonoids.

Flavonoids are micronutrients that reduce neuroinflammation, protect neurons from neurotoxin-based injury and are potentially effective in enhancing learning, cognitive performance and memory.[35][36] [37]

Studies have also revealed that dark chocolate brings about a positive feeling.[38]

Dark chocolate contains cacao, which is often referred to as cocoa. Aiming to eat dark chocolate that carries more than 70% cocoa ensures that you get optimal benefits from it.

7. Nuts

Nuts such as walnuts, cashew nuts, hazelnuts, pecans, to name a few, contain several brain improving nutrients.

They come with the popular antioxidant, Vitamin E, that protects the brain cells and cell membranes from oxidative stress and damage by free radicals.[39][40][41]

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Long term consumption of nuts has contributed to a sharper memory, better academic performance and lower risks of getting mental illnesses too.[42][43]

They have also shown abilities to improve the factors that account for good heart and brain health.

All nuts have their nutritional benefits but you are encouraged to eat walnuts more as they have a much higher value due to the presence of high levels of alpha-linolenic acid, which is a type of omega 3 fatty acid.

8. Avocado

Avocado is surprisingly a berry, and it is referred to as a big berry.

Although it hasn’t been fully studied yet, it is believed to carry vitamins B5, B6, C, E and K. Also, it comes with folate and potassium.

There are also low amounts of other nutrients including copper, phosphorus, magnesium, zinc, manganese, and iron that are present in it.

Moreover, it contains a monounsaturated fatty acid called Oleic acid, which is part of what makes olive oil good to use. This fatty acid is known to have many benefits, some of which are lowering inflammation, and brain development.[44]

Adding it to your recipes or making smoothies, and regularly eating it together with your favorite fruits will help you take advantage of its nutritional value.

9. Eggs

There are 4 micronutrients in eggs that give the brain an extra edge, folate, choline, vitamin B6 and B12.

Folate helps to slow down the mental decline that comes with age.[45]

Choline is used by the body to increases the levels of a neurotransmitter known as Acetylcholine that is associated with memory, mental function and moods.[46][47][48]

The yolk of an egg is where the choline micronutrient is in high quantities, and people who desire to increase their choline levels in the body are encouraged to focus on that part.

Vitamin B6 brings down the high levels of an amino acid called Homocysteine in the blood that causes depression and other psychiatric issues.

It also plays the role of increasing the levels of neurotransmitters like GABA (Gamma-aminobutyric acid), serotonin and dopamine, which modulate emotions.

Vitamin B12 also helps with reducing the symptoms of depression as well as preventing losing neurons that in turn cause poor memory.[49]

10. Citrus Fruits

Citrus fruits are categorized into lemons (which include meyer lemons and eureka lemons), sweet oranges (which include blood orange, Valencia, cara cara and navel), limes (which include kaffir, Persian and key lime), mandarin (which include tangelo, tangor, satsuma and clementine), grapefruit (which include ruby red, white and oroblanco) and others such as yuzu, sudachi, citron and pomelos.

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They have the B vitamins as well as Vitamin C, copper, phosphorus, potassium, and magnesium. There are also lots of varieties of carotenoids, essential oils and flavonoids present in citrus fruits.

On top of that, they are also known to possess antioxidating and anti-inflammatory effects.

Vitamin C reduces inflammation, offers protection to neurons from oxidative stress, modulates neurotransmission (communication between neurons), and also influences neuronal development.[50]

Some of the minerals in citrus fruits have been found to reduce symptoms of depression in women.[51]

They have also been associated with influencing communication through the nerves and regulating neurotransmitters.[52]

The flavanoids protect the nervous system from damage through the anti-inflammatory effects they have. And this helps to keep mental health conditions like Parkinson’s and Alzheimer’s away.[53][54]

11. Turmeric

Turmeric is a spice we add to our foods to make it delicious that also does a bit of magic to our brains.

Curcumin is a primary active component in turmeric that easily passes the blood brain barrier.

It brings about anti-inflammatory and antioxidant effects that drag along the benefits of improved memory, promoting growth of new brain cells and managing moods.[55][56]

Also, it has shown potential to handle Alzheimer’s diseases, although it has not been fully confirmed as reliable treatment.[57][58]

12. Beetroots

Beetroots which are commonly referred to as beets are also great brain enhancers.

They can help prevent mental decline that is associated with poor blood flow to the brain. They have nitrates that encourage blood vessel dilation that then allow more blood and oxygen to flow to the brain, and thus enhance its functions.[59]

More specifically, they improve flow of blood to a part of the brain known as the frontal lobe.

This is a region that is linked to higher cognitive functions including concentration and attention, problem solving, reasoning and judgment, motor function, impulse control, memory, social interaction and emotions.

Conclusion

There you go, the best brain foods that you should make your closest friends.

You should aim to have them often if you would like to see an improvement in your brain function in the coming months. Looking for recipes that use the foods mentioned above as ingredients and adding them to your recipe book is a good place to start.

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Also, mixing them up with the foods you like eating goes a long way in not only making sure that you are minding your brain health but also enjoying what you eat in the process.

Featured photo credit: Maddi Bazzocco via unsplash.com

Reference

[1] PubMed.gov: Effects of coffee/caffeine on brain health and disease: What should I tell my patients?
[2] US National Library of Medicine: Neuroprotective and Anti-inflammatory Properties of a Coffee Component in the MPTP Model of Parkinson’s Disease
[3] PubMed.gov: Effects of caffeine on mood and performance: a study of realistic consumption
[4] PubMed.gov: Caffeine and adenosine
[5] PubMed.gov: The role of adenosine in the regulation of sleep
[6] PubMed.gov: Roles of adenosine and its receptors in sleep-wake regulation
[7] US National Library of Medicine: The Safety of Ingested Caffeine: A Comprehensive Review
[8] National Center For Complimentary And Integrative Health: Omega-3 Supplements: In Depth
[9] PubMed.gov: Omega-3 Fatty Acids and their Role in Central Nervous System – A Review
[10] National Library of Medicine: A meta-analytic review of double-blind, placebo-controlled trials of antidepressant efficacy of omega-3 fatty acids
[11] PubMed.gov: Novel insights into the effect of vitamin B₁₂ and omega-3 fatty acids on brain function
[12] PubMed.gov: Quantitative Erythrocyte Omega-3 EPA Plus DHA Levels are Related to Higher Regional Cerebral Blood Flow on Brain SPECT
[13] PubMed.gov: Omega-3 fatty acids and dementia
[14] PubMed.gov: Fish consumption and cognitive decline with age in a large community study
[15] Harvard Medical School: Foods linked to better brainpower
[16] US National Library of Medicine: Acceptability, Safety, and Efficacy of Oral Administration of Extracts of Black or Red Maca (Lepidium meyenii) in Adult Human Subjects: A Randomized, Double-Blind, Placebo-Controlled Study
[17] PubMed.gov: Ethnobiology and Ethnopharmacology of Lepidium meyenii (Maca), a Plant from the Peruvian Highlands
[18] PubMed.gov: Effect of three different cultivars of Lepidium meyenii (Maca) on learning and depression in ovariectomized mice
[19] US National Library of Medicine: Ethnobiology and Ethnopharmacology of Lepidium meyenii (Maca), a Plant from the Peruvian Highlands
[20] PubMed.gov: Effect of Green Tea Phytochemicals on Mood and Cognition
[21] Wiley Online Library: Adenosine, Adenosine Receptors and the Actions of Caffeine
[22] PubMed.gov: Caffeine and the central nervous system: mechanisms of action, biochemical, metabolic and psychostimulant effects
[23] PubMed.gov: The neuropharmacology of L-theanine(N-ethyl-L-glutamine): a possible neuroprotective and cognitive enhancing agent
[24] ScienceDirect: L-theanine—a unique amino acid of green tea and its relaxation effect in humans
[25] PubMed.gov: L-theanine, a natural constituent in tea, and its effect on mental state
[26] PubMed.gov: Green tea extract enhances parieto-frontal connectivity during working memory processing
[27] PubMed.gov: Neurological mechanisms of green tea polyphenols in Alzheimer’s and Parkinson’s diseases
[28] PubMed.gov: Vitamin K status and cognitive function in healthy older adults
[29] Increased dietary vitamin K intake is associated with less severe subjective memory complaint among older adults
[30] US National Library of Medicine: Assessing Competence of Broccoli Consumption on Inflammatory and Antioxidant Pathways in Restraint-Induced Models: Estimation in Rat Hippocampus and Prefrontal Cortex
[31] ScienceDaily: B vitamins and the aging brain examined
[32] PubMed.gov: The Importance of Maternal Folate Status for Brain Development and Function of Offspring
[33] PubMed.gov: Treatment of depression: time to consider folic acid and vitamin B12
[34] PNAS: Preventing Alzheimer’s disease-related gray matter atrophy by B-vitamin treatment
[35] US National Library of Medicine: Flavonoids and brain health: multiple effects underpinned by common mechanisms
[36] Harvard Medical School: The thinking on flavonoids
[37] PubMed.gov: Epicatechin, a component of dark chocolate, enhances memory formation if applied during the memory consolidation period
[38] PubMed.gov: The sweet life: The effect of mindful chocolate consumption on mood
[39] PubMed.gov: Effects of vitamin E on cognitive performance during ageing and in Alzheimer’s disease
[40] PubMed.gov: The effect of adrenaline and of alpha- and beta-adrenergic blocking agents on ATP concentration and on incorporation of 32Pi into ATP in rat fat cells
[41] PubMed.gov: Vitamin E-gene interactions in aging and inflammatory age-related diseases: implications for treatment. A systematic review
[42] US National Library of Medicine: LONG-TERM INTAKE OF NUTS IN RELATION TO COGNITIVE FUNCTION IN OLDER WOMEN
[43] PubMed.gov: Cognition: the new frontier for nuts and berries
[44] US National Library of Medicine: Neuroprotective effects of oleic acid in rodent models of cerebral ischaemia
[45] US National Library of Medicine: Brain foods: the effects of nutrients on brain function
[46] PubMed.gov: Choline: an essential nutrient for public health
[47] Pubmed.govThe relation of dietary choline to cognitive performance and white-matter hyperintensity in the Framingham Offspring Cohort
[48] NCBI: Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline
[49] PubMed.gov: Vitamin B-12 concentration, memory performance, and hippocampal structure in patients with mild cognitive impairment
[50] PubMed.gov: Preventive and Therapeutic Potential of Vitamin C in Mental Disorders
[51] NCBI: Association between Lower Intake of Minerals and Depressive Symptoms among Elderly Japanese Women but Not Men: Findings from Shika Study
[52] Harvard Medical School: Precious metals and other important minerals for health
[53] PubMed.gov: Role of Quercetin Benefits in Neurodegeneration
[54] PubMed.gov: Neurodegenerative Diseases: Might Citrus Flavonoids Play a Protective Role?
[55] PubMed.gov: Efficacy and safety of curcumin in major depressive disorder: a randomized controlled trial
[56] PLOS ONE: Curcumin Enhances Neurogenesis and Cognition in Aged Rats: Implications for Transcriptional Interactions Related to Growth and Synaptic Plasticity
[57] US National Library of Medicine: The effect of curcumin (turmeric) on Alzheimer’s disease: An overview
[58] NCBI: The effect of curcumin (turmeric) on Alzheimer’s disease: An overview
[59] NCBI: The Potential Benefits of Red Beetroot Supplementation in Health and Disease

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