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15 Surprising and Science-Backed Health Effects of Dark Chocolate

15 Surprising and Science-Backed Health Effects of Dark Chocolate

You have probably heard others talk about the benefits of eating foods packed with nutrients and antioxidants as a way to promote overall health. I would be willing to bet that chocolate, and more specifically dark chocolate, has come up in these conversations. While it seems almost too good to be true, the health benefits to eating a moderate amount of dark chocolate are backed by science. So rest assured, this is one instance where you can have your cake (or in this case, dark chocolate) and eat it too.

1. For centuries, dark chocolate has been long been associated with health benefits

Incas referred to a beverage made from cocoa as “the drink of the gods”, which eventually gave rise to its scientific name Theobroma cacoa, derived from the Greek words theo (god) and broma (drink). Aztec Emperor Montezuma stated that cocoa “builds up resistance and fights fatigue” and can “permit a man to walk for a whole day without food”.

2. Dark chocolate is rich in a class of phytonutrients called flavonoids

Flavonoids are one of the most common and largest groups of phytonutrients found in the diet. These phytonutrients are chemicals found in plants that promote health To date more than 4,000 varieties have been identified. Dark chocolate and cocoa contain specific flavonoids called flavan-3-ols (or flavanols).

3. Dark chocolate is chock(olate) full of other nutrients

A small bar of 70-85% dark chocolate, let’s say 50 grams/1.75 ounces, contains

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  • nearly 6 grams of fiber for digestive health
  • a third of your recommended daily allowance (RDA) for iron to promote cardiovascular fitness
  • over a quarter of your RDA for magnesium for skeletal health
  • nearly 50% of your RDA for copper and manganese, important for antioxidant functions

It is also important to note, that a serving of dark chocolate contains 300 calories, so it is best to consume dark chocolate in moderation. And don’t worry! You can still get these healthy effects from smaller servings; just try to make sure you are eating dark chocolate that 70-90% cocoa.

4. Flavan-3-ols/flavonols in dark chocolate lower blood pressure

Research has shown that after consumption of dark chocolate, antioxidant capacity in blood increased, which led to the opening of blood vessels and decreased blood pressure.

5. Dark chocolate decreases “bad” cholesterol and increases “good” cholesterol levels

You may have heard LDL, HDL, or VLDL. But what does this alphabet soup mean to your cholesterol and overall health? Briefly, cholesterol is made up low-density lipoprotein (LDL), high-density lipoprotein (HDL) and very low-density lipoprotein (VLDL). LDL is considered the “bad” cholesterol that can build up on the walls of arteries, while “HDL” is called the good cholesterol, which can block LDL from building up on arteries. A variety of studies have shown that both dark chocolate and cocoa powder reduced LDL and oxidized LDL levels and increased HDL levels.

6. Dark chocolate reduces platelet aggregation

Platelets are components found in blood cells that help to form clots. While clots are critical in stopping excessive bleeding, hyperactive platelets can contribute to coronary heart disease. A study investigating the effects of white, milk, or dark chocolate showed that dark chocolate inhibited platelet accumulation, while white and milk chocolate had no effect on platelet clustering.

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7. Risk for cardiovascular disease is slashed by dark chocolate

Points #4-6 may be all well and good, but does dark chocolate broadly impact hearth health? Turns out, it does. A study researching the long-term diet habits in nearly 500 elderly men revealed that cocoa intake was inversely correlated with cardiovascular disease and mortality rates that were assessed 15 years after the study began. Another epidemiological study in the US general population demonstrated that consumption of chocolate was inversely related to coronary heart disease and that eating chocolate 5 times per week lowered the coronary heart disease risk by 57%. So go ahead and enjoy a daily piece of dark chocolate.

8. Moderate dark chocolate consumption lowers the risk for stroke

What about stroke? An analysis of five different studies demonstrated a nearly 20% stroke risk reduction when comparing those defined as high consumers (~ 62.9 grams/week or a tenth of a pound for our non-metric friends out there) to those defined as low consumers of dark chocolate (~ 0 grams/week).

9. Insulin blood sugar spikes are reduced by dark chocolate

Unfortunately, diabetes is a growing concern in the United States, so wouldn’t it be great if dark chocolate could mitigate rates of diabetes? An analysis over 40 clinical trials, including nearly 1300 participants, found that nutritional interventions with cocoa or chocolate significantly reduced fasting insulin concentrations and insulin resistance, endpoints which are used to assess risk for the development of diabetes and cardiovascular disease. Again, moderation is key here and the distinction between cocoa/dark chocolate and milk/white chocolate is critical since milk/white chocolate have lower levels of healthful components.

10. Flavanols stimulate blood flow to the brain

A 450 milligram dose (about 1/6 of a teaspoon) of cocoa flavanols increased cerebral blood flow to gray matter in the brain. Additionally, a five day regimen of 150 milligrams of cocoa flavanols increased blood oxygenation levels. But does blood flow translate into smarts? I’m so glad you asked, see the next point.

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11. Increasing intake of cocoa can improve cognitive function

A study in 90 elderly participants investigated the effects of a high (~990 milligrams), intermediate (~520 milligrams), or low (~45 milligrams) cocoa flavanol doses. Researchers found that participants on the high flavanol track were able to complete cognitive tests much faster and scored better on verbal fluency test scores in comparison to those assigned to low flavanol supplementation. So you are telling me that dark chocolate could make me smarter? Sweet.

12. Dark chocolate reduces stress

This list just gets better and better. Personally, I feel like a weight has been lifted off my chest and this next point only helps this feeling. Preliminary studies demonstrate that dark chocolate consumption reduced excretion of cortisol and catecholamines, hormones involved in the body’s stress response. Additionally, other researchers have shown that consumption of dark chocolate buffered stress responses and reduced levels of perceived stress as assessed through a stress questionnaire. Now it makes even more sense to keep a bar of dark chocolate at work.

13. Dark chocolate boosts energy

I am always looking for an alternative pick me up to my traditional afternoon cup of coffee. Dark chocolate contains a small amount of caffeine to help give you a boost during the mid-afternoon slump.

14. Flavanols from dark chocolate can protect the skin

Just in time for summer! Consumption of flavanol rich chocolate protects against UV rays by increasing the minimum amount of UV rays required to cause skin redness. Moreover, flavanols from cocoa improve blood flow to the skin and increases skin hydration and thickness.

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15. Dark chocolate can improve teeth health

Sparkle up that smile. Dark chocolate is rich in the antioxidant theobromine, which has been shown to protect the enamel surfaces of teeth. Additionally, this potent antioxidant is better than fluoride at remineralizing and hardening tooth enamel. Knowing these facts only makes me smile more.

As you can see, the health effects of dark chocolate are supported by science and exhibit how dark chocolate and cocoa broadly promote health. Even though I am a dark chocolate lover already, reading over this list has only further convinced me to pick up another bar the next time I am grocery shopping to enjoy this treat (in moderation)!

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Last Updated on February 11, 2021

The 20 Most Creative Instagram Accounts That Will Inspire You

The 20 Most Creative Instagram Accounts That Will Inspire You

Instagram allows you to see exactly what inspires people and how creativity is drawn from their everyday life. We use Instagram to capture what makes us smile, what brings joy to our life, and what we are passionate about, and the accounts listed below are sure to inspire you in turn.

Here are our 20 top creative Instagram accounts that you should be following today.

1. Humans Of New York

Brandon Stanton walks the streets of New York City taking street photography, and he gets his subjects to open up about life details that even many family members may not know about them. It makes you smile and connect with the images at a new level.

 2.  Paris in Four Months

Carin Olsson moved to Paris and is documenting every part of her experience, from the macaroons to the Eiffel Tower with all of its shimmering lights. If you want to go to Paris but can’t get there today, Carin will take you.

3. Civilized Caveman Cooking

George Bryant offers up more than his love for cooking Paleo cuisine as he shares more about life, joy, and happiness. His coined hashtag is #hugsandbacon.

4. Andrew Knapp

Andrew has taken the world by storm with his adorable version of Where’s Waldo? His version is Find Momo, and stars his border collie.

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5. Idafrosk

Ida Skivenes has developed a knack for food art. From the world of Charlie and the Chocolate Factory to Strawberry Fields Forever, she has recreated it all with food.

6. GrandmaBetty33

Grandma Betty is fighting cancer and is inspiring others to smile and be happy in life. She brings a smile to your face instantly and is like having your grandma right beside you.

7. Maya_on_the_Move

Tania Ahsan captures the world of her cute bulldog, Maya, on her adventures in New York. Maya makes appearances that will make you smile, laugh, and inspire you to go out and create something special.

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8. Leoleoparis

Leo captures the life on the streets of Paris. Most of his work is done in black and white, offering that iconic Parisian look.

9. Jacob Santiago

Jacob Santiago creates stunning, vibrant images around New York City, showcasing the architecture and streets. I’m sure you haven’t seen the streets of NYC like this before.

10. Julie’s Kitchen

Julie Lee showcases how everyday produce can create colorful art designs. At first glance, you think it is just a design; then, a second take illustrates that it is really fruits and vegetables.

11. iloveplaymo

iloveplaymo brings together photography and Playmobil toys in action. The images are up to date with current world events and everyday life.

12. “Red” Hong Yi

Red Hong Yi loves to paint without a paintbrush. Her style uses daily items to create lovely images.

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13. Alexis Diaz

A breathtaking artist from Puerto Rico who loves to paint murals. Alexis’s work is featured all over the world.

14. Murad Osmann

Murad Osmann is a music video producer, but his claim to fame on Instagram has been his photographs with his girlfriend leading him by her hand.

15. Simone Bramate

Simone Bramate is a storyteller who just so happens to take delightful photos as well.

16. Willie Kessel

Willie Kessel brings beach life right to your smartphone. Amazing surf and lifestyle images that take your mind off of all of the work and stress in your life.

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17. Nick Ulivieri

Nick Ulivieri is a talented photographer who loves to capture the windy city of Chicago and skies, especially during storms. His images are gorgeous and make you realize how wonderful life really is.

18. Jo Jerry

Jo Jerry’s landscape photos around Santorini, Greece, make you want to book a flight immediately. The bright colors and simplicity in the images make his photos stand out from the rest.

19. GoPro

GoPro uses fan-sourced images on their account that are all captured with a GoPro. Creativity to the max is used in these images and range from the grocery store to incredible surf.

20. Vin Farrell

Vin Farrell is a creative who works on the agency side for large clients and has a knack for photography. His iPhone captures amazing aerial images around NYC and the world.

Featured photo credit: Andy via flickr.com

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