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If You Smell Funky Asparagus Pee, You Have This Special Gene

If You Smell Funky Asparagus Pee, You Have This Special Gene

Have you ever eaten asparagus and noticed how it changes the way your pee smells? You may have heard about the phenomenon but wonder why it seems to affect some people and not others.

Many researchers agree that the smell of asparagus pee results from the metabolism of a compound found exclusively in asparagus known as asparagusic acid. The compound is broken down into sulfur-containing compounds such as methanethiol, dimethyl sulfide, and dimethyl sulfoxide –which are responsible for the most prominent odor detected in asparagus pee. All of the above components can easily vaporize into a gaseous state at room temperature [1] –which brings them to your nose.

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Why can’t some people smell it?

The whole asparagus pee smell issue is a little complicated. Various theories attempt to explain why only some people can detect the odor in their pee after eating asparagus. Some researchers suggest that people who don’t detect the asparagus smell in their pee do not have the ability to produce the scent; others argue that everybody breaks down the asparagusic acid in the asparagus equally, only that some people simply lack the ability to detect the smell.

M Lison and other researchers [2]carried out a study to explore this phenomenon back in 1980 and discovered that actually everyone produces this “asparagus smell” but only a few people were able to smell it. The study also revealed that people who were able to detect the smell could even smell it in the urine of those who could not smell it. This reinforced the idea that the difference in the two groups of people was more as a result of perception than production.

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Another study published in the Oxford Journal [3] throws in yet another interesting twist. The study revealed that there still existed some differences even within the groups of subjects who could detect the smell and those who could not. Nevertheless, most scientists generally seem to back the theory that perception is the main reason some people are not able to detect any difference in the smell of their pee after eating asparagus.

Could the variation be genetic?

A DNA-sequencing company (23andMe) carried out an investigation in 2010 to find out if the ability to smell asparagus pee was linked to any genetic component. The study asked subjects if they could detect any odor in their urine after eating asparagus, and investigated the genetic similarities in the two groups. Findings revealed that the ability to detect the asparagus smell was linked to a certain DNA sequence that varied among different people. This means that a single mutation in the genes responsible for smell [4] may be the reason some people are unable to smell asparagus odor in urine.

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When all is said and done, it’s important to mention that only about 25% of the population seems to have this unique DNA sequence that allows them to smell asparagus pee. So basically, you do not need to worry about a thing; if you are able to smell the funny scent in your pee after eating asparagus, you’ve got a good nose and can be proud of it.

Featured photo credit: jackmac34 via pixabay.com

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Reference

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Christopher Jan Benitez

Christopher is a passionate writer sharing about lifestyle tips on Lifehack.

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Last Updated on March 25, 2020

How to Live Longer? 21 Ways to Live a Long Life

How to Live Longer? 21 Ways to Live a Long Life

When it comes to living long, genes aren’t everything. Research has revealed a number of simple lifestyle changes you can make that could help to extend your life, and some of them may surprise you.

So, how to live longer? Here are 21 ways to help you live a long life

1. Exercise

It’s no secret that physical activity is good for you. Exercise helps you maintain a healthy body weight and lowers your blood pressure, both of which contribute to heart health and a reduced risk of heart disease–the top worldwide cause of death.

2. Drink in Moderation

I know you’re probably picturing a glass of red wine right now, but recent research suggests that indulging in one to three glasses of any type of alcohol every day may help to increase longevity.[1] Studies have found that heavy drinkers as well as abstainers seem to have a higher risk of early mortality than moderate drinkers.

3. Reduce Stress in Your Life

Stress causes your body to release a hormone called cortisol. At high levels, this hormone can increase blood pressure and cause storage of abdominal fat, both of which can lead to an increased risk of heart disease.

4. Watch Less Television

A 2008 study found that people who watch six hours of television per day will likely die an average of 4.8 years earlier than those who don’t.[2] It also found that, after the age of 25, every hour of television watched decreases life expectancy by 22 minutes.

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Television promotes inactivity and disengagement from the world, both of which can shorten your lifespan.

5. Eat Less Red Meat

Red meat consumption is linked to an increased risk of heart disease and cancer.[3] Swapping out your steaks for healthy proteins, like fish, may help to increase longevity.

If you can’t stand the idea of a steak-free life, reducing your consumption to less than two to three servings a week can still incur health benefits.

6. Don’t Smoke

This isn’t exactly a revelation. As you probably well know, smoking significantly increases your risk of cancer.

7. Socialize

Studies suggest that having social relationships promotes longevity.[4] Although scientists are unsure of the reasons behind this, they speculate that socializing leads to increased self esteem as well as peer pressure to maintain health.

8. Eat Foods Rich in Omega-3 Fatty Acids

Omega-3 fatty acids decrease the risk of heart disease[5] and perhaps even Alzheimer’s disease.[6] Salmon and walnuts are two of the best sources of Omega-3s.

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9. Be Optimistic

Studies suggest that optimists are at a lower risk for heart disease and, generally, live longer than pessimists.[7] Researchers speculate that optimists have a healthier approach to life in general–exercising more, socializing, and actively seeking out medical advice. Thus, their risk of early mortality is lower.

10. Own a Pet

Having a furry-friend leads to decreased stress, increased immunity, and a lessened risk of heart disease.[8] Depending on the type of pet, they can also motivate you to be more active.

11. Drink Coffee

Studies have found a link between coffee consumption and longer life.[9] Although the reasons for this aren’t entirely clear, coffee’s high levels of antioxidants may play a role. Remember, though, drowning your cup of joe in sugar and whipped cream could counter whatever health benefits it may hold.

12. Eat Less

Japan has the longest average lifespan in the world, and the longest lived of the Japanese–the natives of the Ryukyu Islands–stop eating when they’re 80% full. Limiting your calorie intake means lower overall stress on the body.

13. Meditate

Meditation leads to stress reduction and lowered blood pressure.[10] Research suggests that it could also increase the activity of an enzyme associated with longevity.[11]

Taking as little as 15 minutes a day to find your zen can have significant health benefits, and may even extend your life.

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How to meditate? Here’re 8 Meditation Techniques for Complete Beginners

14. Maintain a Healthy Weight

Being overweight puts stress on your cardiovascular system, increasing your risk of heart disease.[12] It may also increase the risk of cancer.[13] Maintaining a healthy weight is important for heart health and living a long and healthy life.

15. Laugh Often

Laughter reduces the levels of stress hormones, like cortisol, in your body. High levels of these hormones can weaken your immune system.

16. Don’t Spend Too Much Time in the Sun

Too much time in the sun can lead to an increased risk of skin cancer. However, sun exposure is an excellent way to increase levels of vitamin D, so soaking up a few rays–perhaps for around 15 minutes a day–can be healthy. The key is moderation.

17. Cook Your Own Food

When you eat at restaurants, you surrender control over your diet. Even salads tend to have a large number of additives, from sugar to saturated fats. Eating at home will enable you to monitor your food intake and ensure a healthy diet.

Take a look at these 14 Healthy Easy Recipes for People on the Go and start to cook your own food.

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18. Eat Mushrooms

Mushrooms are a central ingredient in Dr. Joel Fuhrman’s GOMBS disease fighting diet. They boost the immune system and may even reduce the risk of cancer.[14]

19. Floss

Flossing helps to stave off gum disease, which is linked to an increased risk of cancer.[15]

20. Eat Foods Rich in Antioxidants

Antioxidants fight against the harmful effects of free-radicals, toxins which can cause cell damage and an increased risk of disease when they accumulate in the body. Berries, green tea and broccoli are three excellent sources of antioxidants.

Find out more antiosidants-rich foods here: 13 Delicious Antioxidant Foods That Are Great for Your Health

21. Have Sex

Getting down and dirty two to three times a week can have significant health benefits. Sex burns calories, decreases stress, improves sleep, and may even protect against heart disease.[16] It’s an easy and effective way to get exercise–so love long and prosper!

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Featured photo credit: Sweethearts/Patrick via flickr.com

Reference

[1] Wiley Online Library: Late‐Life Alcohol Consumption and 20‐Year Mortality
[2] BMJ Journals: Television viewing time and reduced life expectancy: a life table analysis
[3] Arch Intern Med.: Red Meat Consumption and Mortality
[4] PLOS Medicine: Social Relationships and Mortality Risk: A Meta-analytic Review
[5] JAMA: Fish and Omega-3 Fatty Acid Intake and Risk of Coronary Heart Disease in Women
[6] NCBI: Effects of Omega‐3 Fatty Acids on Cognitive Function with Aging, Dementia, and Neurological Diseases: Summary
[7] Mayo Clinic Proc: Prediction of all-cause mortality by the Minnesota Multiphasic Personality Inventory Optimism-Pessimism Scale scores: study of a college sample during a 40-year follow-up period.
[8] Med Hypotheses.: Pet ownership protects against the risks and consequences of coronary heart disease.
[9] The New England Journal of Medicine: Association of Coffee Drinking with Total and Cause-Specific Mortality
[10] American Journal of Hypertension: Blood Pressure Response to Transcendental Meditation: A Meta-analysis
[11] Science Direct: Intensive meditation training, immune cell telomerase activity, and psychological mediators
[12] JAMA: The Disease Burden Associated With Overweight and Obesity
[13] JAMA: The Disease Burden Associated With Overweight and Obesity
[14] African Journal of Biotechnology: Anti-cancer effect of polysaccharides isolated from higher basidiomycetes mushrooms
[15] Science Direct: Periodontal disease, tooth loss, and cancer risk in male health professionals: a prospective cohort study
[16] AHA Journals: Sexual Activity and Cardiovascular Disease

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