Can You Take Too Much Biotin?

Can You Take Too A lot Biotin?

Getting sufficient biotin is vital—however is it potential to get an excessive amount of?


Initially known as vitamin H, biotin has been acknowledged as a micronutrient since 1927. Since then, the vitamin shortly turned a well-liked dietary complement.


And, utilization of the complement nonetheless seems to be on an upward trajectory. Based on 2020 analysis, the prevalence of biotin use elevated from 0.1% of the U.S. grownup inhabitants in 1999–2000 to 2.8% in 2015–2016.


Biotin is greatest recognized for its useful results on pores and skin, and getting sufficient of it (30 micrograms per day for adults) helps different areas of well being as properly.


“Assembly biotin wants is vital for hair well being, hormone well being, and metabolism,” Vanessa King, MS, RDN, scientific diet supervisor for The Queen’s Well being System in Honolulu, Hawaii, and spokesperson for the Academy of Diet and Dietetics, instructed Well being


Whereas biotin consumption is price prioritizing, there may be the potential of an excessive amount of of a great factor.


Right here’s how a lot biotin is important, in addition to the unwanted side effects of consuming an excessive amount of.


Getty Photographs / Iryna Imago




Regardless of its unique “H” moniker, biotin is a B vitamin. Now, it additionally goes by the identify vitamin B7.


It’s a cofactor for a number of enzymes concerned within the metabolism of fat, proteins, and carbohydrates. In different phrases—it helps the physique convert meals into power.


Moreover its results on metabolism, biotin has been studied for its potential impression on pores and skin well being and hair progress.


King defined that biotin deficiency is related to pores and skin rashes, hair loss, and brittle nails.


Some analysis has proven that elevated biotin consumption might make a significant distinction for folks with these well being points.


For instance, a 2017 examine of 18 folks discovered that biotin helped enhance hair and nail progress.


Nevertheless, some specialists say there’s inadequate analysis to show a connection between biotin and more healthy hair and nails.


“I don’t advocate biotin supplementation often for sufferers with hair loss,” Anthony Rossi, MD, dermatologist and Mohs surgeon at Memorial Sloan Kettering Most cancers Middle, instructed Well being. “Most research have proven no profit with biotin supplementation until somebody has a lab-proven biotin deficiency.”


Based on the Nationwide Institutes of Well being Workplace of Dietary Dietary supplements, solely case experiences—not analysis research—have supported claims that biotin dietary supplements promote hair and pores and skin well being.





Although analysis could not have confirmed a connection between biotin and stronger nails, pores and skin, and hair, B7 dietary supplements should be price a strive.


Anecdotal experiences point out that some folks do expertise advantages in these areas, Reid Maclellan, MD, adjunct college at Harvard Medical College and founder and CEO of dermatology app Cortina, instructed Well being.


“Whereas there isn’t any proof to help the declare that taking biotin will assist with bettering the well being or general look of your hair, nails, and progress, there are some individuals who have some success with the speed of nail or hair progress after taking a biotin complement,” he mentioned.


A biotin deficiency is one more reason you would possibly want to show to dietary supplements.


“There’s such a factor as a biotin deficiency, however it’s not widespread,” mentioned Maclellan. “This deficiency is most typical in pregnant girls, when alcohol consumption is excessive, in people who smoke, and through malnourishment.”


Bacterial imbalances within the GI tract from antibiotics or inflammatory bowel illness also can put folks vulnerable to biotin deficiency, Rossi mentioned.



The beneficial each day consumption of biotin is 30 micrograms, however many over-the-counter dietary supplements exceed this degree.


NOW Foods’ extra-strength biotin capsules, for instance, include 10,000 micrograms, and Pure Research liquid biotin drops provide a staggering 20,000 micrograms per dose.


So, are ranges this excessive harmful?


Generally, no. There isn’t any established higher restrict—poisonous degree—for biotin, partly as a result of the physique flushes out what it may possibly’t use.


“It’s troublesome to devour an excessive amount of biotin from supplementation as a result of it’s a water-soluble vitamin, and if consumed in extra will probably be detoxed by way of urine,” Maclellan mentioned.


Then once more, that doesn’t imply you received’t expertise any unwanted side effects from overdoing it on biotin.


Maclellan defined that some folks report nausea or gastrointestinal upset, and sleep problems or dehydration can happen, too.


Based on King, very excessive biotin supplementation also can intervene with the outcomes of sure lab exams, similar to thyroid and troponin.





Most individuals can get sufficient biotin from a well-rounded food regimen.


A stunning array of each plant and animal meals include this nutrient.


To make sure your consumption is ample, King recommends specializing in the next:




If you happen to’re involved your food regimen isn’t supplying you with the biotin you want, discuss to your physician or registered dietitian about the potential of supplementing.


Although they could advocate a complement that can assist you attain your each day 30 micrograms, you could not want—and even be capable of use—the extraordinarily excessive ranges of many business dietary supplements.

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