Biotin Is More Than Just a Beauty Vitamin
Dr. Joseph Mercola - Take Control of Your Health
Briana Mercola
4.6 • 1.6K Ratings
🗓️ 18 October 2025
⏱️ 8 minutes
🧾️ Download transcript
Summary
- Biotin, also known as vitamin B7, is a water-soluble B-vitamin that plays a vital role in converting food into energy and supporting overall metabolic function
- Biotin is widely recognized for its role in supporting healthy hair, skin, and nails by helping the body produce keratin and other structural proteins
- In addition to its beauty benefits, biotin supports nervous system health, blood sugar regulation, and cardiovascular wellness, contributing to overall vitality and well-being
- During pregnancy, biotin needs increase and are essential for normal fetal development, making adequate intake important for expectant mothers
- Your body does not store biotin, so a consistent intake through diet is important. It is naturally present in foods such as eggs, beef liver, salmon, mushrooms, lentils, sweet potatoes, and whole grains
Transcript
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| 0:00.0 | Is your low energy really a nutrient gap, hiding in plain sight? |
| 0:04.0 | Welcome to Dr. Mercola's cellular wisdom. |
| 0:07.0 | Stay informed with quick, easy-to-listen summaries of our latest articles, |
| 0:11.0 | perfect for when you're on the go. |
| 0:13.0 | No reading required. |
| 0:14.0 | Subscribe for free at Mercola.com for the latest health insights. |
| 0:18.0 | Hello and welcome to Dr. Mercola's cellular wisdom. I'm Ethan Foster and today |
| 0:23.0 | we're focusing on biotin, also known as vitamin B7. You'll hear why it's essential for converting |
| 0:29.0 | the food you eat into usable energy and how consistent intake supports hair, skin, nails, |
| 0:34.7 | metabolism, and even healthy nerve function. I'm Alara Sky. Biotin is water-soluble, |
| 0:41.2 | so you don't store much of it. You rely on regular intake from foods like eggs, beef liver, |
| 0:47.1 | salmon, mushrooms, lentils, sweet potatoes, and whole grains. Its beauty vitamin label comes from its role in keratin production for |
| 0:55.7 | hair and nails, but its value extends to cellular energy, gene regulation, and metabolic health. |
| 1:02.6 | Let's start with what most listeners ask first. Appearance changes. When your biotin status is |
| 1:08.0 | adequate, you support healthy hair follicles through carotin production. |
| 1:12.4 | Low levels can show up as brittle hair and increase shedding. |
| 1:15.8 | There's also data on nails. |
| 1:17.6 | In one study, six months of daily biotin was linked to about a 25% increase in nail plate thickness. |
| 1:24.4 | Skin-wise, biotin helps fatty acid metabolism, which supports hydration. Deficiency can |
| 1:30.4 | present with dry, scaly red rashes around the eyes, nose, mouth, and perineum. That said, |
| 1:37.3 | the bigger story is energy metabolism. Biotin supports five key enzymes that help you break down fats, |
| 1:43.8 | carbohydrates, and amino acids. |
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