Body Weight

Does Biotin Cause Weight Gain?

In recent years, biotin, also known as vitamin B7 or vitamin H, has grown in popularity as a supplement for hair, skin, and nail health. However, there have been worries that biotin can cause weight gain. In this post, we’ll look at the link between biotin and weight gain, including scientific facts, expert comments, and practical issues.

What is Biotin?

Biotin, commonly known as vitamin B7 or vitamin H, is a water-soluble vitamin from the B complex group of vitamins. It is essential in many metabolic activities in the body, including the metabolism of lipids, carbs, and proteins. Biotin is necessary for fatty acid synthesis, amino acid degradation, and glucose generation.

Health Benefits of Biotin

1. Healthy Hair, Skin, and Nails

Biotin is well-known for its ability to support healthy hair, skin, and nails. Biotin promotes the development of keratin, a protein that serves as the structural foundation for hair, skin, and nails. By getting enough biotin, you can help keep these essential tissues strong, resilient, and looking good.

2. Metabolism and Energy Levels

Biotin is essential for metabolism, helping to convert carbs, lipids, and proteins from diet into energy. This metabolic activity is necessary to fuel the body’s cellular operations and keep energy levels stable throughout the day. Biotin, which supports efficient metabolism, can help reduce weariness and increase overall vigour.

3. Brain Function and Cognitive Health

In addition to its involvement in energy metabolism, biotin helps to maintain normal brain function and cognitive health. Biotin promotes the creation of neurotransmitters, chemical messengers that allow brain cells to communicate with one another. Adequate biotin levels can help with cognitive processes like memory, focus, and mental clarity.

4. Maintaining Healthy Blood Sugar Levels

New research reveals that biotin may help regulate blood sugar levels and promote overall metabolic health. Biotin aids in the breakdown of glucose, the body’s principal source of energy produced from carbs. Biotin, by increasing insulin sensitivity and glucose utilisation, may assist to stabilise blood sugar levels and lower the risk of metabolic diseases.

5. Cardiovascular Health

Biotin also helps the body metabolize lipids and cholesterol, which improves cardiovascular health. Biotin, which promotes fat breakdown and utilisation, can help avoid cholesterol accumulation in the bloodstream, lowering the risk of atherosclerosis and heart disease. In addition, biotin promotes the generation of nitric oxide, a chemical that dilates blood vessels and improves circulation.

Health Benefits of Biotin

What Are The Possible Side Effects of Biotin?

Some people may develop adverse effects, although they are uncommon. Possible negative effects of biotin supplementation include the following:

  • Skin rashes or itching: Some people may suffer allergic reactions to biotin supplements, which include skin rashes or itching.
  • Nausea or digestive issues: High dosages of biotin may induce gastrointestinal discomfort, such as nausea, cramps, or diarrhoea, in some people.
  • Interference with lab tests: Biotin supplements may interfere with some lab tests, resulting in incorrect findings. This interference is especially important for tests that use biotin-streptavidin technology, such as hormone assays and several blood tests.
  • Potential drug interactions: Biotin supplements may interact with certain drugs, reducing their effectiveness or increasing the likelihood of negative effects. It is crucial to contact with a doctor before taking biotin supplements if you’re on medication.
  • Acne flare-ups: Some people have reported breakouts or worsening of existing acne after using biotin supplements. This effect is poorly understood and can vary from person to person.
  • Overdose risk: While rare, excessive biotin supplementation can result in toxicity symptoms such as digestive disorders and skin problems.

What Cause Weight Gain?

Many factors influence weight growth, including genetics, nutrition, physical activity, hormones, and metabolic rate. While ingesting too many calories in relation to energy expenditure is the primary cause of weight gain, hormonal imbalances and metabolic disruptions can also contribute to changes in body weight.

There is insufficient research on the association between biotin supplementation and weight growth. However, some research have looked into the role of biotin in metabolism and its potential impact on body composition. For example, a research published in the “Journal of Nutritional Biochemistry” revealed that biotin deficiency may result in impaired glucose metabolism and altered lipid profiles, which might hypothetically affect weight over time.

Does Biotin Actually Cause Weight Gain?

There is no actual evidence proving that biotin cause weight gain. Biotin is a water-soluble B vitamin that aids in energy metabolism and the breakdown of macronutrients such as carbs, lipids, and proteins. Some people take biotin supplements because they believe it would enhance metabolism and help them lose weight, although scientific evidence to back this claim is inadequate.

However, some studies show that some people may gain weight when using biotin pills. This weight increase is sometimes ascribed to various factors rather than biotin. For example, some biotin supplements contain fillers or chemicals that, if ingested in excess, might cause weight gain. Additionally, changes in nutrition, lifestyle, or underlying health issues may influence weight changes.

Factors to Consider Before Getting Biotin Supplements

1. Purity and Quality

When selecting a biotin supplement, it is critical to consider purity and quality. Look for products made by reliable organisations with good manufacturing practice (GMP) certifications. Additionally, choose supplements that have undergone third-party testing to verify potency and purity.

2. Dosage

Biotin supplements are available in a variety of dosage strengths, ranging from 100 mcg to 10,000 mcg/serving. The appropriate dosage is determined by each individual’s needs and health goals. It is recommended to begin with a lower dosage and gradually increase as needed, as large doses of biotin may not always provide additional advantages and may cause negative effects.

3. Formulation

Biotin supplements come in a variety of forms, including capsules, softgels, pills, and gummies. When choosing a formulation, think about your preferences and the simplicity of use. Some supplements may also contain other compounds, such as collagen or keratin, which may provide extra advantages for hair, skin, and nails.

4. Certifications and Testing

Look for biotin supplements that have been approved by respected organisations like the United States Pharmacopoeia (USP) or NSF International. These certifications assure that the product fulfils high standards of quality, purity, and safety. Additionally, select supplements that have undergone independent third-party testing for pollutants such as heavy metals, pesticides, and microbiological contaminants.

Factors to Consider Before Getting Biotin Supplements

Top-Rated Biotin Supplements

1. Nature’s Bounty Biotin Softgels

Nature’s Bounty is a well-known and renowned brand that provides a variety of high-quality supplements. Their biotin softgels include 10,000 mcg of biotin per serving, are non-GMO, and gluten free. These softgels are simple to take and absorb, making them a good alternative for those seeking a powerful biotin supplement.

2. Sports Research Biotin

Sports Research Biotin capsules offer 5,000 mg of biotin per serving and are formulated with organic coconut oil to improve absorption. These capsules are non-GMO, gluten-free, and third-party verified to ensure purity and potency. They also include no artificial colours, flavours, or preservatives, making them a safe and natural option for biotin supplementation.

3. Vitafusion Extra Strength Biotin Gummies

Vitafusion Extra Strength Biotin Gummies are a great option for those who want to consume supplements in a more fun way. These tasty candies contain 5,000 mcg of biotin per serving and are produced with natural fruit flavours. They include no artificial sweeteners, gluten, or dairy, making them appropriate for people with dietary restrictions or sensitivities.

Biotin-Rich Food

Include biotin-rich foods in your daily diet to ensure you get enough of this important vitamin. Here are some meals that are rich in biotin:

  1. Eggs: Egg yolks are an excellent source of biotin, with one big egg containing about 10 micrograms.
  2. Nuts and seeds: Almonds, peanuts, walnuts, sunflower seeds, and other nuts and seeds contain biotin.
  3. Fish: Salmon, tuna, mackerel, and other fatty fish contain significant amounts of biotin.
  4. Meat: Liver and other organ meats are particularly rich in biotin. Other meats, such as pork, poultry, and beef, give biotin, but in lower levels.
  5. Dairy products: Milk, cheese, and yoghurt are all rich in biotin.
  6. Vegetables: Sweet potatoes, spinach, broccoli, and cauliflower have biotin.
  7. Fruits: Fruits rich in biotin include bananas, avocados, and raspberries.
  8. Whole grains: Whole grains rich in biotin include whole wheat bread, oats, barley, and brown rice.

How Much Biotin Do You Need Everyday?

Here’s a table showing the recommended daily intake of biotin for different age groups:

Age GroupRecommended Daily Intake of Biotin
Infants 0-6 months5 micrograms (mcg)
Infants 7-12 months6 mcg
Children 1-3 years8 mcg
Children 4-8 years12 mcg
Children 9-13 years20 mcg
Adolescents 14-18 years25 mcg (males) / 25 mcg (females)
Adults 19 years and older30 mcg
Pregnant adolescents and adults30 mcg
Breastfeeding adolescents and adults35 mcg

These recommended daily intakes are based on dietary reference intakes (DRIs) developed by the Food and Nutrition Board of the National Academies of Sciences, Engineering, and Medicine in the United States. Individual needs may differ, so it’s always better to speak with a healthcare practitioner or a qualified dietitian for tailored recommendations.

What If You Take Too Much Biotin?

Excessive biotin intake can cause skin rashes, digestive issues, and interference with lab tests. As a water-soluble vitamin, excess biotin is typically excreted through urine, reducing the risk of toxicity. However, excessive biotin intake can lead to acne, digestive discomfort, and inaccurate results in blood tests measuring hormones or thyroid function.

Can Biotin Help With Weight Loss?

Biotin is not a weight loss product, and there is little scientific evidence to claim that it causes weight loss. Biotin is a water-soluble B vitamin that is essential for metabolism, namely the breakdown of carbs, lipids, and proteins to produce energy. However, while biotin is necessary for overall health and metabolism, there is no compelling evidence that taking biotin supplements alone will result in considerable weight loss.

Some people may link biotin with weight loss due to its participation in metabolic processes. However, using only biotin pills for weight loss is unlikely to produce significant outcomes. A well-balanced diet, regular exercise, and overall healthy living practices are still essential for successful weight management.

Related: Purple Fizzy Juice Recipe For Weight Loss


In conclusion, while biotin is important for metabolism and overall health, there is little scientific evidence to imply that it directly cause weight gain. Weight regulation is a complicated interplay of multiple factors, and biotin supplementation on its own is unlikely to have a major impact on body weight. Before beginning any dietary supplement regimen, contact with a healthcare professional.

Frequently Asked Questions

Does Biotin make you gain weight?

Nope! Biotin will not cause you to gain weight by itself. It is a vitamin that aids in the conversion of food into energy, but it has no direct effect on weight growth. Eating too much food, particularly junk food, and not exercising can cause weight gain, not biotin.

Can taking Biotin pills increase my weight?

Taking biotin supplements should not cause you to gain weight on their own. Biotin is essential for your hair, skin, and nails, but it has no magical ability to make you acquire weight. Just make sure you don’t overeat or have a sedentary lifestyle, and you should be OK!

I’ve heard Biotin can make you fat. Is that true?

Don’t worry, that’s only a myth! Biotin is truly quite beneficial to your health. It promotes metabolism, the process by which your body converts food into energy. However, it will not cause you to gain weight on its own. Eating too many unhealthy meals and not exercising are more likely to result in weight gain.

Does Biotin cause belly fat?

No, biotin does not target your belly or any other specific area of your body to cause fat growth. It is a vitamin that is beneficial to your general health, particularly your hair, skin, and nails. To maintain a healthy weight, eat balanced meals and remain active!

Will taking Biotin supplements make me gain weight overnight?

No, using biotin will not cause you to gain weight! It is not a weight-gaining miracle drug. Biotin is a vitamin that your body need in modest amounts and is actually quite beneficial to you. If you’re worried about gaining weight, just make sure you eat well and exercise often.

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