Skip to product information
1 of 8

Dr. Mercola Niacin Vitamin B3, 90 Servings (270 Tablets), Food Supplement, Mini Tablets, Essential B Vitamin, Non-GMO

Dr. Mercola Niacin Vitamin B3, 90 Servings (270 Tablets), Food Supplement, Mini Tablets, Essential B Vitamin, Non-GMO

Regular price £37.91 GBP
Sale price £37.91 GBP Regular price
Save % Sold out

HOT PRODUCT | LOW STOCK

Carefully selected from trusted wellness brands

Free worldwide delivery

Secure checkout

Buy More Save More!

Dr. Mercola Niacin Vitamin B3, 90 Servings (270 Tablets), Food Supplement, Mini Tablets, Essential B Vitamin, Non-GMO

Regular price £37.91
Sale price £37.91 Regular price
Save % Sold out
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Tracked worldwide delivery. Estimated arrival between - and -.

Key Benefits of Dr. Mercola Niacin

Dr. Mercola Niacin offers a range of benefits supported by EFSA-approved health claims:*

  • Energy Support: Niacin contributes to normal energy-yielding metabolism, helping your body convert food into usable energy.
  • Nervous System Function: Niacin contributes to the normal functioning of the nervous system, supporting nerve health.
  • Psychological Function: Niacin contributes to normal psychological function, which may support mental clarity and mood.
  • Skin Health: Niacin contributes to the maintenance of normal skin.
  • Reduction of Tiredness: Niacin contributes to the reduction of tiredness and fatigue.

Each mini tablet contains only 50 mg of niacin, allowing you to benefit from these effects with minimal risk of the niacin flush. This makes it suitable for daily uses.

What is Niacin and Why Is It Essential?

Niacin, also referred to as vitamin B3, is one of the eight water-soluble B vitamins. It plays a vital role in converting carbohydrates, fats, and proteins into energy. As an antioxidant, it helps protect cells from oxidative stress. Niacin is involved in DNA repair and the production of certain hormones. This low-dose 50 mg formulation from Dr. Mercola delivers the advantages of niacin without the uncomfortable flushing that can occur with higher doses.

Key Ingredients and Forms

The active ingredient in Dr. Mercola Niacin is nicotinic acid, the classic form of vitamin B3 that has been extensively researched for its metabolic and cardiovascular benefits. Unlike niacinamide, which does not cause flushing, nicotinic acid can induce a temporary flush at higher doses. However, this product's low 50 mg per tablet is designed to be gentle enough to avoid flushing when taken as directed. The mini tablets contain no GMOs, artificial preservatives, or colourings, ensuring a clean supplement.

How to Take Dr. Mercola Niacin

Take one mini tablet daily with food, or as directed by your health care professional. To minimise the risk of flushing, avoid taking on an empty stomach. The recommended serving is one tablet per day, but you can adjust up to three tablets daily (150 mg total) based on personal tolerance and needs. Do not exceed the recommended dosage unless advised by a doctor.

How to Choose the Right Niacin Supplement

When selecting a niacin supplement, consider the dosage, form, purity, and brand trust. Low doses (such as 50 mg) are ideal for those new to niacin or sensitive to flushing. Nicotinic acid offers the full spectrum of benefits, including those for energy and nervous system, while niacinamide lacks some effects. Choose a product with minimal additives—Dr. Mercola Niacin is non-GMO and free from artificial ingredients. Dr. Mercola has been a trusted name in natural health since 1997, with physician-formulated supplements that meet high quality standards.

Possible Side Effects and Interactions

Niacin is generally well tolerated, but some individuals may experience a niacin flush—a harmless yet temporary sensation of warmth, redness, or tingling, especially at higher doses. This formula's low 50 mg dose minimises this effect. Other rare side effects include stomach upset, dizziness, or skin itching. Niacin can interact with certain medications, including blood pressure drugs, diabetes medications, and statins. If you are taking any medication or have a medical condition, consult your health care provider before uses. If you experience severe allergic reactions such as facial swelling or rash, discontinue uses and seek medical attention.

Frequently Asked Questions

Why choose a low-dose niacin?

Low-dose niacin allows you to enjoy the benefits of vitamin B3 while minimising the likelihood of flushing. It also gives you flexibility to tailor your intake to your unique needs.

Is this niacin flush-free?

When taken as directed (one tablet with food), this 50 mg dose typically does not cause flushing. However, individuals vary; if you are sensitive, start with half a tablet.

Can I take this with other B vitamins?

Yes, niacin complements other B vitamins. Many people take it as part of a B-complex or alongside B12 and folate. However, avoid taking extremely high doses of multiple B vitamins without professional guidance.

How long until I notice benefits?

Effects vary by individual. Some notice increased energy within a few days, while others may take weeks to experience changes in mood or cognition. Consistent daily uses is key.

*These statements have not been evaluated by the Medicines and Health care products Regulatory Agency. This product is not intended to diagnose, treat, or prevent any disease.

Worldwide Delivery

Orders are prepared with clear worldwide delivery expectations from the product page through dispatch. Delivery estimates are shown before checkout where available, and tracking details are sent after the order leaves fulfilment so customers can follow the parcel and plan around the expected arrival window.

Returns and support

UK Vitality Vitamins offers straightforward post-purchase support with a clear returns process. Please check the store returns policy before sending an item back, as final eligibility may depend on product condition, packaging integrity and whether the return request is started within the stated return window.

How to choose

Use the product description, ingredient list, serving information and available variants to compare supplement options. Always check the full ingredient list, directions for use and any allergen information on the product packaging before taking any food supplement.

Ingredients and important information

Ingredient lists and formulations may vary by batch or supplier. Always check the product packaging for the most up-to-date information. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the recommended daily intake. If you are pregnant, nursing, taking medication or have a medical condition, consult your healthcare professional before use.

View full details
  • Tracked worldwide delivery

    Clear delivery messaging for shoppers worldwide.

  • Secure checkout

    Secure checkout.

  • Clear returns

    Returns information is written plainly before purchase.

  • Trusted brands

    Carefully selected supplements from established wellness brands.

Supplement guide

Dr. Mercola Niacin Vitamin B3, 90 Servings (270 Tablets), Food Supplement, Mini Tablets, Essential B Vitamin, Non-GMO at UK Vitality Vitamins

Key Benefits of Dr. Mercola NiacinDr. Mercola Niacin offers a range of benefits supported by EFSA-approved health claims:* Energy Support: Niacin contributes to normal energy-yielding metabolism, helping your body co...

Category Vitamins & Supplements > Vitamins > Vitamin B > Niacin
Delivery area Worldwide
Checkout Secure checkout
Brand Dr. Mercola
Price £37.91
Availability In stock
antioxidantclean ingredientsDr. Mercolaenergy metabolismfood supplementlow dose niacinmini tabletsnervous system functionniacinnicotinic acid

How to choose if this supplement fits your routine

Read the ingredient list, check the serving size and directions for use. Consider the supplement form (tablet, capsule, liquid) and whether it suits your dietary requirements. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

What UK Vitality Vitamins shows before checkout

Every product page displays price, availability, variant choices, ingredient information, directions for use, allergen details, worldwide delivery expectations and secure checkout — so you can make an informed decision quickly.

Questions about Dr. Mercola Niacin Vitamin B3, 90 Servings (270 Tablets), Food Supplement, Mini Tablets, Essential B Vitamin, Non-GMO

Is Dr. Mercola Niacin Vitamin B3, 90 Servings (270 Tablets), Food Supplement, Mini Tablets, Essential B Vitamin, Non-GMO available with worldwide delivery?

Yes. This product is currently available on UK Vitality Vitamins with free worldwide delivery.

How should I compare this with similar supplements?

Compare the active ingredients, serving size, number of servings per container, supplement form, brand reputation and price per serving. Check allergen information if relevant to your dietary needs.

Where can I find delivery and returns information?

Delivery information is shown near the add to basket area. Returns guidance is available on the product page and full terms are covered in the store returns policy.

Supplement shopping with clarity

UK Vitality Vitamins product pages display ingredients, directions, allergen details and delivery information clearly — so you can compare supplements and make informed choices quickly.