Source Naturals Niacin 100 mg – Vitamin B3 Food Supplement – 100 Tablets

What Is Vitamin B3 (Niacin)?

Vitamin B3, commonly referred to as niacin, is an essential water-soluble vitamin that your body needs for numerous metabolic processes. It plays a key role in converting the food you eat into usable energy and supports the normal function of your nervous system and skin. Since your body cannot make niacin on its own, it must come from your diet or supplementation. Source Naturals Niacin provides 100 mg of vitamin B3 in easy-to-swallow tablets, made with non-GMO ingredients and manufactured in the USA under rigorous quality standards.

Key Health Benefits of Niacin

Niacin contributes to normal energy-yielding metabolism, helping your body efficiently break down carbohydrates, fats, and proteins for fuel. It also supports the maintenance of normal skin, mucous membranes, and nervous system function. These benefits are recognised by the European Food Safety Authority (EFSA) as part of a healthy diet. Additionally, niacin helps to maintain normal psychological function and reduces tiredness and fatigue. This product is a food supplement and should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

Safety and Potential Side Effects

Niacin at 100 mg per day is generally well tolerated by most adults. However, higher doses may cause side effects such as flushing, itching, and gastrointestinal discomfort. The most common side effect is the harmless 'niacin flush', which typically subsides with continued use. Individuals with liver disease, active peptic ulcers, or gout should avoid high-dose niacin without medical supervision. If you are pregnant, breastfeeding, or taking medication, consult your health care professional before use.

How to Take Niacin: Dosage and Tips

The recommended dose is one 100 mg tablet daily, preferably with a meal to reduce the chance of flushing and stomach upset. To further minimise the flush, take with a full glass of water and avoid hot drinks. If you are new to niacin, you can start with half a tablet (50 mg) and gradually increase. Do not exceed the recommended dose unless advised by a doctor.

Niacin Flush vs. Non-Flush Forms – What's the Difference?

This Source Naturals product contains nicotinic acid, the form of niacin that can cause a temporary flushing sensation—warmth, redness, or tingling on the skin. This flush is harmless and often diminishes with regular use. In contrast, niacinamide (another form of vitamin B3) does not cause flushing but does not have the same effects on lipid metabolism. Inositol hexanicotinate is a non-flush option with variable absorption. Starting with a lower dose like 100 mg can help your body adjust.

Why Choose Source Naturals Niacin?

Source Naturals has been a trusted name in dietary supplements for over 40 years. Their niacin tablets are non-GMO, gluten-free, and manufactured in Scotts Valley, California, under current Good Manufacturing Practises (cGMP) established by the FDA. Each batch undergoes third-party testing for purity and potency. The bottle provides 100 tablets, a three-month supply at the recommended dose. Choosing Source Naturals ensures a reliable and effective vitamin B3 supplement.

Frequently Asked Questions

Can I take niacin on an empty stomach?

It is best taken with food to reduce the likelihood of flushing and stomach upset.

How long does the flush last?

The flushing sensation usually lasts between 15 and 60 minutes and may become less noticeable over time.

Is this niacin suitable for vegans?

The tablets contain no animal-derived ingredients; check the label for full details. Source Naturals does not list any animal products.

Can I take this with other medications?

Niacin may interact with certain drugs, including blood pressure medicines and statins. Consult your health care provider before combining supplements.