Supports energy production and skin health, but watch out for the 'niacin flush'.
Effective Dose
50-500 mg
Onset
Fast
Cost
Budget
Cycle
Not necessary; can be taken continuously.
7 things you need to know
What it does
Supports energy production and skin health, but watch out for the 'niacin flush'.
Worth it?
6.5/10. Vitamin B3 is essential for energy metabolism and has potential benefits for skin health. However, the 'niacin flush' is a common side effect, and benefits beyond deficiency correction are debated.
How much to take
50-500 mg
Price
Cheap (under $15/month)
How fast it works
You feel it within an hour
Safety
Check if: liver problems, stomach ulcers
What people say
Increased energy levels, sometimes accompanied by a warm, flushing sensation (especially with nicotinic acid). Some may experience mild stomach upset at higher doses.
Niacin was first discovered through the study of pellagra, a disease caused by niacin deficiency, particularly prevalent in populations relying heavily on corn as a staple food.
"Increased energy levels, sometimes accompanied by a warm, flushing sensation (especially with nicotinic acid). Some may experience mild stomach upset at higher doses."
Research backing for this ingredient
Multiple high-quality studies confirm efficacy
180+
Yes
Generally accepted with some debate
Modifies blood lipid profiles (increases HDL, decreases LDL and triglycerides)
Multiple Meta-analyses of >30 RCTs
Reduces rate of new non-melanoma skin cancers (specifically Nicotinamide form)
Phase 3 RCT (n=386)
Reduces cardiovascular events in statin-treated patients
Large-scale RCTs (AIM-HIGH, HPS2-THRIVE) showing null results
"Niacin's role in energy metabolism is well-established. Its benefits for cholesterol management at higher (prescription) doses are also recognized. However, the evidence for benefits at typical supplement doses for the average person is less robust, especially beyond correcting deficiency."
Vitamin B3 is crucial for converting food into energy. It also plays a role in maintaining healthy skin and nerve function. While high doses can help with cholesterol, lower doses are generally used in supplements for overall health.
Products below minimum dose are likely ineffective
When
Any time
How
50-500 mg
Food
Take with food to minimize stomach upset.
Noticeable effects on energy levels may take a few hours to days. The 'niacin flush' can occur within minutes of taking a dose.
Not necessary; can be taken continuously.
Check for specific interactions.
Vitamin B3 (Niacin) is categorized as a vitamin.
Scientific consensus score: 7/10.
Evidence quality: MODERATE.
Add Vitamin B3 (Niacin) to your stack analyzer or compare it with other ingredients.
Not medical advice. Always consult a healthcare provider.