Comment:
Niacinamide is the same compound as nicotinamide, which is one of the two main active forms of vitamin B3 (the other being niacin, also called nicotinic acid). So if you buy a supplement labeled niacinamide or nicotinamide, you’re getting the same thing.
There are vegan sources:
🟢 Natural Vegan Sources of Vitamin B3 (Niacin/Nicotinamide):
Here’s a list of good plant-based sources of vitamin B3:
🌾 Whole Grains (especially enriched/fortified)
Brown rice
Whole wheat bread
Oats
Fortified breakfast cereals (check labels — many are enriched with B3)
🥜 Legumes and Nuts
Peanuts (very high in niacin)
Lentils
Chickpeas
Black beans
Soybeans and tofu
🌰 Seeds
Sunflower seeds
Chia seeds
Pumpkin seeds
🥦 Vegetables
Mushrooms (especially portobello and shiitake)
Sweet potatoes
Potatoes
Green peas
Avocados
Broccoli
🍌 Fruits (modest amounts)
Bananas
Dates
Mangoes
Tomatoes
🔁 Bonus: Tryptophan → Niacin Conversion
Your body can convert the amino acid tryptophan into niacin — but not very efficiently (about 60 mg of tryptophan makes 1 mg of niacin).
Good vegan sources of tryptophan:
Soy products (tofu, tempeh)
Pumpkin seeds
Oats
Chia seeds
Bananas
So, a high-protein vegan diet can help support niacin levels this way too.