The Best Vegan Niacin Food Sources (Per Gram and Calorie)

Niacin, otherwise known as vitamin B3, is used to produce energy, fatty acids, cholesterol, and more.

It’s also a part of the DNA repair process.

For adults, the recommended daily amount of niacin is 16 mg for men, and 14 mg for women.

There’s also an upper limit of 35 mg. If you reach it, you will experience a “flushing” reaction, usually starting with your face. It’s not serious, but could cause some discomfort.

On to the best vegan sources of niacin.

The Best Vegan Niacin Foods (Per 100 Grams and Calories)

While most people are not deficient in niacin, you will need multiple servings of even the best vegan sources to reach the RDA.

All the data in the following table comes right from the USDA’s database.

Food	Niacin (mg) per 100 grams	Niacin (mg) per 100 calories
Seaweed (dried)	12.81	4.49
Peanuts	12.07	2.13
Hemp seeds	9.20	1.66
Chia seeds	8.83	1.81
Wheat flour (whole-grain)	5.35	1.61
Buckwheat groats	5.13	1.49
Sesame seeds	4.52	0.79
Pine nuts	4.39	0.65
Rye grain	4.27	1.26
Almonds	3.62	0.62
Flaxseed	3.08	0.58
Macadamia nut	2.47	0.34
Peas	2.09	2.59
Barley	2.06	1.68
Avocado	1.91	1.15
Hazelnut	1.80	0.29
Corn	1.77	2.06
Date	1.61	0.58
Cowpeas	1.40	1.45
Cashew	1.40	0.24
Chestnut	1.34	0.55
Pistachio nuts	1.30	0.23
Soybeans	1.25	0.89
Rapini	1.22	5.52
Kale	1.18	3.31
Pecans	1.17	0.17
Nectarine	1.13	2.54
Walnut	1.12	0.17
Guava	1.08	1.61
Asparagus	1.08	5.00
Durian	1.07	0.73
White potato	1.07	1.54
Lentils	1.06	0.91
Artichoke	1.05	2.23
Lima beans	1.04	0.85
Okra	1.00	3.06
Carrot	0.98	2.36
Red bell pepper	0.98	3.73
Oats	0.96	0.25
Jackfruit	0.92	0.97
Water spinach	0.90	4.58
Cassava	0.85	0.53
Peach	0.81	2.08
Mustard greens	0.80	2.99
Ginger	0.75	0.75
Green bean	0.73	2.38
Cantaloupe	0.73	2.14
Spinach	0.72	3.16
Adzuki beans	0.72	0.56
Fava bean	0.71	0.65
Garlic	0.70	0.53
Parsnip	0.70	0.93
Plantain	0.67	0.55
Mango	0.67	1.11
Banana	0.66	0.75
Eggplant	0.65	2.60
Navy beans	0.65	0.46
Blackberry	0.65	1.50
Broccoli	0.64	1.87
Brussels sprouts	0.61	1.69
Lychee	0.60	0.90
Raspberry	0.60	1.14
Turnip greens	0.60	1.83
Apricot	0.60	1.25
Tomato	0.59	3.28
Kidney beans	0.58	0.45
Mung bean	0.58	0.55
Sweet potato	0.56	0.65
Coconut meat	0.54	0.15
Chickpeas	0.53	0.32
Cauliflower	0.51	2.01
Black beans	0.51	0.38
Bok choy	0.50	3.89
Pineapple	0.50	1.00
Squash	0.49	3.03
Green bell pepper	0.48	2.38
Napa cabbage	0.47	3.91
Zucchini	0.45	2.65
Melon	0.42	1.16
Plum	0.42	0.92
Quinoa	0.41	0.34
Swiss chard	0.40	2.11
Gourd	0.40	1.98
Orange	0.40	0.88
Leek	0.40	0.66
Chicory root	0.40	0.56
Lotus root	0.40	0.54
Fig	0.40	0.54
Rice	0.40	0.31
Strawberry	0.39	1.21
Tangerine	0.38	0.70
Beets	0.33	0.75
Lettuce (red leaf)	0.32	2.48
Celery	0.32	2.28
Arugula	0.31	1.22
Bamboo shoot	0.30	2.54
Brazil nut	0.29	0.04
Pumpkin seeds	0.29	0.06
Grapefruit	0.27	0.73
Radish	0.26	1.53
Amaranth	0.23	0.23
Cabbage	0.23	0.95
Pummelo	0.22	0.58
Watercress	0.20	1.67
Lime	0.20	0.67
Grapes	0.19	0.27
Pear	0.16	0.28
Cherry	0.15	0.24
Onion	0.12	0.29
Cranberry	0.10	0.22
Lemon	0.10	0.34
Cucumber	0.10	0.64
Apple	0.09	0.18
Olive	0.04	0.03

There are a few types of foods that really stand out at the top:

1. Grains – Buckwheat, rye, whole wheat, and barley are all excellent sources of niacin.
2. Seeds – Sesame seeds, hemp seeds, and chia seeds are all in the top half of the list.
3. Mushrooms – A great source of niacin if watching calories.
4. Leafy greens (e.g. spinach)

Peanuts are the number 1 food, but also the only legume on the list until lentils, which are much lower.

The Most Efficient Sources of Niacin

Finally, let’s try to find the best niacin sources if you’re trying to limit how many calories and servings you need to reach your niacin targets.

We can do this by plotting the amount of niacin per serving against the amount per 100 calories.

That chart looks like this (click to enlarge) – note: mushrooms are not on the chart, but would score the best:

With this type of chart, the best food sources should be towards the top-right section of the chart.

Other than peanuts, nothing stands out too much. Still, it seems like the most balanced niacin sources are:

• Spinach
• Peas
• Eggplant
• Red bell pepper

Those foods should make it as easy as possible to get in as much niacin as you need, without having too many calories.