Niacinamide Skin Benefits for Women Over 50: How It Targets Fine Lines, Discoloration and More. Claire Brodsky. Mon, July 1, 2024 at 5:04 PM UTC. 4 min read.

One 5.8-ounce (165-gram) can of light tuna provides 21.9 mg of niacin, over 100% of the RDA for both men and women . It’s also high in protein, vitamin B6, vitamin B12, selenium and omega-3 ...