Vitamin B2 - Riboflavin

Riboflavin—vitamin B2—is a critical vitamin for overall health, supporting metabolism (especially fat metabolism), iron metabolism, eye health, and methylation while preventing oxidative stress. It’s present in a varied diet, with good sources including greens, seeds and nuts, eggs, and lean meats and fish. It can be taken supplementally and is usually part of a multivitamin. There’s no known toxicity of high doses, though most supplements have way more than the RDA (sometimes more than 100 times). The RDA is 1.1 to 1.3 mg; many people may need more than that by 2x or 5x. The best way to know if you need riboflavin is to test for it!