Take Yangshengtang brand B vitamin tablets as an example. The content of vitamin b 1 in Yangshengtang brand B vitamin tablets is 6.5 mg. What is said here is the amount of vitamin b 1 contained in each tablet. The content of vitamin b2 is also 6.5 mg, and the content of vitamin B6 is also 6.5 mg. Yangshengtang brand B vitamin tablets also contain folic acid and biotin, and the content of nicotinamide is also rich. Nicotinamide 30 mg, pantothenic acid content 12.5 mg. B vitamins have a very good health care function, which is very suitable for adults, but not for children or pregnant women and lactating women. It is better for everyone to take one tablet orally every day when taking it. What is the content of vitamin B complex? A tablet of vitamin B contains 6.5 mg of vitamin b 1, and it is also rich in vitamin b2, vitamin b6 and nicotinamide, among which the content of nicotinamide is 30 mg.