The sources of D-Biotin mainly include the following:
1. Natural food sources
Animal food:
Liver: such as pig liver, beef liver, etc., are very rich in D-Biotin.
Meat: pork, beef, etc. also contain a certain amount of D-Biotin.
Eggs: egg yolks, in particular, are a good source of D-Biotin.
Fish: Some fish such as salmon and mackerel also contain D-Biotin.
Plant foods:
Nuts and seeds: such as sunflower seeds, sesame seeds and peanuts contain D-Biotin.
Grains: grains such as oats and wheat also contain some amount of D-Biotin.
Vegetables: green leafy vegetables such as spinach, lettuce and broccoli are good sources of D-Biotin.
Mushrooms: certain types of mushrooms also contain D-Biotin.
2. Synthesis by intestinal bacteria
Certain bacteria in the human intestinal tract have the ability to synthesize D-Biotin, and the D-Biotin synthesized by these bacteria can satisfy the human body’s needs to a certain extent.