Biotin, also known as Vitamin B7, is an essential nutrient that supports healthy hair growth and helps prevent hair loss. It plays a vital role in producing keratin, a protein that strengthens hair strands and improves overall hair health. Many people struggle with thinning hair, and incorporating biotin-rich foods into their diet can be an effective natural solution. But what are the best biotin rich foods for hair growth & hair loss? Eggs are one of the richest sources of biotin. The yolk, in particular, is packed with this nutrient, promoting strong and shiny hair.