Maintaining a balanced diet, with fruit and VEGETABLES will help your hair improve little by little. Avocados: They are rich in vitamins B12 and E, which can improve the quality of hair strands. Avocados can also help activate collagen and elastin production if applied topically to the hair and scalp. Carrots: Carrots are rich in beta-carotene, which is converted in the body to vitamin A. Vitamin A not only helps preserve good vision and strengthens the immune system, it is also good for hair and skin. Additionally, carrots contain biotin, which helps promote hair growth. Spinach: Spinach is rich in iron. And if we talk about iron, we are talking about an essential mineral for hair growth. Iron facilitates the circulation of blood and all the nutrients necessary for our hair to grow strong and healthy. Onion: Onion has its share of vitamins C and B, calcium, magnesium, potassium, iron and phosphorus, and also silicon, which helps calcium absorption, and sulfur, which participates in the formation of keratin and collagen. Tomato: Vitamin C in its purest form; It does not reach the levels of an orange or a lemon, which provide around 80-85% of all the vitamin C that must be taken per day, but tomatoes do not fall short with 25%. They also provide a few essential minerals (magnesium, manganese, phosphorus and potassium), some vitamin B and lots and lots of water, up to 94.5% in each tomato.