Here are some foods that can help with hair growth and thickness:

1. Eggs: Eggs are rich in protein, which is essential for strong, thick hair. They also contain biotin, which is important for hair health.

2. Fatty fish: Salmon, herring, and mackerel are excellent sources of omega-3 fatty acids, which have been linked to hair growth in several studies. They are also a great source of protein, selenium, vitamin D3, and B vitamins, all of which may help promote strong and healthy hair.

3. Berries: Berries are loaded with beneficial compounds and vitamins that may support hair growth. This includes vitamin C, which aids collagen production and iron absorption, two factors that may promote hair growth.

4. Spinach: Spinach is a healthy green vegetable that’s loaded with beneficial nutrients like folate, iron, and vitamins A and C, all of which are important for hair growth.

5. Nuts and seeds: Nuts and seeds are good sources of protein, healthy fats, and vitamins and minerals that are important for hair health. For example, chia seeds, flax seeds, and walnuts are high in plant-based sources of omega-3 healthy fats which could help hair growth thicker.

6. Carrots: Carrots are a rich source of vitamin A, which is essential for the growth of body cells, including hair. This makes it a perfect food for hair growth faster. It also enhances sebum production in the scalp, which keeps the hair hydrated and healthy.

7. Whole grains: Whole grains are a good source of biotin, iron, and zinc, which are important for hair health. They also contain fiber, which can help improve digestion and nutrient absorption.

8. Soybeans: Soybeans are one of the best sources of spermidine, a compound that may prolong the active phase of hair growth.

9. Avocado: Avocado is a good source of healthy fats, vitamins, and minerals that are important for hair health. It contains vitamin E, which is an effective method for treating hair loss.

10. Cinnamon: Cinnamon is a spice that has been shown to improve blood circulation, which can help deliver nutrients to the hair follicles and promote hair growth.

Its important to note that a healthy diet alone may not be enough to prevent hair loss or promote hair growth. Other factors, such as genetics, hormones, and medical conditions, can also play a role. If you are experiencing hair loss or other hair-related issues, its best to consult with a healthcare professional.