Since you were a wee child, you’ve probably been told by your mother or grandmother to eat at least one egg a day to get longer, thicker hair. Those of you who heeded their advice benefited from it and ended up having lusciously long hair. This is because eggs are filled to the brim with proteins that are essential for hair growth. What is the importance of protein for hair growth? Keep scrolling to find out.
Table Of Contents
How Does Protein For Hair Growth Work?
Every single individual strand of hair on your head is 88-90% comprised of the protein keratin (1). In fact, you’ll be surprised to know that protein makes up 20% of your body. Hence, you need to get a healthy dose of protein from your daily diet to ensure that not only hair growth but also all your other body functions are regulated effectively (2), (3).
What happens when you don’t consume enough protein? Quite simply put, your body will start rationing the amount of protein available in your body and using it for more important functions like producing hormones, enzymes, and antibodies.
Since hair growth and tissue repair are not regarded as essential functions for your body’s regular functioning and survival, the supply of protein to your hair follicles is cut off. Therefore, if your protein deficiency persists for an extended period, you end up with dry and brittle hair.
The growth cycle of your hair also plays a major role in its protein requirement for growth (4). At any point in time, 90% of your hair is in the growing (anagen) phase, which lasts for around 3-5 years. Then comes the intermediate (catagen) phase that lasts for a couple of weeks, followed by resting/shedding (telogen) phase during which older hair falls out.
A protein deficiency may force a large proportion of your hair to go into the resting/shedding phase at the same time, resulting in higher than average (and pretty evident) hair loss.
What do you do when you’re faced with major protein deficiency-related hair loss and need to stop it? The quickest option is to get yourself a protein treatment.
Protein Treatments To Promote Healthy Hair Growth
Protein treatments are a popular option these days for addressing a number of hair problems, especially hair loss (5). They generally work by coating the outside of your hair follicles and strands with proteins to harden them and protect them from breakage and further damage.
Depending on how damaged your hair is, there are four protein treatments that you can choose from:
- Protein Packs: These are meant to be used on mildly damaged hair and can be applied routinely every one to two months.
- Light Treatments: These are for slightly damaged hair and can also be used routinely. They are often sold as ‘conditioning masks.’
- Deep penetrating Treatments: These are designed to deeply moisturize moderately damaged hair and can be used every two weeks.
- Reconstructors: If you heat style your hair daily or have undergone hair color treatments, chances are you have severely damaged hair and need to use reconstructors every one to two weeks.
Though protein treatments can strengthen your hair externally, you need to nourish your hair follicles from within to fully protect it. The only way to do that is by adding more protein to your diet.
How Can You Get More Protein In Your Diet?
Let’s start this out by dispelling a misconception. Many people believe that eating high-protein foods can make them gain weight as they are also high in calories and fats. But that could not be further from the truth. There are tons of protein-rich foods out there that can boost your hair’s health without making you pile on the pounds.
Another misconception about protein is that you can only get it from meat. However, the truth is that there are tons of vegetarian and vegans foods that are high in protein. Let’s take a look at the most popular protein-rich foods that you can add to your daily diet!
1. Non-Vegetarian Options
- Eggs: Eggs are packed with not only protein but also antioxidants, fatty acids, vitamins, and minerals. Interestingly, egg whites are almost 100% protein (6).
- Chicken Breast: Chicken breast (without the skin) is one of the healthiest protein-rich foods that you can add to your diet (7).
- Lean Beef: This delicious meat is rich in protein, iron, and vitamin B12 (8).
- Tuna: Besides being high in protein and omega-3 fatty acids, tuna is also low on fats and calories (9).
- Turkey Breast: Skinless turkey breast is also high in protein and low in calories and fats (10).
- Fish: Fish of all types are full of protein and heart-healthy omega-3 fatty acids (11).
- Shrimp: Add shrimp to your daily diet if you want to consume more protein, vitamin B12, selenium, and omega-3 fatty acids.
2. Vegetarian Options
- Lentils: Lentils are one of the best sources of plant-based proteins in the world. They are also rich in iron, potassium, folate, manganese, and fiber (12).
- Almonds: These amazing dry fruits are filled with protein, vitamin E, manganese, and fiber (13).
- Oats: Add these healthy grains to your diet to get your daily dose of protein, vitamin B1, magnesium, manganese, and fiber (14).
- Broccoli: Many people may find broccoli unpalatable, but they probably don’t know that it is full of protein, potassium, vitamin C, vitamin K, and fiber (15).
- Quinoa: This trendy superfood grain is filled with protein, vitamins, minerals, antioxidants, and fiber (16).
- Ezekiel Bread: This interestingly named bread is made of wheat, barley, millet, soybeans, lentil, and spelt. It contains protein and fiber.
- Pumpkin Seeds: This light and healthy snack contains protein, iron, zinc, and magnesium (17).
- Brussels Sprouts: Brussels sprouts contain protein, vitamin C, and fiber (18).
- Peanuts: Peanuts are a delicious source of protein, magnesium, and fiber. You could also have peanut butter to increase your protein intake (19).
3. Dairy Options
- Cottage Cheese: This healthy cheese is filled with protein, calcium, phosphorus, and B vitamins (20).
- Greek Yogurt: This tasty treat is quite high in protein, but make sure you pick one that does not have any added sugar (21).
- Milk: This daily staple is chock-full of protein, calcium, riboflavin, and phosphorus (22).
Adding or increasing your consumption of protein-rich foods can certainly improve your hair’s health and boost hair growth. But they are also essential for carrying out some of the most important functions in our body. Here are a few major ones that you need to know about.
Additional Health Benefits Of Protein
- Protein is often referred to as the building block of the body. This is because it is essential for the growth, maintenance, and repair of tissues, muscles, and organs in our body (23).
- Along with carbohydrates, protein is also a major source of energy for our body.
- Protein is involved in the production of some of the most important hormones in our body, like insulin (23).
- Proteins also play a role in the production of enzymes that are responsible for almost all the chemical reactions in our body.
- Haemoglobin is primarily made up of protein and is used to transport oxygen throughout our body (24).
- Proteins help in the formation of antibodies that fight against all kinds of infections, illnesses, and diseases.
Now that you know the wonder that protein can work on your hair’s health and growth, you absolutely need to start consuming more of it every day. Try it out and comment below to let us know what sort of improvement you saw in your hair!
Expert’s Answers for Readers Questions
Can protein make your hair grow?
Yes, protein can make your hair grow like the hair itself is primarily made up of the protein keratin.
Can a lack of protein cause hair loss?
Yes, a lack of protein can lead to hair loss.
How do you know if your hair needs protein or moisture?
Pick up one strand of your hair and wet it with water. Now, gently stretch it. If it springs back to its original length and does not break when you leave it, your hair has optimum levels of protein and moisture. If it stretches and breaks, it is in need of more moisture and protein.
- Yang, Fei-Chi et al. “The structure of people’s hair.” PeerJ vol. 2 e619.
- Guo, Emily L, and Rajani Katta. “Diet and hair loss: effects of nutrient deficiency and supplement use.” Dermatology practical & conceptual vol. 7,1 1-10.
- Almohanna, Hind M et al. “The Role of Vitamins and Minerals in Hair Loss: A Review.” Dermatology and therapy vol. 9,1 (2019): 51-70.
- Wang, Lei et al. “Differential Expression of Proteins Associated with the Hair Follicle Cycle – Proteomics and Bioinformatics Analyses.” PloS one vol. 11,1 e0146791.
- Gavazzoni Dias, Maria Fernanda Reis. “Hair cosmetics: an overview.” International journal of trichology vol. 7,1 (2015): 2-15.
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- Marangoni, Franca et al. “Role of poultry meat in a balanced diet aimed at maintaining health and wellbeing: an Italian consensus document.” Food & nutrition research vol. 59 27606.
- Zanovec, Michael et al. “Lean beef contributes significant amounts of key nutrients to the diets of US adults: National Health and Nutrition Examination Survey 1999-2004.” Nutrition research (New York, N.Y.) vol. 30,6 (2010): 375-81.
- Renuka, Vijayakumar et al. “Studies on chemical composition of yellowfin tuna (Thunnus albacares, Bonnaterre, 1788) eye.” Journal of food science and technology vol. 54,6 (2017): 1742-1745.
- TURKEY BREAST, FoodData Central, U.S. Department of Agriculture.
- Tørris, Christine et al. “Nutrients in Fish and Possible Associations with Cardiovascular Disease Risk Factors in Metabolic Syndrome.” Nutrients vol. 10,7 952.
- Pesta, Dominik H, and Varman T Samuel. “A high-protein diet for reducing body fat: mechanisms and possible caveats.” Nutrition & metabolism vol. 11,1 53.
- Nuts, almonds, FoodData Central, U.S. Department of Agriculture.
- Rasane, Prasad et al. “Nutritional advantages of oats and opportunities for its processing as value added foods – a review.” Journal of food science and technology vol. 52,2 (2015): 662-75.
- Broccoli, raw, FoodData Central, U.S. Department of Agriculture.
- Filho, Antonio Manoel Maradini et al. “Quinoa: Nutritional, functional, and antinutritional aspects.” Critical reviews in food science and nutrition vol. 57,8 (2017): 1618-1630.
- Kim, Mi Young et al. “Comparison of the chemical compositions and nutritive values of various pumpkin (Cucurbitaceae) species and parts.” Nutrition research and practice vol. 6,1 (2012): 21-7.
- Brussels sprouts, raw, FoodData Central, U.S. Department of Agriculture.
- Arya, Shalini S et al. “Peanuts as functional food: a review.” Journal of food science and technology vol. 53,1 (2016): 31-41.
- Cheese, cottage, creamed, large or small curd, FoodData Central, U.S. Department of Agriculture.
- Moore, J Bernadette et al. “Evaluation of the nutrient content of yogurts: a comprehensive survey of yogurt products in the major UK supermarkets.” BMJ open vol. 8,8 e021387.
- Davoodi, Seyed Hossein et al. “Health-Related Aspects of Milk Proteins.” Iranian journal of pharmaceutical research : IJPR vol. 15,3 (2016): 573-591.
- Wu, Guoyao. “Dietary protein intake and human health.” Food & function vol. 7,3 (2016): 1251-65.
- Billett HH. Hemoglobin and Hematocrit. In: Walker HK, Hall WD, Hurst JW, editors. Clinical Methods: The History, Physical, and Laboratory Examinations. 3rd edition. Boston: Butterworths; 1990. Chapter 151.
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