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How Much Protein to Prevent Hair Loss?

by
author image Debra McKenzie
Based in Chapel Hill, N.C., Debra McKenzie has been writing since 2001. Her work has appeared in journals, including "JADA" and "Obesity Research," and in the textbook "Nutrition in the Prevention and Treatment of Disease." She holds a Master of Science in nutrition from University of Vermont and completed her dietetic internship at Meredith College.
How Much Protein to Prevent Hair Loss?
A bowl of almonds. Photo Credit GooDween123/iStock/Getty Images

Approximately 90 percent of hair is in the growth phase, while 10 percent is in a resting or dormant stage at any given time. After the resting phase, hair strands fall out and new ones grow in. Daily hair loss of around 50 to 100 hairs per day is typical. Millions of people suffer from excess hair loss, which may be due to illness, genetics or poor nutrition. Consuming inadequate amounts of protein can be a cause of excess hair loss.

Hair Growth

Hair is made from protein. When the body does not get enough protein, it rations it by shutting down the production of non-essential protein, including hair growth. Hair loss is noticeable about two to three months after protein intake drops below requirements. Hair growth will begin again once protein intake meets needs.

Protein Requirements

The Centers for Disease Control and Prevention notes normal recommendations are about 10 to 35 percent of total daily calories from protein. This is about 46 to 56 g of protein for adults depending on caloric needs. Healthy individuals consuming a typical American diet do not have to be concerned about protein intake, as most get more than enough.

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Sources of Protein

Protein can be found in most foods including: dairy products, meat, poultry, fish, eggs, nuts, seeds, beans, grains, soy products, and small amounts in vegetables and fruits. A 1 oz. serving of foods from the protein group provides around 7 to 8 g of protein. Based on My Pyramid, a 1 oz. serving equivalent includes: 1 oz. meat, fish or poultry; 1 egg; 1 tbsp. peanut butter; ½ oz. nuts or seeds; or ¼ cup dried beans and peas.

Other Causes of Hair Loss

High levels of vitamin A, low levels of iron, malnutrition due to eating disorder, thyroid disease, high fever, infection, stress or just simply losing weight can cause hair loss. Hair loss can most often be stopped and reversed once treated, so see your doctor if hair loss continues or you begin to notice areas of thinning.

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