Monday, June 29, 2009

More on Eggs ... Food for the Hair

Eggs are a good source of protein, biotin, vitamin B-12, and methylsulfonylmethane (MSM) making them a great food to consume for hair health. Here is some hair-related information about the nutrients they contain:

"Protein deficiency causes a reduction in the linear rate of growth in the hair and in the diameter of the hair shaft, which causes the hair to shed easily." Hair requires protein since it is largely composed of keratin.

Biotin is involved in amino acid metabolism. As many of us learned in Biology class, amino acids are the building blocks for protein. Biotin is "essential to grow new hair".  It is the egg yolk that is particularly high in biotin.   NOTE: Eating raw egg whites can actually be a catalyst for a biotin deficiency. This is because avidin in the egg whites binds to biotin and prevents it from being distributed properly.  To avoid this, cook the egg (which denatures the avidin) as opposed to eating it raw.

Vitamin B-12 is "a nutrient hair just can't live without, and women can easily develop a deficiency".

The sulfur found in MSM is another critical "component of the manufacturing process of hair". More specifically, sulfur is needed for disulfide bonds which link keratins together in the hair strand.

NOTE: According to one study (see below), eating up to one egg a day is "unlikely to have substantial overall impact on the risk of coronary heart disease or stroke among healthy men and women".  However, if you have health problems or a family history of health problems, please speak with your doctor before changing your diet.


SOURCES & MORE READS:
HAIR NUTRIENTS
TOP 10 HAIR FOODS
EATING FOR HAIR HEALTH
NUTRITION DATA FOR 1 LARGE EGG
EGGS & HEART DISEASE
DISULFIDE BONDS
HAIR BIOLOGY

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