Recently avocados have been recognized as a good source of two beneficial compounds: beta-sitosterol and glutathione. Beta-sitosterol is a widely prescribed anti-cholesterol drug that interferes with cholesterol absorption, thus promoting lower cholesterol levels. Laboratory analysis has shown that avocados contain 76 mg of beta-sitosterol per 100 g of raw, edible fruit. This is four times the amount found in oranges that had previously been cited as the richest fruit source of beta-sitosterol.
Glutathione is made up of three amino acids, glutamic acid, cysteine, and glycine that function as antioxidants. Studies have revealed that avocados contain 17.7 mg of glutathione per 100 g of raw edible fruit. This is more than three times the amount in any other fruit. Studies have revealed a strong correlation between increased glutathione intake and decreased risk of oral and pharyngeal cancer. The decreased risk only occurred when the glutathione came from raw fruits and vegetables.
An article in the January 2001 issue of Prevention discusses the benefits of avocados for both skin and hair. Mashing an avocado and rubbing it into your hair for five minutes after washing will add luster to your hair. Avocado oil can be applied to the skin to relieve itchy, red, or irritated areas caused by eczema or dermatitis.
In South Africa, an avocado mask made of mashed avocados, honey, and lime juice is applied to the face as a moisturizing treatment to counteract the drying effects of the hot sun.
