Here is one theory about coconut oil that is proven.
Used externally, it is good for your skin and hair.
Coconut oil is often found in moisturizers and lotions. Coconut oil can be used on dry skin, alleviating flaking and itching. Coconut oil can also ease the discomfort that comes from eczema, diaper rash, ringworm and athlete's foot. This is because one of coconut oil's active ingredients, lauric acid, is not only an antiviral, is an antifungal as well.
And coconut oil is not just good at treating itchiness caused by dry skin. It is the main ingredient in chick-chack, a natural treatment for pediculosis, the resulting skin irritation from lice infestation. In fact, coconut oil is said to better - at 90 percent effective - than any chemical lice treatment.
But even in the area of skin care, there are some questionable claims about coconut oil. Some say it helps treat acne, one supplier even suggesting acne sufferers rub in a paste of coconut oil and tumeric. While that may not work, the user will at least smell tasty. One researcher found that in some cases of acne, using coconut oil will actually exacerbate the problem. And while some claim that coconut oil can help reduce the heartbreak of psoriasis, a study showed no effect.