Antioxidant activity: from model to man

Oxygen is toxic. Our cells are continuously attacked by reactive forms of oxygen (oxidants). For our protection we have anti-oxidants, which we extract from food or which the cells produce themselves. Anti-oxidants work in various ways. This dissertation describes a method that allows a good determination of the anti-oxidant activity. To be able to offer protection, the anti-oxidant has to be absorbed by the body. This was tested in test persons who took apples, fruit salad and a fruit drink.
It turned out that the fruit salad and the fruit drink protect against the toxicity of oxygen. Apples are less effective.