The Glutathione Index measures the ratio between your “fully-loaded” glutathione and “spent” or oxidised glutathione in red blood cells.  This is the best measure of your antioxidant potential which indicates your ability to neutralise harmful oxidants created both by your body and brain’s metabolism, and from smoking and pollution.

It is not possible to accurately predict your antioxidant potential just from the food you eat.  The variation in antioxidants in, for example, a carrot is 40-fold.  While eating five portions of fruit and vegetables a day is a good maxim, whether or not you are achieving the optimal antioxidant protection from your diet and/or supplements, such as vitamin C, is reflected by your Glutathione Index.  The interpretation of your result enables you to take action to optimise your anti-aging antioxidant potential.

A desirable level is above 500.  Below 400 is an indicator that you need to increase your intake of antioxidants from food and/or supplements, and/or reduce your intake of oxidants from smoking, pollution or fried food.  Glutathione is related to the pace of aging and the activity of antioxidant enzymes which are depleted in those with cognition decline.  It is also part of your DRIfT (Dementia Risk Index functional Test) score.