2013-02-07 23:07:14 | By. ADMINISTRATOR IT | READ 3,421 TIMES
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According to researchers at Emory University, levels of glutathione vary over a 24-hour period, spiking about six hours after each meal and hitting their lowest point in the morning hours.
Young, healthy people tend to have enough glutathione. However, glutathione levels start to decline at around age 45 and continue to decline until death.
Glutathione status may be depleted by a variety of different health conditions.
The best dietary sources of glutathione are freshly prepared meats and fresh fruits and vegetables (both raw and cooked). Most processed foods have little to no glutathione.
Some foods - such as cereals, bread, and dairy products - are not only lacking glutathione, they actually act as glutathione antagonists. Common beverages such as tea and coffee also contain glutathione -destroying compounds, although in lower concentrations.
Because cigarette smoking and excessive alcohol intake cause an increase in free radical production, both habits deplete glutathione levels.
Both prescription and over-the-counter drugs can lower glutathione status.
People who are overweight tend to have lower glutathione levels than those who are within normal weight range because excess fat is correlated with oxidative (free radical-induced) stress.