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5 At one time, it was theorized that there was a single hormone responsible for this activity, but it was discovered that two hormones secreted from the intestines are primarily responsible for the incretin effect, GLP-1 and glucose-dependent insulinotropic polypeptide (GIP)
Foods naturally rich in glutathione Some foods contain high levels of glutathione and can provide it directly, but the compound is not absorbed well through the gastrointestinal tract, because digestive enzymes break it down into amino acids
Journal of the International Society of Sports Nutrition 2 , 3844, doi:10.1186/1550-2783-2-2-38 (2005)
Synergistic Effects: Combined GLP-1/GIP therapies are being researched for their potential synergistic benefits in weight loss and metabolic control
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