Glutathione precursors such as glycine, glutamic acid and cysteine should naturally be consumed through our diet. The best vegetable sources include avocados, onions, spinach, & asparagus. Herbs such as turmeric have also been shown to boost glutathione content. Unfortunately, vegetable sources are still very low in these critical amino acids.
The best food sources are through high quality, non-denatured animal products. These include non-denatured grass-fed whey protein and cultured, raw grass-fed dairy products and raw, organic eggs. These cultured, raw grass-fed dairy products are an incredibly good source of highly bioavailable amino acids and offer more cysteine than any other food source. Our Gut Healing Protein has a number of both food and supplemental factors to support glutathione levels.