While you can find glutathione in foods like avocado and asparagus, and astaxanthin in wild-caught salmon, it is difficult to reach therapeutic levels through diet alone
Importantly, both the BHE extract and its BuOH fraction increased the survival time of the tumour-bearing animals
Here are some other ways to help increase levels of glutathione, along with taking care to optimize vitamin D: limit alcohol consumption decrease exposure to POPs increase intake of other antioxidants to decrease overall oxidative stress increase intake of nutrients that promote glutathione production, such as NAC (N-acetylcysteine), 1000 mg/day, whey, or SAMe get enough magnesium and selenium in the diet, as both are necessary for glutathione production foods such as almonds, cruciferous vegetables, and even alcohol-free beer have been shown to raise glutathione levels, as has meditation
Immune Function: GSH supports immune function by modulating immune cell activity, including lymphocyte proliferation and cytokine production