Do not prep seven different recipes unless you already enjoy that
Glutathione, as the master antioxidant and essential substrate for the GPx enzyme family, sits at the absolute center of this protection system
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
Regulations can vary by country, and in some places, they might be available for personal use