What does oxidative damage look like? If you leave something out in the rain, like a metal, it gets rusted. That’s oxidative damage. If you cut an apple and you put it outside in the sun, it gets oxidative damage, it turns brown.  If we're constantly eating many enormous, heavy meals, then the digestive process places a serious strain on the system and free radicals are generated.  And this ages us from within. It hits every cell, our DNA, it causes mutations and it basically ages us from within. It’s kind of like rusting from within. So, oxidative damage is really from free radicals. It’s one of the processes that ages us the most.  The best way to fight oxidation is by eating smaller, lighter meals with anti-oxidants.  And these are natural vitamins and some minerals and phytochemicals that are found in food and sometimes in supplements. They include vitamin C; the famous ones are vitamin C, vitamin E, the very underrated trace mineral selenium. Zinc is an antioxidant, and just dozens and dozens, of them in the plant kingdom that come under all kinds of categories, like flavonoids and phenols and all these things help fight oxidation so that they can do damage control on the oxidation.