Vitamin D and Vitamin A are essential co-partners in immunological and bone health., I’m particularly excited about vitamin A because of its profound effects on the gut mucosal immune system—a specialty of mine. Just as vitamin D has attracted attention for its ability to increase antimicrobial peptides and help us defeat pathogens, it’s fascinating to me that vitamin A is also essential for the very tissues that protect us from the same pathogens.
The availability of vitamin A in our food is a key factor in a tolerant, highly functional immune system. To quote from the title of a brilliant commentary in the March 2008 issue of Nature’s Mucosal Immunology, “Vitamin A rewrites the ABCs of oral tolerance.”
In 1980, wholesale grain lobbyists, led by the American Bakers Association, began an experiment on our food supply—one that would have far reaching effects on our lives and our health. They would engage in a “super-enrichment” of our food supply, and hardly anyone noticed.
Below, we will show that this health experiment artificially normalized our appetites for foods that we should have lost our appetites for—and it ultimately contributed to the American obesity epidemic in a way that few obesity researchers have ever considered.
This will be a short chapter, but after you’re finished with it, you will know more about vitamins than 95% of clinical nutritionists, doctors, supplement sales force, or bodybuilders. If that sounds arrogant or overstated, it really isn’t my fault. I’m just a messenger; a purveyor of information. Either I’m right or the 95% are right; can’t be both.