Gluten is found in grains such as wheat, barely, rye, and in lesser amounts in Spelt and Kamut. There is a debate about oats. Some people can tolerate them, while others cannot.
People with Celiac Disease cannot tolerate any gluten.
Gluten damages the lining of the small intestine, thus hindering the absorption of nutrients. Most common symptoms are bowel related (gas, contstipation).
Gluten also causes inflammation, bloating, fatigue, menstral and intestinal cramps.
I do allow myslef Spelt once in a while, and oats. It is possible that I shouldn't even be eating these either.
Some of my gluten-free favourits include: Quinoa, Amaranth, Rice, Millet, Buchwheat.
Phytic acid also aggravates Endometriosis. Phytic acid is found in the bran of whole grains. It combines with nutrients in the gut, hindering absorption of iron, calcium, magnesium, copper and zinc. Whole grains and seeds also contain enzyme inhibitors which made digestion difficult. Soaking the grains from 12-24 hours (some grains need the latter) in warm, acidic water (add some apple cider vinegar/kombucha to the water) will break down these not so pleasant parts of the grain, as will sprouting. I make sure that my spelt and oats, as well as rice, and other legumes are well soaked.