Here are 10 Reasons not to eat wheat taken from Dr William Davis BlogWheatBellyBlog:

There are plenty of reasons to never allow your lips to meet a wheat bagel, sandwich, or pretzels again. But here are the top 10 most compelling, powerful reasons to tell the USDA and other providers of dietary advice to bug off with their “healthy whole grains” advice.

1. Gliadin derived opiates (from partial digestion to 4- and 5-amino acid long fragments) increase appetite substantially–as do related proteins from rye, barley, and corn. This is a big part of the reason grains make you gain weight.
2. Gliadin derived opiates are mind active drugs that trigger behavioral outbursts in kids with ADHD and autism, mania in bipolar illness, paranoia in schizophrenics, 24 hour a day food obsessions in people prone to bulimia and binge eating disorder.
3. Gliadin, when intact, initiates the processes of autoimmunity leading to rheumatoid arthritis, type 1 diabetes, multiple sclerosis, psoriasis, and 200 other conditions.
4. Amylopectin A raises blood sugar to high levels, higher, ounce for ounce, than table sugar.
5. Wheat germ agglutinin is a potent bowel toxin.
6. Wheat germ agglutinin blocks gallbladder and pancreatic function (via blocking the receptor for cholecystokinin).
7. Phytates block absorption of all positively-charged minerals–such as iron, zinc, and magnesium
8. Multiple allergens are present–such as trypsin inhibitors, thioreductases, alpha amylase inhibitors, and gamma gliadins, responsible for asthma, skin rashes, and gastrointestinal distress.