Sugar - You didn't even know you were a drug addict

When you look at the huge increase in sugar in our diets this past century — particularly in processed foods — you see that it marches in step with the epidemic increase in metabolic diseases. According to the US Department of Agriculture, the average American is supplied with 140 pounds of caloric sweeteners per year. That’s 43 teaspoons for every man, woman and child every day! The USDA recommends an average of 10 teaspoons a day for a healthy adult (still too much for most women, in my book). The biggest sources are the corn sugar and corn syrup found in beverages like juice drinks and soda.

Excess sugar consumption also upsets the balance of intestinal flora in your digestive tract and can cause symptoms of intestinal distress such as bloating, cramping, and gas (for more on this, see our section on digestion). Other symptoms of sugar sensitivity are headaches, insomnia, aggression, panic attacks, irritability, mood swings, and depression. Too much sugar can deplete levels of serotonin, the neurotransmitter whose deficiency is linked to depression. What’s worse, low levels of serotonin actually trigger more sugar cravings.

Long-term sugar intolerance leads to type 2 diabetes and other complications like obesity and inflammation. Drinking more than one soda a day raises your risk of serious weight gain by 80%.

Damn.