World Health Organization researchers published a small sample study on flax seed as a dietary supplement for diabetes.
Participants ate a tablespoon of ground flax seed every day for a month. There was a significant drop in fasting blood sugars, triglycerides, and cholesterol, as well as a drop in their A1c. Researcher’s noted that if your blood sugar is already well controlled, you may not see much additional improvement.
Why does flax seed help control blood sugar? It may improve insulin sensitivity which is a common problem in type 2 diabetics. After 12 weeks of flax seed, researchers found a small but still significant drop in insulin resistance. It might be related to a drop in oxidant stress due to the antioxidant qualities of flax seed.