Many studies of grains examine how the consumption of a wide variety of grain-containing foods impacts health. Below is a small sampling of studies that investigated the impact of wheat.
- A double-blind, randomized, crossover study of 31 adults compared the digestive impact of whole wheat to that of wheat bran. The study, which was published in the peer-reviewed British Journal of Nutrition, found that the amount of bifidobacteria, which protect the intestines against a host of potentially serious infections, was significantly greater when the subjects were eating whole grains. The results were similar when researchers tested for lactobacilli, another friendly probiotic which helps keep the intestines healthy and aid digestion. Find the full study here.
- A randomized, crossover, intervention study of 28 overweight men compared bowel health in those who ate low-fiber cereal to those who ate high-fiber rye and wheat foods for four weeks. The study, which was published in the peer-reviewed American Journal of Clinical Nutrition, found that high-fiber rye and wheat foods increased stool output 33 to 36 per cent and reduced post-meal insulin levels by 46 to 49 percent.Find the full study here.