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Blue Lupin Dietary Fiber May Boost Colon Health

The results of research into the effects of dietary fiber on colon health have been contradictory. A recent study has been released suggesting that this may be due to the fact that different dietary fibers have different effects on colon health, and that dietary fiber derived from blue lupin boosts colon health.

Participants in the study included 92 people who were recruited and 76 who actually completed the trial. They were split into three groups. Half of the participants in each group took 25 grams of legume fiber (blue lupin, white lupin, and soya) while the other half took the same amount of citrus fiber every day for two weeks.

Following a two-week washout period, each participant switched over to the other intervention.

The researchers found that the blue lupin fiber increased daily fecal weight by 1.76g and fecal dry matter by 1.64 g per gram of additional dietary fiber. Both blue and white lupin also increased levels of short-chain fatty acids (SCFAs), which are an energy source for cells that line the colon. Higher levels of SCFAs result in lower pH value, which hinders the formation of carcinogenic substances.

Researchers from Friedrich Schiller University of Jena in Germany conducted the study. It was published on July 16, 2013, in Nutrition Journal.

Previous studies have linked fiber consumption with lowering total cholesterol and LDL cholesterol, regulating blood sugar for people with diabetes and breast cancer prevention.

Soluble fiber can be found naturally in oats, peas, beans, apples, citrus fruits, carrots, barley and psyllium. Insoluble fiber can be found in whole wheat and grains, brown rice, fruit, broccoli, cabbage and dark leafy vegetables.

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