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Whole Grains, Especially Oats, May Lower Cholesterol
Even modest reductions in cholesterol are thought to help prevent heart disease, so heart healthy diets are an important area of research. To determine the link between whole grains and cholesterol, scientists analyzed the results of 24 randomized controlled trials (totaling 2,275 participants). They found that eating whole grains is associated with lower LDL (“bad”) cholesterol and total cholesterol, with no signiﬁcant eﬀect on HDL (“good”) cholesterol or triglycerides (a type of fat in the blood). Whole grain oats speciﬁcally seemed to be linked with the greatest cholesterol lowering eﬀects compared to other whole grain foods. The length of the study was also associated with positive changes in cholesterol, indicating health beneﬁts are greater for those who make whole grains a regular part of their daily lifestyle.
The American Journal of Clinical Nutrition. 2015 Sept;102(3):556-72. (Hollaender PLB et al.)