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Postmenopausal Women Can Lose Weight Using Black Rice Extract

A new study discovered that 12 weeks of supplementation with black rice extract can help postmenopausal women with obesity lose weight.

Postmenopausal Women Can Lose Weight Using Black Rice Extract
Photo: Women Losing Weight | InStyleHealth

For 12 weeks, 105 women who had not menstruated in over a year were randomly assigned to either black rice extract (1 g/d) or a placebo (maltodextrin, 1 g/d) supplementation.

The trial was completed by 88 women, 47 of whom were in the intervention group and 41 in the placebo group. At week 12, dual-energy x-ray absorptiometry analysis revealed that the black rice extract group had significantly lower trunk fat (p=0.04), total fat (p=0.04), and total body fat percentage than the placebo group.

Black Rice Extract To Help Lose Weight In Menopausal Women
Photo: Black Rice | InStyleHealth

The black rice extract group had a lower body fat percentage than the control group, although the difference was only marginally significant. Bioelectrical impedance study revealed no significant variations in anthropometric measurements such as weight, BMI, waist circumference, or waist-to-hip ratio.

Anthocyanidins, as well as dietary fiber, flavonoids, and other polyphenols, are abundant in black rice. Rice oil is high in plant sterols such oryzanol and contains nonatherogenic fatty acids. These bioactive components are nonglyceride, unsaponifiable components that have been linked to cholesterol-lowering benefits in both animal and human studies.

Different inflammatory cytokines, metabolic enzymes, and signaling pathways are stimulated by anthocyanins in the skeletal muscle, liver, pancreas, and adipose tissue. These, in turn, stimulate anti-inflammatory, antioxidative, and metabolic-stabilizing activity—mechanisms linked to obesity and diabetes management, improved blood pressure and cholesterol profiles, and the prevention of atherosclerosis.

Source: Menopause 2021;doi:10.1097/GME.0000000000001862

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