Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Banaba (Lagerstroemia speciosa) has been traditionally used in Southeast Asian medicine for the management of diabetes and metabolic disorders. Scientific interest in banaba centers on its active constituents, particularly corosolic acid, which has demonstrated hypoglycemic effects in several preclinical and clinical studies. Banaba extract has been shown to improve insulin sensitivity and glucose uptake, reduce blood sugar levels, and support weight management—key components relevant to Metabolic Syndrome. Several small-scale human trials and animal studies have reported reductions in fasting blood glucose, improvements in lipid profiles, and potential anti-obesity effects. For example, a few randomized controlled trials found that corosolic acid supplementation led to modest reductions in blood glucose among people with type 2 diabetes or impaired glucose tolerance. However, these studies often have methodological limitations, including small sample sizes, short durations, and lack of rigorous controls. While the mechanistic data are promising and support its traditional use, the overall quality and quantity of clinical evidence remain moderate. Consequently, banaba is considered a promising adjunct for Metabolic Syndrome support, but more robust, large-scale human studies are needed to confirm its efficacy and safety. Thus, the use of banaba for Metabolic Syndrome is supported by both tradition and a moderate level of scientific validation.

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Nature's Sunshine Cortisol Formula (Nature's Cortisol Formula)
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