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Oats (Avena sativa L.) are a widely consumed functional cereal grain worldwide and have recently gained increasing attention due to their numerous health benefits. Oats are an excellent natural source of bioactive compounds, including β-glucan, and have broad application prospects for the development of functional foods or health products to prevent and treat of diabetes. In this review, oat bioactive compounds, including proteins, peptides, amino acids, β-glucans, resistant starch, dietary fibers, polyunsaturated fatty acids, vitamins, minerals, polyphenols, avenanthramides, oat saponins, and β-sitosterol are summarized, and their important biological functions are discussed, focusing on the relevant mechanisms of action. Due to their various bioactive ingredients, oats exhibit antioxidant, anti-diabetic, anti-microbial, anti-cancer, anti-hypertensive, immunomodulatory, anti-hyperlipidemic, anti-obesity, and cardioprotective properties. [ABSTRACT FROM AUTHOR]

The nutritional value of Tartary buckwheat is much higher than that of common buckwheat. Tartary buckwheat is rich in nutrients, some of them unique, and has good medicinal properties. It also serves as a good feed crop. This review aims to provide an up-to-date and comprehensive literature on Tartary buckwheat's active substances (proteins, polyphenols, D-chiro-inositol, fat-soluble substances, resistant starch, dietary fiber, minerals and vitamins), medicinal value (e.g., prevention of AIDS, and prevention and treatment of cancer, and cardiovascular and cerebrovascular diseases) and nutritional effects (as an antioxidant, in lowering blood pressure, blood fat, and blood sugar, for detoxification and weight loss), etc., and research activities connected to Tartary buckwheat and its health effects in China and abroad. This review is expected to present a reference for the further development and utilization of Tartary buckwheat. [ABSTRACT FROM AUTHOR]