As a spice, clove confers significant nutritional benefits. According to nutrition data, one teaspoon of ground cloves contains 30 percent of the RDI of the mineral manganese, 4 percent of the RDI of vitamin K, 3 percent of the RDI of vitamin C, and trace amounts of calcium, magnesium, and vitamin E. It is also a good source of fiber. Vitamin C and eugenol are both antioxidants which can help slow the development of chronic disease. Manganese is important to bone health. According to a 2019 pilot study, significant reductions were found in the glucose levels of healthy volunteers who ingested a polyphenolic clove extract, building off of promising results in preclinical studies regarding the effect of clove on helping to regulate blood sugar.
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