Grapefruits are rich in vitamin C that aids in improving the function of your metabolic system. Vitamin C regulates fat metabolism and aids in fat-burning.
Grapefruits also contain naringenin, a flavonoid, that has excellent antioxidant properties required for metabolism. Naringenin helps lower insulin levels in the blood. This in turn leads to balanced blood sugar levels and improved metabolism.
A 2006 study published in the Journal of Medicinal Food shows that obese people who included grapefruit, grapefruit juice and grapefruit capsules in their diet experienced significant weight loss at different levels. Insulin resistance was improved with fresh grapefruit.
Another study published in Nutrition and Metabolism in 2011 showed that combining a low-calorie diet with a glass of grapefruit juice or a snack of whole grapefruit has positive effects on energy balance, weight loss and body composition. There is also significantly greater benefits in lipid profiles.
For improved metabolism and quick weight loss, eat more fresh grapefruit with its fleshy white membranes or drink grapefruit juice with a high amount of pulp.
Note: As grapefruit juice and whole grapefruits can interact with certain prescription and nonprescription drugs, it is recommended to consult a doctor before including this fruit in your diet.
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