Health Benefits Of Grapefruit

Prevents Insulin Resistance

Studies on grapefruits effects on insulin for individuals with diabetes and obese individuals have found it to help prevent insulin resistance. This is thanks to the low glycemic index of the grapefruit, at around twenty-five. This means it does not raise blood sugar as quickly or as much as foods with a high glycemic index, like a white bagel (at seventy-two), a banana (at forty-eight), or a watermelon (at seventy-two). The highest glycemic index food can have is one hundred. A study published in the Journal of Medicinal Food in 2006, determined individuals who consumed grapefruit juice or half of a grapefruit before a meal had lower insulin spikes two hours later as compared to the placebo group. Fresh grapefruit caused less insulin resistance.

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