The grapefruit diet has been around for more than eight decades and for weight loss, it has been proven to be a highly effective diet. In data released from a study conducted by Shriners Hospital in Boston, it was suggested that grapefruit is more beneficial than first thought by fighting diabetes.
In another new study at the University of California-Berkeley, which involved laboratory mice, it was shown that grapefruit has the ability to fight diabetes. By drinking grapefruit juice rather than water, the onset of this disease can be stopped. Researchers associated with the study agree that the outcome surpassed expectations.
As part of the study, researchers found that mice who drank grapefruit instead of sweetened water gained less weight. However, the mice also had improved metabolism, to include lower levels of blood sugar. In addition, insulin sensitivity was affected, which in the battle against diabetes is crucial.
Laboratory mice were split into six groups. Of these, one was provided with water with artificial sweetener added and the other five given grapefruit juice with artificial sweeteners since mice do not like drinking grapefruit juice. To match the level of saccharin, water for the one group of mice was sweetened equally.
Some of the mice were given a 60% fat diet for 60 days while others had a diet consisting of 10% fat for a period of 10 days. In addition to the amount of food being the same across the board, all groups consumed identical amounts of water and grapefruit juice.
From this, researchers discovered that the laboratory mice given the grapefruit juice coupled with the higher fat diet gained 18% less weight compared to the group of mice who drank the sweetened water and ate the same higher fat content diet.
In addition to less weight gain, experts found that the mice offered grapefruit juice had lower blood glucose levels of 13% and lower insulin levels of 17%. Scientists suggest the chemical naringenin found in grapefruit is the key.
Naringenin possesses anti-inflammatory properties but also induces a chemical reaction known as beta oxidation. These properties work in much the same way as two of the primary drugs used to treat Type 2 diabetes and increase protein activity of PPAR gamma and PPAR alpha in cells.
Although researchers believe additional studies are needed to bolster the results and gain more insight into how grapefruit fights diabetes, the outcome of this latest study is hopeful.