Sunshine may slow down type 2 diabetes progression, weight gain

The power of ultraviolet light (i.e., sunshine) may be able to slow down the progression of type 2 diabetes and prevent weight gain, according to a new study published in Diabetes.

Testing the effects of UV light on overfed mice, researchers found that the rodents displayed fewer signs of type 2 diabetes, like abnormal blood glucose levels or insulin resistance. Additionally, UV-exposed mice seemed to gain less weight, despite being overfed.

Vitamin D production didn't appear to play a role in the effects, the study reported, as nitric oxide was likely the cause - which is released by the skin after being exposed to sunlight.

A sunshine cure?

The researchers say the results should be viewed "cautiously," since mice are nocturnal and, therefore, not typically exposed to sunlight.

Further research would be needed to determine how UV therapy might be helpful for humans.

Dr. Shelley Gorman, lead author of the study, said the findings suggest that advice about sun exposure ought to be more balanced.

"[The findings] suggest that casual skin exposure to sunlight, together with plenty of exercise and a healthy diet, may help prevent the development of obesity in children," Gorman said.

Source: BBC