Only eating breakfast and lunch may be more effective at managing type 2 diabetes than eating smaller, more regular meals, scientists say.
Researchers in Prague fed two groups of 27 people the same calorie diet spread over two or six meals a day.
They found volunteers who ate two meals a day lost more weight than those who ate six, and their blood sugar dropped.
Experts said the study supported "existing evidence" that fewer, larger meals were the way forward.
Type 2 diabetes occurs when the body does not produce enough of the hormone insulin, which controls the amount of sugar in the blood, meaning blood sugar levels become too high.