No matter what phase of the diet plan you’re on, drinking green tea is a tasty, natural way to manage your blood sugar, according to an analysis of 17 studies of green tea published in the American Journal of Clinical Nutrition. It linked this fragrant tea to lowering both fasting levels of blood sugar and levels of HbA1c, which indicates the presence of long-term glucose in the blood. One study even found that green tea increases the body’s ability to burn fat! Studies have shown that four cups a day brings the most benefit. Switch that kettle on!