Dieticians have advised diabetes patients to choose blueberries instead of other fruits.
A diet expert specializing in diabetes care has said the little blue snacks are preferable because they carry the lowest risk of inducing a potentially dangerous sugar spike.
Some 30million Americans have type 2 diabetes – whereby the body fails to produce sufficient amounts of the hormone insulin, which helps convert sugars in food into energy.
The disease causes glucose to build up in the bloodstream, leading to blood sugar spikes which, over time, result in a host of serious complications like infected wounds and heart problems.