Does caffeine interfere with blood sugar?

Research in the US indicates that diabetics who drink tea and coffee every day increase their blood sugar levels. Dr James Lane, of Duke University Medical Center in Durham, North Carolina, says when his study participants consumed caffeine, their average daily sugar levels went up eight per cent. The findings, which appear in Diabetes Care, add to a growing body of research which suggests eliminating caffeine from the diet might be a good way to manage blood sugar levels.

The Daily Telegraph