Eating carbohydrates late at night is, as we all should know, real bad news for our digestive systems and for putting on weight – right?
The hypothesis behind the assertion that ingesting carbohydrates at night is based on the fact – well, supposed fact – that as you approach bed time your metabolism begins to slow down and thus during sleep your digestive system is also likely to be in a low power state. As you are burning fewer calories during this time your metabolic rate switches off or goes into a low power mode. At least that is the conventional wisdom.
However, research has shown there are rises and falls in the metabolic rate even during deep REM sleep – known as the sleeping metabolic rate (SMR), which often correlates with day time rates. There’s also evidence that exercise increases metabolic rates, which perhaps proves the old adage, ‘after supper walk a mile.’ Obese individuals are likely to have lower metabolic rates than the average.