The science behind the ‘sugar crash’
“No matter what form sugar is found in, the body breaks it down for energy,” explains Shauna Lindzon, a registered dietitian in Toronto. “The difference is that natural sugar, found in things like fruit, also has fibre, water, phytochemicals, vitamins and minerals,” which all contribute to other aspects of healthy eating. (Here are some healthy eating tips for super busy people.) As Sygo explained, there are differences in the type of sugar and, while they’re processed the same, they are absorbed differently. “Sugar in its free form tends to cause a pretty quick spike in blood sugar, followed by a pretty rapid decline or ‘crash’, whereas, if you eat sugar that’s in a bound form, for example, in an apple or from a glass of milk, the effect on blood sugar is far less, so it doesn’t cause quite that same spike or crash,” says Sygo.