A sweet food contains table sugar, or sucrose – that compound made up of glucose and fructose. A starchy food doesn’t. Whenever we see a glucose spike from a sweet food, there is a corresponding fructose spike that unfortunately we can’t see. Continuous glucose monitors can detect only glucose, not fructose, and continuous fructose monitors don’t exist yet. Until they do, remember that if the food you ate was sweet and it created a glucose spike, it also created an invisible fructose spike, and that’s what makes a sweet spike more harmful than a starchy spike.
