The term secondary market is also used to refer to the market for any used goods or assets, or an alternative use for an existing product or asset where the customer base is the second market (for example, corn has been traditionally used primarily for food production and feedstock, but a second or third market has developed for use in ethanol production).
What you eat with your carbohydrates matters, too. Protein and fat slow the absorption of glucose into the bloodstream, which helps prevent [insulin] spikes and drops, says Jamieson-Petonic.
So by eating processed carbs your glucose increases rapidly, which causes a spike in insulin. The glucose is quickly turned into glycogen but your insulin levels are still high so you start creating body fat. Conversly, when you eat less carbs or natural carbs, your glucose and insulin levels don't spike.