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.
However, carbohydrates require much more insulin than fat or protein does. The major determinate of blood sugar levels is the glycemic index response from the foods you eat, so while eating high-carb and high-sugar foods results in fluctuations in blood sugar levels, eating protein does the opposite.