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.
Protein is more satiating than either carbohydrates or fat, and occasionally eating a protein bar may also lower your blood sugar levels, especially if the bar is also high in fiber. As part of a weight-loss plan, a protein bar can also make a reasonable meal replacement and may save you hundreds of calories per day.