Patient-Friendly Explanation

The insulin index is a measure of how much a food raises your insulin level after eating, compared with a standard reference food. It is different from the glycaemic index, which measures blood sugar, because some foods raise insulin more than expected from their sugar response. Understanding this can help people choose foods that keep insulin steadier.

Clinical Definition

The insulin index quantifies the postprandial insulin response to a fixed caloric portion of a food, expressed relative to a reference (commonly white bread or glucose). Distinct from the glycaemic index, it captures insulin secretion driven by factors beyond glucose, such as certain amino acids in protein-rich foods and fat, and is relevant to hyperinsulinaemia, insulin resistance, and appetite regulation.

Why It Matters

Because chronically elevated insulin promotes fat storage and hunger, choosing foods with a moderate insulin response can support metabolic health during weight loss. At NuLifeCare Singapore, our nutrition guidance considers satiety and hormonal responses, not just calories, to build plans that keep hunger and insulin steadier.