Archive · 27 Aug 2026
Why Insulin Resistance and Insulin Loss Develop Differently
Insulin is a hormone that helps move sugar from the blood into the body’s cells.
In some people, the cells stop responding well to insulin, which is called insulin resistance.
In other people, the pancreas gradually becomes less able to make insulin.
Many people have both problems at the same time.
Genes can affect how strong and resilient the pancreas’s insulin-making cells are.
Extra fat around the abdomen, aging, poor diet and long-term stress can make these cells work less effectively.
Exercise can improve the body’s response to insulin and reduce the pancreas’s workload.
At first, the pancreas may make extra insulin to keep blood sugar near normal.
Over time, continued insulin resistance and high blood sugar can damage this ability, sometimes requiring additional medicines or insulin therapy.
Insulin resistance occurs when muscle, liver and fat cells respond poorly to insulin.
Beta-cell decline happens when the pancreas loses its ability to produce enough insulin.
Genetics may influence beta-cell reserve and determine which problem becomes dominant.
Visceral fat, aging, refined carbohydrates and cellular stress can impair beta-cell function.
Prolonged insulin resistance and high glucose may eventually reduce insulin production and change treatment needs.
- Who
- People who develop blood-sugar regulation problems, as explained by consultant dietician and diabetes educator Kanikka Malhotra.
- What
- The article explains why some people mainly develop insulin resistance while others progressively lose insulin-producing capacity.
- When
- The processes can develop over time; beta-cell efficiency may decline with age, and prolonged insulin resistance can eventually reduce insulin production.
- Where
- The biological changes involve muscle, liver, fat tissue and pancreatic beta cells; the article also highlights abdominal visceral fat, including among some South Asian body types.
- Why
- Genetics, beta-cell reserve, visceral fat, aging, diet, physical activity and long-term cellular stress can influence which problem dominates.
- Insulin resistance
- Muscle, liver and fat cells respond less effectively to insulin.
- Beta-cell decline
- Pancreatic insulin-producing cells lose function or gradually die off.
- Genetic role
- Genetics may affect the number and resilience of beta cells.
- Visceral fat
- Abdominal fat can release inflammatory signals and byproducts that impair insulin action and beta-cell function.
- Early compensation
- The pancreas may initially produce more insulin to keep blood sugar relatively normal.
- Possible progression
- Persistent insulin resistance and elevated glucose can eventually contribute to declining insulin production.
- Monitoring
- Glucose measurements and, when clinically appropriate, C-peptide may help assess changing insulin production.