Health · Medical Research · 5 hrs ago
Studies link frequent artificial sweetener use to health risks
A review combining 37 studies and health data from more than 3.6 million people found that those with the highest artificial sweetener intake had higher risks of several conditions.
Their risk of type 2 diabetes and heart failure was 26% higher than among people with the lowest intake.
Other research followed 12,772 adults in Brazil for about eight years and linked higher intake to faster declines in some thinking skills among people under 60.
These studies examined links, not proof that sweeteners cause disease.
The concerns relate to sweeteners used in products such as zero-sugar drinks, including aspartame and sucralose.
The findings matter because zero calories do not necessarily mean no health concerns, but the research does not establish that these products directly cause illness.
South Korea's diabetes and nutrition societies said they do not recommend long-term artificial sweetener use; the studies cited do not set out a specific next step for consumers.
A meta-analysis of more than 3.6 million people linked high artificial sweetener intake with higher risks of type 2 diabetes and heart failure.
Other studies reported associations with cardiovascular disease, cognitive decline among adults under 60, and chronic kidney disease.
Researchers stressed that most findings show associations and do not prove that sweeteners directly cause disease.
A joint statement by South Korea’s diabetes and nutrition societies said long-term consumption of artificial sweeteners is not recommended.
- Who
- Researchers and health organizations examined artificial sweetener use and health outcomes.
- What
- Studies linked higher intake with increased risks of several conditions, but did not establish that sweeteners cause them.
- When
- The article was published on October 23, 2026; the studies and reports cited span several years.
- Where
- The research included data and teams from South Korea, the United States, Brazil, Australia and China, among others.
- Why
- Researchers investigated whether replacing sugar with artificial sweeteners may have health effects over time.
This story does not have two clearly opposing sides.
A meta-analysis in Nutrition Research and Practice reported associations between artificial sweetener intake and cardiometabolic risks.
A study tracking 12,772 adults for about eight years reported an association between sweetener intake and cognitive decline among people under 60.
A Monash University study reported higher type 2 diabetes risk among adults who drank artificially sweetened beverages at least once a day.
The Korean Diabetes Association and Korean Nutrition Society published a joint statement that did not recommend long-term artificial sweetener consumption.
- Meta-analysis sample
- 3,625,613 people across 37 studies
- Type 2 diabetes risk
- 26% higher among those with the highest intake than those with the lowest
- Heart failure risk
- 26% higher among those with the highest intake than those with the lowest
- Cognitive study
- 12,772 adults followed for about eight years
- Kidney disease study
- 19% higher chronic kidney disease risk among heavier users than non-users
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