The Study
Dietary Glycemic Index, Dietary Glycemic Load, and Incidence of Heart Failure Events: A Prospective Study of Middle-Aged and Elderly Women
This study looked at what women ate and then watched to see if they got heart failure later. It didn’t find a clear link between sugary foods and heart failure — so we can’t say eating more sugar causes heart failure, but we also can’t say it definitely doesn’t matter.
Analysis score
Maximum 72 for a cohort study.
Where the score came from
This study looked at whether eating lots of sugary or starchy foods makes older women more likely to get heart failure.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 552 / 100
Quality score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Key takeaways
Summary
Based on the study abstract and findings.
- 1The 30% increase is not statistically certain, so we can't say for sure that sugary diets cause heart failure in this group.
- 2Women who ate the most sugary/starchy foods had a 30% higher chance of heart failure hospitalization or death, but this wasn't strong enough to be sure.
- 3Eating foods with high sugar spikes didn't clearly raise risk.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Journal of the American College of Nutrition
Year
2010
Authors
E. Levitan, M. Mittleman, A. Wolk
Related Content
Claims (6)
Eating a lot of sugary and refined carbs like white bread and soda may raise a woman’s chance of getting heart disease by almost double, even if she doesn’t have other common risk factors like high blood pressure or smoking.
In older Swedish women, eating lots of foods that spike blood sugar might be linked to more heart failure hospitalizations or deaths, but the evidence isn’t strong enough to be sure.
Eating foods that raise blood sugar quickly doesn’t seem to increase the risk of heart failure in middle-aged and older Swedish women, based on a study that found no clear link between the two.
For middle-aged and older Swedish women, eating foods that raise blood sugar quickly doesn’t seem to affect heart failure risk any more for overweight women than for women who are normal weight — the risk is about the same in both groups.
Eating more fiber doesn’t change whether foods that spike your blood sugar increase your risk of heart failure in middle-aged and older Swedish women.
Eating foods that spike your blood sugar quickly might be linked to a higher risk of heart failure in the first few years, but that link seems to fade over time—maybe because your body adjusts or doctors catch problems earlier.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.