Women who consume more dietary cholesterol face a greater increase in heart disease risk than men who consume the same amount, indicating that sex may influence how cholesterol affects the body.
Evidence from Studies
No evidence studies found yet.
What Would Prove This
Per GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this claim, ordered from strongest to weakest.
A systematic review and meta-analysis of cohort studies stratified by sex would determine whether the stronger association between dietary cholesterol and CVD in women is consistent across populations.
A systematic review and meta-analysis of 15+ prospective cohort studies that report sex-stratified hazard ratios for dietary cholesterol and CVD, adjusting for age, BMI, smoking, and saturated fat, with pooled estimates for men and women separately.
A randomized trial could determine whether reducing dietary cholesterol lowers CVD risk more in women than in men, isolating sex as a modifier.
A double-blind, randomized trial of 2,000 adults (1,000 women, 1,000 men) aged 45–75, randomized to consume 100 mg/day or 400 mg/day of dietary cholesterol for 10 years, with primary outcome of composite CVD events, stratified by sex and adjusted for hormone therapy use.
A prospective cohort study with sex-stratified analysis could confirm whether the cholesterol-CVD association differs by sex after accounting for hormonal and lifestyle factors.
A prospective cohort of 12,000 adults (6,000 women, 6,000 men) aged 40–70 with annual dietary assessments, hormone level measurements (e.g., estradiol, testosterone), and centralized adjudication of CVD events, adjusting for menopausal status and hormone therapy.
A case-control study could compare dietary cholesterol intake in women and men with and without CVD to assess whether the association differs by sex.
A matched case-control study of 1,500 women and 1,500 men with incident CVD and 1,500 without, matched for age and BMI, with detailed dietary recall of cholesterol intake over the prior 5 years, stratified by sex and adjusted for smoking and physical activity.
A cross-sectional study could examine whether dietary cholesterol intake correlates with arterial plaque or LDL levels more strongly in women than in men.
A cross-sectional analysis of 4,000 adults (2,000 women, 2,000 men) aged 45–75 measuring dietary cholesterol intake via food frequency questionnaire and carotid intima-media thickness or LDL cholesterol levels, stratified by sex and adjusted for BMI and menopausal status.