Among all the foods studied, only eating fish and tofu/soy products showed a clear link to fewer heart problems in people with heart disease — even after accounting for everything else they ate.
Claim Context
Fish and tofu/soybean consumption are the only individual food items significantly associated with lower risk of major adverse cardiovascular events in high-risk patients with stable coronary heart disease after full adjustment for dietary patterns and confounders.
“In fully adjusted models, fish and tofu/soybean were the only food groups significantly associated with lower MACE (see Supplementary material online, Table S4).”
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.
Whether fish and tofu/soybean intake independently reduce MACE in patients with coronary heart disease across multiple studies.
A systematic review and meta-analysis of prospective studies and RCTs evaluating fish (≥2 servings/week) and tofu/soybean (≥3 servings/week) intake and MACE in patients with stable CHD, adjusting for total diet quality, with pooled hazard ratios and subgroup analyses by type of fish (fatty vs lean) and soy form (fermented vs non-fermented).
Whether increasing fish and tofu/soybean intake alone reduces MACE in patients with stable coronary heart disease.
A double-blind RCT of 2,000 patients with stable CHD randomized to: (1) increased fish (3x/week) + tofu/soybean (3x/week), (2) increased fish only, (3) increased tofu/soybean only, or (4) control, with MACE as primary endpoint over 5 years, and dietary adherence monitored via biomarkers.
Whether fish and tofu/soybean intake independently predict MACE in a large global cohort of patients with stable coronary heart disease.
A prospective cohort study of 40,000 patients with stable CHD across 50 countries, measuring weekly intake of fish and tofu/soybean via validated FFQs, adjusting for total MDS, medications, and lifestyle, tracking MACE over 10 years.
Whether patients who experienced MACE consumed less fish and tofu/soybean than matched controls.
A nested case-control study within the STABILITY cohort, matching 1,500 MACE cases with 1,500 controls, using baseline FFQ data to compare fish and tofu/soybean intake, adjusting for all covariates and MDS.
Whether fish and tofu/soybean intake correlates with improved cardiovascular biomarkers in patients with stable coronary heart disease.
A cross-sectional analysis of 3,000 patients with stable CHD measuring weekly fish and tofu/soybean intake and concurrent biomarkers (omega-3 levels, CRP, LDL, endothelial function) to determine if these foods correlate with better vascular health.