Evidence-based nutrition, in plain English — every entry sourced from clinical research.
Every entry in this collection — sourced, checked and written to be read.
A modified DASH pattern combined with potassium-rich, sodium-reduced salt improved home blood pressure and urinary sodium-to-potassium balance in adults with hypertension and type 2 diabetes, with no serious adverse events reported.
The sodium-to-potassium ratio predicted blood pressure and incident hypertension better than sodium or potassium alone, though its value in normotensive people and in children remains unclear.
Stroke risk falls as potassium intake rises, with the lowest risk seen at around 3,500 mg (90 mmol) per day.
Higher potassium intake lowered both systolic and diastolic blood pressure in a non-linear dose-response, with the clearest benefit in people already treated for hypertension; estimates at very high intakes are uncertain.
Over five years, omega-3 supplementation reduced new autoimmune disease by 15%, a reduction that did not reach statistical significance, while vitamin D reduced it by 22%.
Pooled trials showed omega-3 supplementation significantly reduced fasting blood glucose and insulin resistance, but did not significantly change HbA1c, and variation between studies was high.
Evidence remains too uncertain to say whether omega-3 treats depression in adults: any benefit over placebo was small, imprecise and not clinically meaningful, on low to very low certainty evidence.
The most extensive assessment to date found that increasing long-chain omega-3 slightly reduces coronary heart disease deaths and events and lowers triglycerides, on moderate- to low-certainty evidence; plant-derived ALA slightly reduces cardiovascular events and arrhythmia.
In this UK cohort, children of mothers with inadequate early-pregnancy iodine status were more likely to have lower verbal IQ and reading scores at
Pooled trial data suggest capsaicinoids taken before a meal modestly reduce ad libitum energy intake, which may support weight management; effects are small and
Pooling nine trials, chlorogenic-acid-rich green coffee extract was associated with small reductions in systolic and diastolic blood pressure, more pronounced in people with hypertension.
Across 20 randomised trials, green tea catechins were associated with modest reductions in total and LDL cholesterol, with no significant effect on HDL or