How healthy are yoghurt and dairy for your heart and bones?
Moderate dairy consumption fits well within a heart- and bone-friendly diet, with yoghurt as the best choice. As long as your overall diet is healthy and your intake of saturated fats does not run too high, there is little cause for concern.
For most people, dairy is neutral to mildly beneficial for the heart and bones. This is the finding of a systematic review of 108 studies on yoghurt and fermented dairy: 76 of them reported favourable outcomes, such as fewer cardiovascular diseases and a lower risk of type 2 diabetes1. The large international PURE study, conducted in 21 countries, also found a slightly lower risk of cardiovascular disease with higher dairy intake, including a 6% reduction in stroke risk2,3. Note, however, that these are associations, not proof of cause and effect.
Yoghurt stands out as the most consistently positive choice. That same review of 108 studies shows favourable associations with bone health, weight management and glucose metabolism. Fermentation may provide additional benefits through bacteria and bioactive compounds, though causality has not been established here either1,4.
Full-fat versus low-fat dairy makes less difference than long believed. Milk, yoghurt and cheese appear to be neutrally to mildly favourably associated with cardiovascular health regardless of fat content. Researchers attribute this to the 'food matrix': the complete composition of a product matters, not just the fat. A caveat: part of this research was co-funded by the dairy industry, which calls for critical reading5,6.
Saturated fats in your overall diet do remain a point of attention. Guidelines advise limiting their intake to less than 10% of your daily calories, and more strictly still in the case of elevated cholesterol. This does not necessarily apply to one specific product, but full-fat dairy does not exempt you from the broader advice7.
The big picture matters most. The Mediterranean diet, with relatively little dairy but plenty of plant-based foods and olive oil, has been shown through randomised studies to be strongly cardioprotective8. The American Heart Association recommends low-fat or fat-free dairy as part of a heart-healthy pattern. Notably, in China milk consumption is associated with a 9% higher risk of cardiovascular and arterial disease, presumably due to the broader local dietary pattern4.
Based on multiple meta-analyses, the large international PURE cohort study (21 countries), a systematic review of 108 studies, and guidelines from the American Heart Association. Almost all evidence on dairy and cardiovascular disease is observational; causal evidence is scarce. One study has a financial interest from the dairy industry. PMIDs used: 39762253, 32447398, 40088974, 32562735, 34649831, 30223010, 30817261, 34724806.