Overview
- The finding comes from an observational study of more than 542,000 women followed for 16 years, so it cannot prove cause and effect.
- Researchers reported similar associations for calcium from dairy and plant sources, with a smaller reduction tied to supplements of about 9%.
- Scientists suggest calcium may help by binding bile acids and free fatty acids to form a harmless substance that protects the gut lining.
- Practical ways to reach roughly 300 mg include a cup of milk, six ounces of plain yoghurt, a cup of cooked collard greens, or two tablespoons of chia seeds.
- Bowel cancer causes about 44,100 new UK cases each year and around 10% of cancer deaths, with incidence rising faster among people under 55.