Calcium and Iron in Your Diet

Yes, absolutely. Many non-dairy foods provide excellent calcium. Leafy greens like kale and collard greens, fortified plant-based milks, tofu, tahini, almonds, and fish with edible bones are all rich calcium sources. The key is consuming a variety of these foods and ensuring adequate vitamin D for optimal absorption.

Plant-based calcium sources may require slightly higher intake due to variable absorption rates, but a well-planned diet easily meets calcium needs without dairy products.

Vitamin C is particularly effective at enhancing iron absorption. Consuming iron-rich meals with citrus fruits, tomatoes, berries, or peppers significantly improves non-haem iron uptake. Combining meat, poultry, or seafood with plant-based iron sources also enhances overall iron availability.

Conversely, certain compounds like tannins in tea, calcium supplements, and phytates in grains can reduce iron absorption when consumed together with iron-rich foods. Spacing them appropriately maximises your body's ability to utilise dietary iron.

Calcium and iron utilise some of the same absorption pathways in the intestine, meaning excessive calcium intake (particularly from supplements) can potentially inhibit iron absorption. This is generally not a concern when both minerals come from whole foods consumed throughout the day.

To optimise both minerals, consume calcium-rich and iron-rich foods at different times when possible, and ensure adequate vitamin D and vitamin C intake to support absorption of both minerals. A balanced, varied diet naturally manages this relationship well.