Calcium-rich foods

What if your bone structure depended on what you eat? Calcium plays a key role in bone health, but also in vital functions that are often overlooked. Focus on the best dietary sources.

Calcium: more than just a mineral for bones

Calcium plays a fundamental role in the functioning of the body. While it is best known for its impact on bone health and preventing the risk of fractures, it also plays a role in blood clotting, muscle contraction, and nerve transmission.

The human body does not produce calcium, so it must obtain it daily from food. Insufficient intake can weaken bones over time, but an excess can promote the formation of kidney stones. The challenge, therefore, is to find the right balance.

What are the daily calcium requirements?

Calcium requirements vary according to age and activity level. Generally, an adult needs about 900 to 1,200 mg per day, slightly more for teenagers, pregnant women, or seniors.

This calcium intake can be easily achieved with a balanced diet, combining several varied food sources.

What foods are rich in calcium?

Calcium-rich foods are not limited to dairy products. Here are the main categories to include in your routine:

Dairy products (milk, yogurt, cheese): an excellent source with about 300 mg of calcium per 100 g of Emmental-type cheese

• mineral waters rich in calcium: some provide more than 500 mg per liter
• nuts (almonds, hazelnuts): 200 to 250 mg per 100 g, very useful as a snack
• white beans, chickpeas, lentils: around 100 mg per 100 g cooked
• whole grains: good for digestion and moderately rich in calcium
• seafood (small sardines with bones, shrimp): up to 400 mg per 100 g depending on the species
• certain green vegetables (broccoli, spinach) complement the intake well

These calcium sources are more or less absorbable depending on their matrix. For example, calcium from dairy products is better absorbed than that from certain oxalate-rich vegetables (such as spinach).

Better calcium absorption without excess

A good daily diet rich in calcium is not enough: it is also important to ensure its absorption. To do this, prioritize moderate sun exposure (vitamin D), limit excess salt, and avoid magnesium or vitamin K deficiencies.

Conversely, uncontrolled supplementation or a diet very rich in calcium can promote kidney stones. It is therefore preferable to favor a variety of calcium-rich foods rather than relying solely on supplements.