Calcium is a crucial mineral that plays an essential role in maintaining strong bones, healthy teeth, and supporting overall body functions. A well-balanced diet rich in calcium is vital for long-term health. While dairy is often associated with calcium, there are many other sources, including plant-based options. If you’re following a specific diet like keto or looking for the highest calcium products to strengthen your intake, it’s useful to know where to find the best sources. This guide explores the top 10 foods rich in calcium and how to incorporate them into your daily meals.
Top 10 Calcium-Rich Foods You Should Include in Your Diet
Adding calcium-rich foods to meals is one of the simplest ways to meet daily nutritional needs. The options listed below cover both dairy and non-dairy sources:
- Milk: Milk remains one of the most consistent and bioavailable sources of calcium. One glass (250 ml) contains roughly 300 mg of calcium, which accounts for about 30% of the daily requirement for most adults. Both full-fat and low-fat versions provide similar calcium levels. It is also rich in vitamin D and protein, which help with calcium absorption and bone strength. For those with lactose intolerance, lactose-free milk or alternatives with added calcium can offer similar benefits.
- Yoghurt: Plain yoghurt is another concentrated dairy source of calcium, with one serving (150–200 g) offering around 300–400 mg. It also contains protein and live cultures that support digestive health. Greek yoghurt, which is strained to increase protein content, may have slightly lower calcium than regular yoghurt, but still contributes meaningfully to daily intake. Flavoured yoghurts should be chosen carefully, as some varieties contain added sugar.
- Cheese: Hard cheeses such as cheddar, gouda, and parmesan are particularly rich in calcium. A 30 g slice of cheddar cheese provides more than 200 mg of calcium. Cheese also contains phosphorus and protein, both of which are important for bone development. Though beneficial in small amounts, it is best to limit intake of processed cheese products that may be high in salt and saturated fats.
- Fortified plant-based milk: Plant-based milk alternatives such as soy, almond, oat, and rice milk are often fortified with calcium to match the levels found in cow’s milk. Fortified soy milk usually has the highest protein and calcium content among these options, providing around 300 mg per cup. These drinks suit individuals who avoid dairy due to allergies, intolerances, or dietary choices. Always check the label to ensure the product is fortified and shake the container well before use, as added calcium can settle at the bottom.
- Leafy green vegetables: Some green vegetables are good natural sources of calcium, though absorption rates can vary. Kale, bok choy (Chinese cabbage), collard greens, and turnip greens are all rich in calcium and more bioavailable than spinach or beet greens, which contain compounds (oxalates) that reduce calcium absorption. Cooking these vegetables lightly may help improve absorption. Including them in soups, stir-fries, or as side dishes can boost intake without needing supplements.
- Canned fish with edible bones: Canned sardines and salmon are excellent non-dairy sources of calcium, as the soft, edible bones are rich in this mineral. A 100 g serving of canned sardines can provide over 300 mg of calcium, along with omega-3 fatty acids and protein. These fish are easy to add to salads, sandwiches, or grain bowls and are suitable for those who prefer animal-based sources outside of dairy.
- Calcium-set tofu: Tofu made using calcium salts (such as calcium sulphate) is a notable source of calcium, particularly for plant-based diets. A 100 g portion can contain 300–400 mg, depending on how it is processed. It is also rich in protein and suitable for various cuisines. Tofu can be baked, grilled, or stir-fried and absorbs flavours well, making it easy to incorporate into meals.
- Almonds: Almonds offer modest calcium content along with healthy fats, fibre, and plant protein. A 30 g handful (about 25 nuts) provides around 75–80 mg of calcium. While they should be eaten in moderation due to their high calorie content, almonds make a good snack or addition to cereals, salads, or baked dishes. Almond butter is another option that can be spread on whole grain bread or added to smoothies.
- Fortified breakfast cereals: Several breakfast cereals are fortified with calcium and offer a convenient way to increase intake, especially when combined with milk or fortified plant-based drinks. Calcium content can vary, with some cereals providing over 100 mg per serving. Choose wholegrain varieties with lower sugar content for better overall nutrition. This option is particularly useful for children, teenagers, or adults with busy morning schedules.
- Sesame seeds and Tahini: Sesame seeds are rich in calcium, with one tablespoon providing around 90 mg. Tahini, made from ground sesame seeds, contains similar levels and is used in dishes such as hummus and salad dressings. These ingredients are easy to incorporate into meals and snacks without major changes to diet. A small serving added to sauces, dips, or toast can contribute meaningfully to calcium intake.