Tableau des Aliments Riches en Calcium

Calcium intake is usually discussed in terms of dairy, but the chart below shows why that framing is incomplete: calcium-set tofu, canned fish eaten with the bones, and fortified drinks all deliver more per serving than a glass of milk. What matters as much as the amount is absorption, and the two do not track together, which is why oxalate-rich greens like spinach are absent from this list despite their calcium content.

How much calcium you need

The Recommended Dietary Allowances below are from the Institute of Medicine review adopted by the NIH Office of Dietary Supplements. Requirements peak during adolescent bone growth and rise again in later life as bone loss accelerates.

• The upper limit matters: routinely exceeding it, usually through supplements rather than food, is associated with kidney stones and offers no additional bone benefit.
• The body absorbs calcium best in doses of about 500 mg or less, which is why split doses are advised when supplements are needed.

Calcium per realistic serving

Values are calculated from USDA FoodData Central per-100-gram figures, scaled to the household portions shown. Each row keeps its FDC ID so the underlying record can be checked.

• Tofu is only a calcium source when it is set with a calcium salt. Tofu set with magnesium chloride (nigari) contains a fraction as much, and the label is the only way to tell.
• Canned fish counts only when the softened bones are eaten. Boneless fillets contribute very little calcium.

Why absorption matters more than content

Roughly 30 percent of the calcium in milk is absorbed. Low-oxalate greens such as kale, bok choy and broccoli are absorbed at closer to 50 to 60 percent, so a smaller amount goes further. Spinach sits at the opposite extreme: it is rich in calcium but its oxalate binds almost all of it, giving an absorption fraction of around 5 percent, which is why it does not appear in the table above.

Vitamin D is the other half of the equation, because calcium absorption depends on it. Someone with a low vitamin D status absorbs less of whatever calcium they eat, which is why the two nutrients are assessed together and why fortified milk carries both.

• High-oxalate foods (spinach, rhubarb, beet greens) and high-phytate foods (unleavened whole grains, raw beans) reduce calcium absorption from the same meal.
• Very high sodium intake increases urinary calcium loss, which is a smaller but real influence on calcium balance.

Limites

• Values are for the specific USDA records cited. Brands vary considerably, particularly for tofu, plant milks and fortified products, where the label is the only reliable source.
• The table shows calcium content, not absorbed calcium. Two foods with the same milligram figure can differ several-fold in how much reaches the bloodstream.
• Plant milks vary from near zero to more than dairy depending on fortification, and the calcium settles, so an unshaken carton delivers less than the label states.
• Requirements shown are for healthy people. Chronic kidney disease, parathyroid disorders and some medications change calcium needs and handling substantially.
• Calcium supplements interact with several drug classes, including levothyroxine, bisphosphonates and some antibiotics, through reduced absorption.
• This is a reference chart, not an assessment of your intake or bone health.

Questions fréquentes

How much calcium do I need per day?

1,000 mg a day for most adults aged 19 to 50, rising to 1,200 mg for women over 50 and everyone over 70, and 1,300 mg during adolescence. The tolerable upper limit is 2,000 to 2,500 mg depending on age.

Which food has the most calcium per serving?

Among common foods, calcium-set firm tofu leads at roughly 861 mg per half cup, ahead of canned sardines with bones at about 351 mg and a cup of yogurt at about 296 mg.

Is spinach a good source of calcium?

No, despite its calcium content. Spinach is high in oxalate, which binds calcium so tightly that only about 5 percent is absorbed. Low-oxalate greens such as kale, collards and bok choy are far better sources.

Can I get enough calcium without dairy?

Yes. Calcium-set tofu, canned fish with bones, low-oxalate greens, white beans, sesame seeds and fortified plant milks or juices can meet requirements comfortably without any dairy.

Should I take a calcium supplement?

Food sources are preferred, and supplements are generally reserved for people who cannot meet requirements through diet. Absorption is best at doses of 500 mg or less, and routinely exceeding the upper limit is associated with kidney stones without added bone benefit.

Références

1. USDA FoodData Central. Food composition database, values pulled 2026-08-25.
2. NIH Office of Dietary Supplements. Calcium Fact Sheet for Health Professionals.
3. National Academies. Dietary Reference Intakes for Calcium and Vitamin D. NCBI Bookshelf.
4. MedlinePlus. Calcium in diet.