When people think of getting calcium, the first image that usually comes to mind is a glass of milk.
So many people wonder: "If I don't drink milk, will I get enough calcium?"
Short answer: yes — and it's easier than you think.
What Does Calcium Do?
Calcium is the most abundant mineral in the human body. Beyond building bones and teeth, it's involved in muscle contraction, nerve transmission, and heart function. Without calcium, we couldn't even move properly.
Adults need about 1000 mg of calcium per day. When intake falls short, the body "withdraws" calcium from bones to maintain normal function. Over time, this can lead to bone loss, muscle cramps, and deteriorating dental health.
Interestingly, while many worry about skipping milk, fewer ask: is milk even suitable for humans? Lactose intolerance is increasingly common — especially among Asians — and can cause bloating, diarrhea, or digestive discomfort. Some people also react to milk proteins (casein) with nasal allergies, dermatitis, or breakouts. These issues are linked to hormones and antibiotics in milk.
Additionally, animal welfare concerns around dairy farming — including the conditions of dairy cows and the forced separation of mothers and calves — are increasingly coming to light. After all, cow's milk is produced for calves, not humans.
Rich Plant-Based Calcium Sources
The good news: tofu and dried tofu are excellent calcium sources, because their production uses calcium sulfate (gypsum) or calcium chloride as coagulants. Dark leafy greens like kale, komatsuna, amaranth, and sweet potato leaves are also rich in calcium. Black sesame, almonds, and fortified plant milks all help increase calcium intake.
Bone health is never just about drinking milk. Adequate calcium, vitamin D, sufficient sun exposure, regular exercise, and good lifestyle habits all play a role.
Food | Calcium (mg/100g) |
Small dried fish | ~2200 |
Black sesame | ~1450 |
Red amaranth | ~180–220 |
Firm tofu (gypsum-set) | ~150–350 |
Komatsuna | ~170 |
Kale | ~150–180 |
Dried tofu | ~150–250 |
Almonds | ~240–270 |
Sweet potato leaves | ~100–120 |
Cow's milk | ~100–120 |
Regular tofu | ~80–150 |
Small dried fish are often touted as a calcium champion, with far more calcium per 100g than milk or most plant foods. However, they're also high in sodium, and most people can't realistically eat 100g at a time. From a marine sustainability perspective, small fish are a critical link in the ocean food chain and play a key ecological role. Mass harvesting for feed, fertilizer, or food may impact marine ecosystems.
Calcium doesn't need to come from animal sources. Through soy products, dark leafy greens, nuts and seeds, and fortified plant milks, adequate calcium is completely achievable.