Ranked by calcium per 100 g of the food in the form named on its card, using the figure on the card. The Source column names the dataset and row. "Closest official match" means no row exists for the same food in the same form, so the card uses the nearest published row. Foods whose figures come from the same row are one entry, with each food linked to its card.
| # | Food | Calcium per 100 g | % NRV (UK) | Source |
|---|---|---|---|---|
| 1 | Poppy seeds Raw | 1438 mg | 180% | USDA FoodData Central Spices, poppy seed (USDA FDC SR Legacy 171330) |
| 2 | Seeds, sesame seeds, whole, dried (black sesame seeds Closest official match, sesame seed) Raw | 975 mg | 122% | USDA FoodData Central Seeds, sesame seeds, whole, dried (USDA FDC SR Legacy 170150) |
| 3 | Kombu Dry | 900 mg | 113% | UK CoFID Seaweed, kombu, dried, raw (CoFID 2021 13-339) |
| 4 | Agar, dried Dry | 760 mg | 95% | UK CoFID Agar, dried (CoFID 2021 13-146) |
| 5 | Firm tofu As sold | 683 mg | 85% | USDA FoodData Central Tofu, raw, firm, prepared with calcium sulfate (USDA FDC SR Legacy 172475) |
| 6 | Chia seed Raw | 631 mg | 79% | USDA FoodData Central Seeds, chia seeds, dried (USDA FDC SR Legacy 170554) |
| 7 | Stinging nettle, blanched Cooked | 481 mg | 60% | USDA FoodData Central Stinging Nettles, blanched (Northern Plains Indians) (USDA FDC SR Legacy 169819) |
| 8 | Nori Dry | 430 mg | 54% | UK CoFID Seaweed, nori, dried, raw (CoFID 2021 13-340) |
| 9 | Tahini As sold | 426 mg | 53% | USDA FoodData Central Seeds, sesame butter, tahini, from roasted and toasted kernels (most common type) (USDA FDC SR Legacy 170189) |
| 10 | Seaweed, dried (arame, dulse, hijiki, sea lettuce) Dry | 372 mg | 47% | USDA FoodData Central Seaweed, dried (USDA FNDDS 2709988) Closest official match |
| 11 | Grape leaves Raw | 363 mg | 45% | USDA FoodData Central Grape leaves, raw (USDA FDC SR Legacy 168575) |
| 12 | Carob flour As sold | 348 mg | 44% | USDA FoodData Central Carob flour (USDA FDC SR Legacy 173755) |
| 13 | Almond butter As sold | 347 mg | 43% | USDA FoodData Central Nuts, almond butter, plain, without salt added (USDA FDC SR Legacy 168588) |
| 14 | Baobab powder Dry | 342 mg | 43% | USDA FoodData Central Baobab powder (USDA FDC SR Legacy 167806) |
| 15 | Lamb's quarters Raw | 309 mg | 39% | USDA FoodData Central Lambsquarters, raw (USDA FDC SR Legacy 169244) |
| 16 | Amaranth leaves Raw | 270 mg | 34% | UK CoFID Amaranth leaves, raw (CoFID 2021 13-149) |
| 17 | Almond Raw | 269 mg | 34% | USDA FoodData Central Nuts, almonds (USDA FDC SR Legacy 170567) |
| 18 | Flaxseed Raw | 255 mg | 32% | USDA FoodData Central Seeds, flaxseed (USDA FDC SR Legacy 169414) |
| 19 | Kale, raw (kale, kale juice Closest official match) Raw | 254 mg | 32% | USDA FoodData Central Kale, raw (USDA FDC SR Legacy 168421) |
| 20 | Soya beans, dry Dry | 240 mg | 30% | UK CoFID Beans, soya, dried, raw (CoFID 2021 13-115) |
| 21 | Collard greens Raw | 232 mg | 29% | USDA FoodData Central Collards, raw (USDA FDC SR Legacy 170406) |
| 22 | Natto As sold | 217 mg | 27% | USDA FoodData Central Natto (USDA FDC SR Legacy 172443) |
| 23 | Purple sprouting broccoli Raw | 200 mg | 25% | UK CoFID Broccoli, purple sprouting, raw (CoFID 2021 13-174) |
| 24 | Goji berry Dry | 190 mg | 24% | USDA FoodData Central Goji berries, dried (USDA FDC SR Legacy 173032) |
| 25 | Dandelion greens Raw | 187 mg | 23% | USDA FoodData Central Dandelion greens, raw (USDA FDC SR Legacy 169226) |
% NRV (UK) is against the UK Nutrient Reference Value for calcium, 800 mg. Herbs, spices (eaten in pinches) and dry teas (brewed, not eaten) are left out, and so are foods with no calcium value. Per 100 g is not a portion: compare foods eaten in similar amounts.
Also see the Calcium per 100 g list, all rankings and about our data.
Answer-ready: In Thrive's plant-food data (UK CoFID and USDA FoodData Central), the plant foods highest in calcium per 100 g are Poppy seeds (1438 mg), Seeds, sesame seeds, whole, dried (black sesame seeds, sesame seed) (975 mg), Kombu (900 mg).