It can be challenging to get enough calcium on a plant-based diet. To help you make the right dietary choices, we are bringing you a list of 50+ plant-based foods rich in calcium.
Index
- What is calcium?
- How much calcium do you need?
- Consequences of calcium deficiency
- List of plant-based foods rich in calcium
- Conclusion
What is calcium?
Calcium is the most abundant mineral in the human body. 99% of our calcium is found in bones and teeth. As such, it plays a well-known role in the health and density of our teeth and bones.
However, calcium is also involved in the transmission of nerve impulses, muscle contraction, hormone secretion, as well as participating in several enzymatic processes.
How much calcium do you need?
Calcium daily requirements vary depending on your age and sex.
Sex | Age: 4 – 18 | Age: 19 – 50 | Age: 51 – 70 | Age > 71 |
Male | 1,300 mg | 1,000 mg | 1,000 mg | 1,200 mg |
Female | 1,300 mg | 1,000 mg | 1,200 mg | 1,200 mg |
If you are taking a multivitamin, check the label to see what portion of your daily calcium intake it may supply you with.
The % DV (Percent Daily Value) you see on nutritional labels tends to be based on the standard 1,000 mg per day requirement.
Concerns about calcium supplementations have been blown out of proportion, as it’s fine to supplement it in small doses. Out of caution, however, it is still recommended to get most of your calcium from food rather than supplements.
Consequences of calcium deficiency
In the long run, not eating enough calcium has serious consequences. It impacts bone health, leading to osteomalacia (soft bones) and osteoporosis (bone loss and weakness) in adults, and rickets and stunted growth in children.
Hypocalcemia also impacts your nervous system, potentially leading to irritability, tetany (spasms of the extremities), cramps (both abdominal and muscular), and muscular stiffness.
Studies have also found that low calcium intake is associated with kidney stones, low blood pressure, and an increased risk of CVD (Cardiovascular Disease).
Conversely, an excess of calcium in your blood (hypercalcemia), whether caused by excessive intake or overactive parathyroid glands, is also a serious medical concern.
Too much calcium is associated with constipation, nausea, dry mouth, kidney stones (particularly when heavily supplemented), and poor bone health. In addition, it can negatively impact both your heart and brain.
List of plant-based foods rich in calcium
Omnivores get the majority of their calcium from dairy products such as cheese and milk. In this article, we list plant-based foods that are rich in calcium, as omitting dairy products from your diet can make meeting one’s calcium intake requirements more challenging.
However, if you incorporate many of these calcium-rich foods into your diet you are likely to meet your calcium needs without too much effort.
There are several vegetables (dark leafy greens in particular), nuts, seeds, beans, grains, and even fruits, that contain decent amounts of calcium.
Let’s review each category.
Vegetables rich in calcium
Below you’ll find a list of vegetables rich in calcium.
Food | Calories (per 100 g) | Calcium (per 100 g) | Calcium (per 100 cal) | Calcium % DV (per 100 cal) |
Bok Choy | 13 cal | 105 mg | 808 mg | 81% |
Kale | 35 cal | 254 mg | 726 mg | 73% |
Arugula | 25 cal | 160 mg | 640 mg | 64% |
Turnip Greens | 32 cal | 190 mg | 594 mg | 59% |
Collards | 35 cal | 201 mg | 574 mg | 57% |
Broccoli Rabe | 24 cal | 120 mg | 500 mg | 50% |
Spinach | 24 cal | 99 mg | 413 mg | 41% |
Rhubarb | 21 cal | 86 mg | 410 mg | 41% |
Mustard Greens | 24 cal | 94 mg | 392 mg | 39% |
Kelp | 43 cal | 168 mg | 391 mg | 39% |
Swiss Chard | 19 cal | 51 mg | 268 mg | 27% |
Celery | 14 cal | 36 mg | 257 mg | 26% |
Okra | 44 cal | 80 mg | 182 mg | 18% |
Blackstrap Molasses | 400 cal | 667 mg | 167 mg | 17% |
Cabbage | 25 cal | 40 mg | 160 mg | 16% |
Fennel | 31 cal | 49 mg | 158 mg | 16% |
Broccoli | 31 cal | 46 mg | 148 mg | 15% |
Green Beans | 29 cal | 35 mg | 121 mg | 12% |
Brussels Sprouts | 41 cal | 47 mg | 115 mg | 11% |
Artichokes | 50 cal | 50 mg | 100 mg | 10% |
Butternut Squash | 47 cal | 47 mg | 100 mg | 10% |
Leeks | 61 cal | 59 mg | 97 mg | 10% |
Asparagus | 29 cal | 24 mg | 83 mg | 8% |
Pumpkin | 42 cal | 33 mg | 79 mg | 8% |
Onions | 40 cal | 23 mg | 58 mg | 6% |
Edamame | 127 cal | 56 mg | 44 mg | 4% |
Sweet Potato | 85 cal | 30 mg | 35 mg | 4% |
As you can see, some of these have a huge amount of calcium in them. For reference, the calcium amount of cow milk is 30% DV per cup.
Keep in mind, though, that some vegetables (e.g., spinach and rhubarb) have a high content of oxalates which bind to the calcium within the plant, making it less bioavailable. You can think of it as the vegetable having calcium but being greedy with it. 🙂
For this reason, we do not recommend loading up solely on spinach, for example, in an attempt to meet calcium requirements. Variety is king.
Nuts and seeds rich in calcium
Below you’ll find a list of nuts and seeds rich in calcium.
Food | Calories (per 100 g) | Calcium (per 100 g) | Calcium (per 100 cal) | Calcium % DV (per 100 cal) |
Celery Seeds | 392 cal | 1767 mg | 451 mg | 45% |
Poppy Seeds | 533 cal | 1500 mg | 281 mg | 28% |
Sesame Seeds | 573 cal | 975 mg | 170 mg | 17% |
Chia Seeds | 489 cal | 643 mg | 131 mg | 13% |
Flax Seeds | 534 cal | 255 mg | 48 mg | 5% |
Almonds | 567 cal | 267 mg | 47 mg | 5% |
Brazil Nuts | 659 cal | 160 mg | 24 mg | 2% |
Despite being caloric, some of these seeds have enough calcium in them that even a 100 calorie “investment” can give you a sizable portion of your daily calcium requirements.
Beans and grains rich in calcium
Below you’ll find a list of some beans and grains worth considering.
Food | Calories (per 100 g) | Calcium (per 100 g) | Calcium (per 100 cal) | Calcium % DV (per 100 cal) |
Winged Beans (cooked) | 147 cal | 142 mg | 97 mg | 10% |
White Beans (cooked) | 142 cal | 73 mg | 51 mg | 5% |
Amaranth (dry) | 371 cal | 159 mg | 43 mg | 4% |
Kidney Beans (cooked) | 127 cal | 28 mg | 22 mg | 2% |
Objectively, their calcium content is not huge, but it all adds up at the end of the day. Plus beans are great for you, so you should be eating them anyway and their calcium content is just an added bonus.
Fruits rich in calcium
Fruits don’t tend to be very high in calcium, but there are some exceptions. Below we list a few that are rich in calcium.
Food | Calories (per 100 g) | Calcium (per 100 g) | Calcium (per 100 cal) | Calcium % DV (per 100 cal) |
Prickly Pears | 41 cal | 56 mg | 137 mg | 14% |
Mulberry | 43 cal | 39 mg | 91 mg | 9% |
Oranges | 47 cal | 40 mg | 85 mg | 9% |
Blackberries | 43 cal | 29 mg | 67 mg | 7% |
Papaya | 43 cal | 20 mg | 47 mg | 5% |
Grapefruit | 32 cal | 12 mg | 38 mg | 4% |
Dried Figs | 304 cal | 107 mg | 35 mg | 4% |
Processed vegan foods rich in calcium
Several plant-based foods are also fortified with calcium. Some examples of vegan foods rich in calcium include:
- Plant-based milk
- Orange juice
- Tofu prepared with calcium
- Instant oatmeal
- Cereals
- Vegan protein
- Vegan bars
- Plant-based meats
- Plant-based cheeses
These will often have 20% or more of the DV for calcium per serving.
Our stance is to go easy on processed foods, but if you already partake in these foods, it’s worth checking the nutritional label to verify their calcium content.
Conclusion
The take-home lesson is that the world of plant-based eating offers plenty of non-diary foods that are rich in calcium. You just have to ensure to eat a few each day to meet your daily calcium requirements.
As usual, if you question whether you are getting enough calcium, consider logging your food for a few days with an app like Cronometer. It will tell you whether you are meeting your calcium (and other micronutrients) goals.
Checking your plasma calcium levels with a blood test is always a good idea and if you experience any of the symptoms mentioned in this article, you should discuss them with your doctor.
Generally speaking, as long as you meet your daily requirements from plant-based foods you shouldn’t be deficient. As a reminder, Vitamin D facilitates the absorption of calcium, so make sure you supplement it if required.
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