Micronutrients

Calcium sources for vegans: tips for the right nutrition & food choice

from Dr. Michael Kohlberger, BSc, MSc
on 15.10.2025

Milk and dairy products are often considered the first choice when it comes to important sources of calcium. But what about vegan diets? Can vegans also meet their calcium requirements? The answer is a resounding yes! Even without milk, it is possible to maintain a healthy calcium balance. However, there are a few important points that vegans should keep in mind in their diet to ensure an adequate calcium supply. In this article, we clarify common misconceptions and provide valuable tips on how you can optimally meet your calcium needs – without any animal products.

A meaningful mineral

Did you know that calcium is the most important mineral in your body in terms of quantity? In fact, it makes up 2% of your body weight – and that's no joke! The largest store of calcium is found in your teeth and bones, where an impressive 99% of this valuable mineral is stored.

Vegans often wonder how they can meet their calcium requirements, as many calcium-rich foods such as dairy products are not included in a plant-based diet. But don't worry – plant-based sources also offer plenty of calcium!

3 myths about vegan diet and calcium: we set the record straight

Myth No. 1: If you decide to follow a vegan diet, you won't get enough calcium.

  • Only partially correct.
  • Explanation: Vegans who eat a varied diet with a focus on calcium-rich plant-based foods, supplemented with calcium-rich plant milk, can easily meet their daily calcium requirements. The claim that a vegan diet does not provide enough calcium is therefore only true if you have not planned your diet well.

Myth No. 2: Calcium from plants is less absorbable than calcium from milk.

  • Wrong!
  • Explanation: The calcium absorption rate varies from food to food. The fact is that many plants have roughly the same bioavailability of calcium as cow's milk. Only a few plants have poorer bioavailability. In general, a well-planned vegan diet can also provide you with sufficient amounts of calcium.

Myth No. 3: Vegans have an increased risk of osteoporosis due to poorer calcium intake.

  • Only partially correct.
  • Explanation: Vegans who ensure they consume adequate amounts of calcium through plant-based foods do not have higher rates of osteoporosis compared to vegetarians and people who eat a mixed diet. The prerequisite for this is a well-planned diet. If you do not follow such a diet, the risk of osteoporosis may increase, as is the case with other suboptimal diets.

Overall, milk and dairy products are undoubtedly among the best sources of calcium, but you can also get enough without them. Even if you follow a strictly plant-based diet, you don't need to worry about calcium deficiency or poor bone health. However, not all vegan diets are the same. It's all about finding the right mix of foods.

Plant-based and vegan sources of calcium

Ideally, your vegan diet should consist of three groups of plant-based foods to meet your total calcium requirements:

  • 1. Third: Foods with medium to high calcium content
    Examples: kale, pak choi, Chinese cabbage, rocket, nettles, broccoli, figs, mineral water, cocoa powder, pistachios, sesame seeds, chia seeds, poppy seeds, linseeds, almonds, hazelnuts
  • 2. Third: Calcium-rich plant-based milks or tofu
    Examples: calcium-enriched soya milk, almond milk, oat milk or tofu
  • 3. Third: Plant-based foods low in calcium
    Examples: whole grains, pseudograins, legumes, sweet potatoes, leafy vegetables, other nuts and seeds

Inhibiting substances

However, we do have some bad news for you: some substances can inhibit the absorption of calcium in your body. Therefore, you should eat foods containing these substances with caution. However, you don't have to ban them from your diet altogether – on the contrary, moderate amounts can even be healthy:

  • Oxalic acid: This acid is found in large quantities in spinach, Swiss chard and rhubarb.
  • Phytates: These are a form of phosphate found mainly in sesame seeds and some wholemeal products, as well as nuts and legumes.

Other substances and products that can have a negative effect on your calcium intake or cause the mineral to be excreted quickly include:

  • Tannic acid (e.g. in coffee and black tea)
  • Phosphate (e.g. in sausage, soft drinks)
  • Table salt
  • Alcohol

Promoting substances

The good news is: there are also substances that help your body absorb calcium better. So feel free to consume a little more of the following ingredients, spread out evenly throughout the day:

  • Vitamin D
  • Vitamin K
  • Protein
  • Vinegar
  • Lemon juice

Vitamin D is particularly essential, as your body can only absorb calcium properly if it has sufficient vitamin D levels! We therefore recommend that you have your vitamin D levels checked and, if necessary, support your body with high-quality supplements.

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Other nutritional factors that play a role

If you pay attention to all of this, you will already have created excellent conditions for providing your body with sufficient calcium as a vegan. Also keep the following in mind:

  • It is better to eat several calcium-rich meals spread throughout the day than one large meal. This is because a high calcium intake temporarily reduces the absorption rate.
  • Pay attention to your magnesium balance – calcium and magnesium complement each other perfectly and ensure that your muscles and nerves function optimally.

Those who wish to provide their body with optimal support can also take advantage of high-quality dietary supplements. Combination preparations containing calcium, magnesium and vitamin D, for example, are particularly popular.

How much calcium you should consume daily

The recommended daily intake for adults is 1,000 mg of calcium. Children and adolescents who are still growing need slightly more – experts recommend 1,100–1,200 mg per day.

Are you expecting a baby or breastfeeding your newborn? Then you should pay even closer attention to your calcium levels, regardless of your lifestyle – your requirement for this vital substance is increased during these phases of life. This is because the mineral is not only important for your health as a mother, but also for the ideal development of your baby.

Calcium deficiency as a vegan: What happens when your body doesn't have enough

Calcium deficiency can lead to various health problems. You should take the following symptoms seriously:

  • Muscle cramps
  • Dry skin
  • Brittle nails
  • Tooth decay, poor dental health
  • Increased PMS symptoms

In the long run, calcium deficiency can also lead to osteoporosis, increasing your risk of bone fractures.

Conclusion: No cow necessary!

Is it possible to provide your body with optimal calcium even as a vegan? Yes, it is! Cow's milk, goat's cheese and the like are not absolutely necessary. What you need instead is a well-structured diet with as many high-quality plant-based or vegan sources of calcium as possible. If you also know all the inhibitors and promoting substances inside out, nothing can go wrong. Want to do even more good for your body? Then vegan calcium supplements that are perfectly tailored to your bone and dental health can be a useful addition.

Frequently asked questions about calcium for vegans

A wholesome vegan diet that ensures an adequate calcium intake does not usually lead to a deficiency of this mineral. Vegans can therefore also meet their daily calcium requirements. It is important to focus on sufficient excellent plant-based or vegan sources of calcium and to take into account inhibiting and promoting ingredients.

To meet your daily calcium requirements as a vegan, you should include enough foods in your diet that are rich in calcium. These include: kale, pak choi, Chinese cabbage, rocket, nettles, broccoli, mineral water, cocoa powder, pistachios, sesame seeds, chia seeds, poppy seeds, flax seeds, almonds, hazelnuts and calcium-enriched soya milk, almond milk, oat milk or tofu. Other beneficial foods include whole grains, pseudograins, legumes, sweet potatoes, leafy vegetables, other nuts and seeds. You should also pay attention to your vitamin D status, as otherwise calcium absorption could be impaired.

The best plant-based sources of calcium include: kale, pak choi, Chinese cabbage, rocket, nettles, broccoli, mineral water, figs, cocoa powder, pistachios, sesame seeds, chia seeds, poppy seeds, flax seeds, almonds, hazelnuts and calcium-enriched soya milk, almond milk, oat milk or tofu.

Sources:

Bickelmann FV, Leitzmann MF, Keller M, Baurecht H, Jochem C. Calcium intake in vegan and vegetarian diets: A systematic review and Meta-analysis. Crit Rev Food Sci Nutr. 2023;63(31):10659-10677. doi: 10.1080/10408398.2022.2084027. Epub 2022 Jun 6. PMID: 38054787. https://pubmed.ncbi.nlm.nih.gov/38054787/

Marrone G, Guerriero C, Palazzetti D, Lido P, Marolla A, Di Daniele F, Noce A. Vegan Diet Health Benefits in Metabolic Syndrome. Nutrients. 2021 Mar 2;13(3):817. doi: 10.3390/nu13030817. PMID: 33801269; PMCID: PMC7999488. https://pubmed.ncbi.nlm.nih.gov/33801269/

Wang T, Masedunskas A, Willett WC, Fontana L. Vegetarian and vegan diets: benefits and drawbacks. Eur Heart J. 2023 Sep 21;44(36):3423-3439. doi: 10.1093/eurheartj/ehad436. PMID: 37450568; PMCID: PMC10516628. https://pubmed.ncbi.nlm.nih.gov/37450568/

Weikert C, Trefflich I, Menzel J, Obeid R, Longree A, Dierkes J, Meyer K, Herter-Aeberli I, Mai K, Stangl GI, Müller SM, Schwerdtle T, Lampen A, Abraham K. Vitamin and Mineral Status in a Vegan Diet. Dtsch Arztebl Int. 2020 Aug 31;117(35-36):575-582. doi: 10.3238/arztebl.2020.0575. PMID: 33161940; PMCID: PMC7779846. https://pubmed.ncbi.nlm.nih.gov/33161940/

West S, Monteyne AJ, van der Heijden I, Stephens FB, Wall BT. Nutritional Considerations for the Vegan Athlete. Adv Nutr. 2023 Jul;14(4):774-795. doi: 10.1016/j.advnut.2023.04.012. Epub 2023 Apr 29. PMID: 37127187; PMCID: PMC10334161. https://pubmed.ncbi.nlm.nih.gov/37127187/

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