Corals, Marble, and the Great Pyramid of Giza: 10 Facts About Calcium You Didn't Know

Calcium is more than just the mineral that builds strong bones — it plays a vital role in nearly every bodily function. While most of us associate calcium with dairy products and healthy teeth, there’s a lot more to this essential nutrient. 

From Roman marble statues and Egyptian pyramids to the ocean bottom and deep caves — in this article, we’re diving into ten surprising facts about calcium, its essential health benefits, calcium-rich foods, and even herbs that naturally support your calcium intake — many of which may already be part of your daily routine.

10 Fun Facts About Calcium

1. Calcium (and its compounds) might look like a rock, but it’s actually a metal. 

2. It’s the most abundant mineral in the body. There is about 1 kg of calcium in your body, and 99% of it is stored in your bones and teeth. The remaining 1% plays a crucial role in muscle contraction, nerve signaling, and blood clotting.

3. Corals, shells, and sea urchin spines are made of calcium — just like your skeleton.

4. Vitamin D and magnesium are calcium’s best friends. Without adequate vitamin D and magnesium, your body can’t properly absorb or use calcium.

5. You can find calcium compounds deep in caves — in stalactites and stalagmites. Or high in the sky — it produces orange flame colors in fireworks.

6. Calcium compounds were used in Ancient Rome (to create marble statues) and in Ancient Egypt (to build pyramids and pharaoh tombs).

7. Your bones constantly rebuild themselves. Every few years, your skeleton completely renews itself. Calcium is vital for this ongoing process of bone remodeling.

8. Caffeine can impact calcium absorption. Enjoy your espresso cappuccino in moderation to maintain healthy calcium absorption.

9. Calcium is involved in hormonal signaling. Calcium ions help cells communicate with each other, including cells involved in hormone release and response.

10. Calcium isn’t made by the body. Despite its importance, your body doesn’t produce calcium — it must come from your diet or some of the best calcium supplements.
    
    

Calcium Benefits for Health

Healthy Bones

Calcium is essential for maintaining bone density and strength throughout life. It helps keep the skeletal structure solid. Combined with weight-bearing exercise and nutrients like vitamin D, calcium is your lifelong bone support.

Nerve Function

Calcium ions transmit messages between the brain and body and are key in nerve impulse conduction, helping ensure the nervous system functions smoothly.

Muscle Function

Every time your muscles contract — whether you’re lifting weights or simply blinking — calcium is involved. It's vital for coordinating muscle contractions and relaxation, including heart muscle.

Teeth and Gum Health

Beyond bones, calcium helps keep teeth strong and gums healthy. It supports the structural integrity of the jawbone and supports the maintenance of tooth enamel.

Menstrual Comfort

Some studies suggest that calcium supplementation may promote overall menstrual comfort. It may help maintain overall hormonal balance and promote a healthy inflammatory response linked to monthly cycles.

Foods Rich in Calcium

Milk, cheese, or yogurt – these products first occur when we think about calcium-rich foods. But what about looking beyond dairy? These whole foods provide excellent natural sources of calcium:

• Chia seeds – Tiny but mighty, loaded with calcium and omega-3s. Add some to your porridge or yogurt to enrich them with calcium.
  

• Almonds – A handful packs a powerful calcium punch. It’s a great snack, or you can use it to add extra flavor to your bakery or cereals.
  

• Sardines (with bones) – Canned sardines offer one of the most absorbable forms of calcium. This fish contains a lot of tiny edible bones which are a rich source of this mineral.
  

• Tofu (calcium-set) – A great plant-based source for vegetarians. Salads or sandwiches – whatever you choose, it will be enriched with calcium.
  

• Kale and Collard Greens – Dark leafy greens with highly bioavailable calcium. Add them to your salads to consume more calcium – and dietary fiber!
  

• Sesame seeds – Often overlooked but rich in minerals. They are great in salads or sauces.
  

• Figs – Both dried and fresh are naturally calcium-rich.
  

Tip: Pairing calcium-rich foods with vitamin D (like mushrooms or sunlight exposure) supports absorption of the mineral.

Herbs Rich in Calcium

Nature offers a bounty of herbs that support calcium intake, many of which are already used in herbal wellness routines.

Watercress

One of the most nutrient-dense plants, watercress offers a solid dose of calcium, along with vitamins A, C, and K. There are also a lot of watercress benefits to skin.

It’s an excellent green to add to your meals – from salads and smoothies to soups and pesto. You can also consume it in a Watercress Tincture or Watercress Capsules.

Tongkat Ali

While better known for supporting energy and stamina, Tongkat Ali also contains minerals, including calcium. This herb is often used to support male vitality but offers broader mineral benefits, too: read more to explore what are its benefits and find out about Tongkat Ali vs. Ashwagandha.

You can easily consume it in a Tongkat Ali Tincture. 

Maca

Grown in the Andes, Maca root is rich in calcium, potassium, and magnesium. It is one of beneficial herbs for men’s health and one of common herbs for natural health. 

Traditionally used to support energy and hormonal health, its mineral content also supports bone and muscle function.

You can add Maca powder to smoothies, oatmeal, or baked dishes. Another way to consume it is by taking a Maca Tincture.

Stinging Nettle Leaf

A classic herb in herbalism, nettle leaf is packed with calcium and magnesium. It’s often used as a nourishing tonic, especially in teas, to support joint and bone health.

Stinging Nettle is one of the herbs your body needs in each season. It’s an excellent addition to salads or soups. You can also consume it in a Stinging Nettle Leaf Tincture. 

Fenugreek

Used for centuries in traditional medicine, fenugreek seeds are another plant-based calcium source. They also support digestion and women’s health, making them a valuable herb in daily wellness routines.

Fenugreek is one of the herbs to help your hair to be strong and beautiful. Add these seeds to curries or stews or infuse them with herbal teas. You can also take them in a Fenugreek Tincture.

Conclusion

Calcium does far more than you may have realized — from building bones to helping muscles move and supporting a steady mood. By nourishing your body with calcium-rich foods and herbs, you're giving it the foundation it needs to thrive through every stage of life.

While dairy often takes center stage, the plant world offers diverse sources of calcium, many of which also support other aspects of your well-being. Whether you're sipping nettle tea, enjoying a handful of almonds, or exploring herbal formulas, there's a natural way to bring more calcium into your life.

Stay connected with nature — and your health — with every mindful bite and herbal cup.