7 Best Calcium Supplements for Osteoporosis 2022

Osteoporosis is a health condition that develops when a person loses a significant amount of bone density. It takes years to develop, and is frequently only discovered after a bone breaks due to a fall or other unexpected incident.

Studies have shown that certain supplements, including calcium, may help treat or prevent osteoporosis. Moreover, your body cannot make calcium, so you need to get the calcium through your diet or from supplements.

In addition to calcium, some supplements also combined it with other vitamin that promote bone health, for example Vitamin D. Studies showed that combination of calcium and vitamin D supplementation, was effective in the preventive treatment of osteoporosis in people aged 50 years or older. The treatment was associated with a reduced rate of bone loss, fracture risk reduction.

For best therapeutic effect, they recommend minimum doses of 1200 mg of calcium, and 800 IU of vitamin D (for combined calcium plus vitamin D supplementation).  

Two Main Types of Calcium Supplement

The two main types of calcium in dietary supplements are calcium carbonate and calcium citrate. Even though they're both calcium but they have different chemical formulas. Calcium citrate has the chemical formula Ca3(C6H5O7)2 and calcium carbonate has the formula CaCO3.

Calcium Carbonate Vs Calcium Citrate

Calcium carbonate is absorbed best when taken with food. While, calcium citrate can be effectively absorbed on an empty stomach as well as a full stomach. Calcium citrate is more easily absorbed than calcium carbonate by persons with low stomach acid levels - a common condition among older people.

However, a study also shows that a single serving of a calcium carbonate powder is more bioavailable than a single serving of calcium citrate tablets.

Best Calcium Supplements for Osteoporosis

1. Best Calcium Tablets (as Calcium Carbonate) | 21st Century Calcium Supplement 600mg
2. Best Calcium Powder Supplement (as Calcium Carbonate) | NOW Supplements Calcium Carbonate Powder

3. Best Calcium Capsules (as Calcium Citrate) | Pure Encapsulations Calcium Citrate, Unflavored
4. Best Calcium Powder Supplement (as Calcium Citrate) | Nutricost Calcium Citrate Powder (250 Grams)

5. Best Calcium with Vitamin D Softgel | Sundown Calcium with Vitamin D Supplement
6. Best Calcium with Vitamin D Liquid | Nature's Blend Liquid Calcium Citrate with D3
7. Best Calcium with Vitamin D Gummies | Vitafusion Calcium with Vitamin D3 Gummies

1. 21st Century Calcium Supplement 600mg 

21st Century Calcium Supplement 600mg


21st Century Calcium Supplement provides 600mg calcium per tablet. No added sugar, yeast, preservatives or artificial flavors. Gluten free

As a calcium supplement, adults take one (1) tablet with any meal, up to twice daily or as directed by a healthcare provider. Do not exceed recommended dosage. Individual results may vary.

4.7 out of 5 - more than 2,370 global ratings

I was looking for calcium that was 600 mg and was reasonable for the amount of the product...this product has really improved my diagnosis of "moderate" osteoporosis along with VIT D3 (which is usually taken together for this to improve)--in my case it's made a real difference in my hip and lower back pain. There is no TASTE and the tablets are pretty large--but I suspect all calcium tablets are.

2. NOW Supplements Calcium Carbonate Powder

NOW Supplements Calcium Carbonate Powder


- High Percentage of Calcium
Calcium Carbonate is a calcium supplement containing one of the highest concentrations of elemental calcium available. Its high calcium content makes it an excellent form for the support of healthy bones and teeth.*

- Classification/Certification 
Kosher, Vegan, Non-GMO Project Verified, Soy Free. GMP Quality Assured

4.7 out of 5  - more than 1,400 global ratings

NOW Supplements Calcium Carbonate Powder Supplement Reviews
Stuff is amazing. I started taking it and noticed a difference in my sleep I sleep the deepest I have in a long time. My skin the caluses are clearing up on my feet and hands. I also had calcium on the bottom of my feet and that's cleared up also. Pain in my joints is not gone but gone down immensely. The brand Now has worked for me.

3. Pure Encapsulations Calcium (Citrate), Unflavored, 180 Capsules

Pure Encapsulations Calcium (Citrate), Unflavored, 180 Capsules


- Calcium Benefits
Calcium in the citrate forms are highly bioavailable calcium supplements, providing support for bone, cardiovascular and colon health.*

- Pure Quality
Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity.

- Pure Difference
What makes us different isn't just our process or what goes into our supplements -- what we leave out matters, too. Pure Encapsulations products are free from wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.

4.7 out of 5 - more than 2,400 global ratings

Pure Encapsulations Calcium Citrate Supplement Reviews
My husband has bone cancer and I am in risk category for hip and spine breakage from bone thinning. Our doctor just told us to take calcium and I was leary of taking it because of an experience I had before when I tried to take calcium. I had severe digestive upset and quit taking it. We have been taking Pure Encapsulations for several weeks now and neither of us has had any digestive problems , so at this point I would definitely give it 5 stars.

4. Nutricost Calcium Citrate Powder (250 Grams)

- 650mg of calcium citrate per serving (41 servings)
- calcium citrate, strawberry lemonade or unflavored flavor
- 250 or 500 grams of calcium citrate per bottle
- manufactured in a gmp compliant, fda registered facility
- gluten free & non-GMO

4.3 out of 5 - more than 420 global ratings

Nutricost Calcium Citrate Supplement in Powder Form Reviews
I have been using this for a couple of months now and it seems to be a good source of calcium. Yes it is somewhat gritty but I'm pretty sure calcium needs to be. I mix mine into something pleasant tasting so I don't really notice it is there. I would purchase this again.

5. Sundown Calcium 1200mg with Vitamin D3 1000IU (25mcg) / per Serving

Sundown Calcium 1200mg with Vitamin D3 1000IU (25 mcg)


- Immune System Support
Calcium with Vitamin D3 helps your immune system stay strong and ready for action*

- Strong Bones, Teeth, Joints
Calcium forms the building blocks that keep your bones, teeth and joints working properly; vitamin D3 aids calcium absorption*

- Essential Sunshine Vitamin
Limiting your UV/sun exposure makes it hard for your body to produce Vitamin D; this clean health supplement satisfies your body’s need for this essential nutrient*

- Nerve and Muscle Protection
Supports good nerve and muscle health so you can maintain your active lifestyle*

- Clean Health Supplement
Non-GMO and free of artificial flavors; gluten-free, wheat-free, dairy-free, lactose-free. Sundown products are always third-party tested for safety, quality and purity. We are a proudly American company with millions of happy customers since 1977

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.

4.7 out of 5 - more than 5,050 global ratings

My bloodwork came back low calcium, and my endocrinologist recommended I take 1200mg of Calcium and 1000 units of Vitamin D every day. So I came to Amazon to find a good supplement to take. I was MOST CONCERNED about pill size. I HATE large pills!!! Why are vitamins and supplements usually so darn big? 

I went with this brand because the reviews stated they were easy to swallow.  I received the bottle yesterday, and please be advised, the pills are huge. When I saw them, I was like WTF... but also be advised, they truly are easy to swallow! It is not a hard pill. It is soft, and buoyant, and it just goes right down with zero issues. You'll need to take two per day.

6. Nature's Blend Liquid Calcium Citrate 1000mg with D3

Nature's Blend Liquid Calcium Citrate 1000mg with D3


Nature's Blend 16 fl oz Liquid Calcium Citrate 1000mg with Vitamin D3 Blueberry Flavor. Nature's Blend Liquid Calcium Citrate with Vitamin D3 delivers the essential bone building nutrients of 1,000 mg calcium with the added value of vitamin D3. 

This tasty liquid allows for easier digestion and enhances absorption, assimilation and utilization of nutrients. With a great tasting blueberry flavor, this formula is easier to swallow than capsules or tablets. Gluten free. No starch, artificial colors, wheat, yeast or corn added.

4.6 out of 5 - more than 700 global ratings

Nature's Blend Calcium with Vitamin D3 Liquid Supplement Reviews
It tastes much better than I expected, does not have the artificial taste like in other liquid medical products. It goes down easily, does not have a significant aftertaste. It did not cause me any heart burn or stomach upset so I am overall pleased with this product. I was looking for away to get calcium citrate without the large pills. I just bought my second bottle a few days ago and I think I will make this my regular calcium source. Would recommend you give it a try.

7. Vitafusion Calcium 500mg with Vitamin D3 25mcg Gummies

Vitafusion Calcium 500mg with Vitamin D3 25mcg Gummies


Indulge in a delicious calcium treat. A fusion of essential nutrients and natural fruit and cream flavors, two vitafusion™ Calcium gummies provide an excellent source of calcium and vitamin D. Each serving supports bone health with 500 mg of calcium and 1,000 IU of Vitamin D.*

4.7 out of 5 - more than 4,100 global ratings

Vitafusion Calcium with Vitamin D3 Gummies Reviews
With stores being in short supply, I always know I can get what I need here on Amazon and know it is the same exact product I use and purchase on a regular basis. This is the only calcium with vitamin D that I use and my bone density scan shows that it is working for me and my doctor is happy with the product for my use. I can't swallow the hard tablets for other calcium product and find these gummies are easy for me to swallow.


a. Calcium Food Sources

• Dairy foods
• Green leafy vegetables – such as curly kale, okra but not spinach (spinach does contain high levels of calcium but the body cannot digest it all)
• Bread and anything made with fortified flour
• Fish where you eat the bones – such as sardines and pilchards

b. Signs of Calcium Deficiency in Adults

Calcium deficiency in its early stages can not show any symptoms. However, when the condition worsens, symptoms will appear.

Hypocalcemia’s severe signs and symptoms:
– confusion or memory loss
– muscles cramping
– numbness and tingling in the hands, feet, and face
– depression
– hallucinations
– muscular pain
– weak and brittle nails
– easy fracturing of the bones

All areas of the body can be impacted by calcium deficits, which can lead to weak nails, slower hair growth, and fragile, thin skin.

c. Exercise for Osteoporosis Prevention

Source: Youtube | Cone Health

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