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With 19 Years of Experience, NatureCity creates quality nutritional supplements that put science and nature to work for you. All purchases come with a ONE YEAR 100% money back guarantee.


Organic Plant Based Calcium with Vitamin D3 and Vitamin K2

TrueOsteo's advanced bone support formula combines:

• AlgaeCal® USDA Organic Plant Based Calcium and Mineral Complex

• Vitashine® Vegan Vitamin D3

• MenaQ7® Soy Free Vitamin K2

• Ashwagandha Plant Extract

• Orgen-SI™ Organic Silica

The unique TrueOsteo™ formula was designed to help increase bone density, not just slow bone loss.

Single Bottle (One Month Supply)


Organic Plant Based Calcium

The AlgaeCal® in TrueOsteo naturally provides calcium in a form that is easier for the body to use, unlike rock based supplements.

Vegan Vitamin D3

Vitamin D is necessary for calcium to be absorbed efficiently from your stomach to your bloodstream.

Scientifically Backed Vitamin K2

Vitamin K2 is a very important nutrient for keeping calcium in your bones and out of your arteries.

Ashwagandha Plant Extract

High levels of cortisol correlate directly to low levels of bone mineral density. Ashwagandha extract helps support normal levels of cortisol

Annual Change in Bone Mineral Density (BMD)

Source: International Journal of Medicine. Results are group averages - Individual results may vary

AlgaeCal® Calcium Can Help Increase Bone Density - Not Just Slow Bone Loss

What makes AlgaeCal® really unique is, together with vitamin D3, it has been shown to help increase bone mineral density (BMD) starting in as little as six months.

This was demonstrated in a study published in the International Journal of Medicine. The study included 36 women with an average age of 69.5.

For a full year, these women were asked to take a daily supplement containing 750mg of calcium from AlgaeCal® and 1,000 IU (25mcg) of vitamin

On average, the study participants increased their bone mineral density by 1.30% in one year.


One Bottle

$49.97 per bottle




Six Bottles

$41.50 per bottle




Three Bottles

$46.66 per bottle




Recent research has shown vitamin K2 is a very important nutrient for keeping calcium in your bones and out of your arteries, and can help strengthen bones. Unfortunately, other research shows that as much as 97% of the Western population is deficient in vitamin K2 through diet alone.

Unlike many synthetic K2 supplements the MenaQ7® in TrueOsteo™ is made from a natural source, chick peas.

Advanced Bone Support Supplement

Optimizing Bone Health Requires Much More Than Just Calcium and Vitamin D

Supplement Facts

Serving Size: 2 Capsules / Servings Per Container: 60

Per Serving Amount (2 capsules) Per Serving % Daily Value Per Day Amount (4 capsules) Per Day % Daily Value
Vitamin D (as vitamin D3 cholecalciferol) (Vitashine®)

12.5 mg


25 mcg



360 mg


720 mg



30 mg


55 mg


AlgaeCal® (Algas calcareas.sp)

1,285 mg


2,570 mg


Sensoril® (Withania somnifera) (ashwagandha root and leaf extract)

125 mg


250 mg


Organic bamboo shoot extract (75% silica) (Orgen-Si®)

10 mg


20 mg


Boron (as boron amino acid chelate)

1 mg


2 mg


Vitamin K2 (as menaquinone-7) (MenaQ7® CryoCap™ chickpea extract)

90 mcg


180 mg


* Daily value not established

Other ingredients: hypromellose, microcrystalline cellulose, stearic acid, medium chain triglycerides, silica and rice flour.

AlgaeCal® Plant Based Calcium

The plant sourced nutrients in AlgaeCal® are in a “whole food state.” As a result, the calcium gets more readily absorbed by your gut.

Efficacy can be achieved with only 750mg of calcium from AlgaeCal®, instead of the 1,200mg of “rock” calcium found in most supplements.

Vitashine® Vitamin D3

Vitashine® is a plant derived (from lichen) vitamin D3 suitable for vegetarians and vegans. With TrueOsteo you get 1,000 IU (25mcg) of vitamin D3 per day.

MenaQ7® Vitamin K2

MenaQ7® vitamin K2 is soy free and in a recent clinical study was shown to support greater bone density and bone strength.

Sensoril® Ashwagandha Extract

Sensoril® helps protect against the effects of everyday stressors, support energy and joint health, promote mental acuity and concentration, and support normal cardiovascular function.

Orgen-Si® Bamboo Shoot Extract

Orgen-Si™ is a USDA Certified Organic source of silicon (in the form of organic silica) from bamboo shoots. Silicon is essential to healthy bone formation as it helps attract calcium to the bone matrix

TrueOsteo Customer Reviews

best I've found
Written by Deborah C. on 8/26/2020

first osteo tablet that doesn't upset my stomach

Great Calcium Supplement
Written by Linda P. on 7/30/2020

This supplement is not only easy on my stomach, but also has helped me slightly improve my bone density as I age.

Written by Betty T. on 5/7/2020

I’ve been taking TruOsteo for years...this past February I broke my leg in two places. My nutritionist advised me to take 7 a day and so grateful she did. I had another x-ray May 5 and I’m growing new bone and my break is not visible and the other break is filling is nicely!!! My Dr was so excited and so was I. Thank you Nature City...I spread the word every chance I get!!

Healthy Surprise
Written by Hope N. on 11/06/2020

TrueOsteo is the first bone support supplement that had not made me constipated. What a pleasant and healthy surprise.

Written by Mary D. on 5/30/2019

I am 70 years old and I have been using True Osteo for years and my last bone density scan was very good. I also have no side affects with this product either.

Good Choice
Written by Anne on 4/24/2020

I have been taking True Osteo for many years and recently had a DEXA scan which showed my fracture risk is 7%, the same as my first scan 12 years ago, so although I haven't unfortunately reversed my osteoporosis in spite of Nature City's claims for the supplement (thus only 4 stars) I am very pleased it hasn't got any worse. I put this down to True Osteo since I haven't done or taken anything else to account for this satisfactory result.

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