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Garden of Life Raw Calcium — view 1 of 5
Garden of Life

Garden of Life Raw Calcium Supplement for Women and Men - Vitamin Code Made from Whole Foods with Magnesium, K2, Vitamin D3 and Vitamin C plus Probiotics for Digestion, 120 Capsules

4.7· 6,199 Amazon reviews
$37.33$35.46with Subscribe & Save

$1.24/serving

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Price verified Apr 22, 2026

Not evaluated by the FDA · Individual results may vary · Consult a healthcare provider before use

Our verdict

756mg calcium from algae + vitamin D3 (1,600 IU) + K2 + magnesium per serving of Plant-Based Calcium from Algae (Algas Calcareas) per capsule from Garden of Life. Best for…

Third-Party TestedCapsuleSubscribe & SaveClinical Dose

Why we recommend this

Algae-derived calcium provides a whole-food mineral matrix with 73 trace minerals naturally present in the algae. Includes both vitamin D3 (1,600 IU) and vitamin K2 (MK-7) — the two most important cofactors for directing calcium to bones. Also includes magnesium, strontium, and vanadium for comprehensive bone support. Non-GMO Project Verified and third-party tested.

Check for interactions

Already taking other supplements or prescription medications? Add them below to check for documented interactions, severity, and clinical guidance.

Our database currently documents 137+ supplement and drug-category interaction pairs. Combinations not flagged here may still interact — always consult your healthcare provider before combining supplements, especially with prescription medications.

What to watch out for

Requires 5 capsules per serving. Most expensive option. Algae calcium has less clinical absorption data than citrate. High pill burden may reduce compliance.

Dose & form

Serving
756mg calcium from algae + vitamin D3 (1,600 IU) + K2 + magnesium per serving
Form
Capsule
Clinical range
500-600mg supplemental calcium, 1-2 times daily
Dose adequacy
Full
Supply
30 servings · $1.24/serving
UPC
658010113908

Who it's best for

Best overall plant-based calcium with full cofactors

Who should skip it

Budget shoppers or those preferring a simple single-ingredient calcium.

Pros

  • Algae-derived with 73 trace minerals
  • Includes D3 + K2 + magnesium
  • Non-GMO Project Verified
  • Whole-food mineral matrix

Cons

  • Requires 5 capsules per serving
  • Premium price ($0.68/serving)
  • Less absorption data than citrate
  • High pill burden

What customers say

4.7★ across 6,199 Amazon reviews. The most common questions from shoppers: re any potential interactions with medications, re any side effects from long-term use, and cause any digestive issues or side effects. Full answers in the FAQ below.

Frequently Asked Questions

What is the clinical dose for Plant-Based Calcium from Algae (Algas Calcareas)?

Clinical trials typically use 500-600mg supplemental calcium, 1-2 times daily. Garden of Life Raw Calcium delivers 756mg calcium from algae + vitamin D3 (1,600 IU) + K2 + magnesium per serving, which we classify as Full relative to that range.

How does Garden of Life Raw Calcium compare to similar Capsule?

See the "Also consider" section below for two alternatives. Choose based on form preference (Capsule vs alternatives), dose adequacy, and third-party testing.

Is Garden of Life Raw Calcium third-party tested?

Yes — Third-Party Tested, Non-GMO Project Verified. Third-party testing verifies ingredient identity and label accuracy.

Does this work with Amazon Subscribe & Save?

Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.

Are there any potential interactions with medications?

Calcium supplements may interact with thyroid medications (levothyroxine), antibiotics (tetracyclines, fluoroquinolones), and bisphosphonates — space doses 2-4 hours apart. The vitamin D3 in this product may interact with thiazide diuretics. Consult your physician if taking any prescription medications.

Are there any side effects from long-term use?

Garden of Life Raw Calcium provides 756mg calcium per serving, which is within safe limits when combined with dietary intake totaling 1,000-1,200mg daily. The inclusion of vitamin K2 helps direct calcium to bones rather than soft tissues, reducing long-term cardiovascular concerns associated with calcium supplementation.

Does it cause any digestive issues or side effects?

Algae-derived calcium is generally gentler on the stomach than calcium carbonate. The whole-food matrix may cause mild bloating initially. The product includes magnesium, which can have a mild laxative effect. Most users tolerate this formula well.

Can it be taken with other supplements or vitamins?

This product already includes vitamin D3, vitamin K2, magnesium, and 73 trace minerals — reducing the need for additional supplements. Space from iron supplements by 2+ hours. The comprehensive formula serves as a bone health foundation.

Are there any specific instructions for taking it safely?

Take 5 capsules daily with or without food. Garden of Life recommends dividing the dose if desired. Do not exceed the recommended serving. Those with kidney disease or hypercalcemia should consult a physician before supplementing calcium.

How long until benefits are typically experienced?

Calcium supplementation supports bone health over the long term — measurable bone density improvements typically require 12+ months of consistent use along with weight-bearing exercise and adequate vitamin D. The included vitamin D3 supports calcium absorption from the first day.

Also consider

Part of this guide

Best Calcium Supplements

As an Amazon Associate, we earn from qualifying purchases. Some links below are affiliate links — this doesn't affect our editorial independence or product ratings. How we evaluate products

This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer