Klaire Labs/SFI Health

Cal-Assimilate Plus

Cal-Assimilate Plus by Klaire Labs/SFI Health is a multi-form calcium complex combining calcium citrate, calcium malate, and calcium glycinate, chelated and organic acid-bound forms selected for their solubility and absorption characteristics, to support bone density, muscle function, and....

4.5 across 1 sources

May be a fit for

  • Adults seeking calcium absorption support with complementary cofactors
  • Individuals maintaining bone density through calcium and magnesium balance
  • Those supporting musculoskeletal health with multi-mineral calcium formulas
$30.99

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The essentials

A closer look.

Cal-Assimilate Plus by Klaire Labs/SFI Health is a multi-form calcium complex combining calcium citrate, calcium malate, and calcium glycinate, chelated and organic acid-bound forms selected for their solubility and absorption characteristics, to support bone density, muscle function, and cardiovascular health. Formulated for individuals with sensitive digestion or those who have difficulty tolerating standard calcium carbonate supplements.

Why It's Worth Considering: Klaire Labs is a practitioner-grade brand with a longstanding focus on hypoallergenic formulations; this blend pairs multiple calcium forms with cofactors designed to support efficient mineral utilization.

The Apotheca perspective

50+ signals. A clearer standard.

Our curation and trust scoring bring together manufacturing, testing, research, practitioner insight and reviews from across the web.

85OUT OF 100
Manufacturing9898
Lab verification7070
Transparency6363

Our score is an editorial assessment, not a product certification or a guarantee of results.

Klaire Labs/SFI Health - Cal-Assimilate PlusKlaire Labs/SFI Health
Make it part of your day

Make it part of your routine.

Adults: 4 capsules daily with food or as directed by a healthcare professional. Children: As directed by a healthcare professional.

Read the complete label
Inside the formula

Product details

Supplement facts & complete label

Serving Size:
4 Capsules

Amount Per Serving:
Vitamin D3 ... 5mcg
(as cholecalciferol)
Calcium ... 500mg
(as microcrystalline hydroxyapatite, calcium citrate, and tricalcium phosphate)
Phosphorus ... 79mg
(as tricalcium phosphate)
Magnesium ... 200mg
(as Albion® magnesium bisglycinate chelate, magnesium oxide‡ and as magnesium citrate)
Zinc ... 8mg
(as zinc citrate)
Copper ... 1mg
(as copper gluconate)
Manganese ... 2mg
(as manganese sulfate)
Sodium ... 15mg
(from chondroitin sulfate sodium)
Chondroitin Sulfate Sodium ... 150mg
(from bovine cartilage)
Strontium ... 1mg
(as strontium carbonate)
Boron ... 500mcg
(as boron citrate complex)
Silicon ... 400mcg
(from horsetail herb, (Equisetum arvense)

Other Ingredients:
Vegetarian capsule (hydroxypropyl methylcellulose, water), cellulose, and L-leucine.

Free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.

‡Albion® are registered trademarks of Albion® Laboratories, Inc.

Caution: If you are pregnant, nursing, have a medical condition, or taking prescription drugs, consult your physician before using this product. KEEP OUT OF REACH OF CHILDREN.

Label directions

Adults: 4 capsules daily with food or as directed by a healthcare professional. Children: As directed by a healthcare professional.

Open original label ↗Product label and ingredient information for Klaire Labs/SFI Health - Cal-Assimilate Plus

Source: authorized supplier catalog · September 06, 2026. Formulas and labels can change. Check the packaging you receive.

Who it may suit

May be a fit for

  • Adults seeking calcium absorption support with complementary cofactors
  • Individuals maintaining bone density through calcium and magnesium balance
  • Those supporting musculoskeletal health with multi-mineral calcium formulas
  • Practitioner protocols requiring calcium with enhanced assimilation cofactors

Considerations

  • Known allergy to any ingredient (check label)
  • Currently pregnant or breastfeeding (consult healthcare provider)
  • Taking prescription medications (check for interactions)
  • Under 18 years of age (unless recommended by pediatrician)
From across the web

Real reviews. A wider perspective.

Customer reviews, social conversations and expert insights, with every source in view.

4.5/5Aggregate source rating
Marketplaces & brand websites
Amazon, iHerb and direct brand reviews
Social & community
Reddit, X, Instagram and TikTok
Video & creators
YouTube and creator perspectives

Coverage varies by product and brand.

41 product and brand ratings and mentions across 1 sources.

Good to know

A few useful answers.

Research & further reading

More category questions

How should I store this supplement?

Store in a cool, dry place away from direct sunlight. Most supplements are stable at room temperature (59-77°F). Keep the bottle sealed between uses. Check the label for any specific storage requirements — some probiotics and oils require refrigeration.

Can I take this with other supplements?

Most supplements can be taken together safely. However, some minerals compete for absorption (zinc and iron, calcium and magnesium) and should be taken at different times of day. If you're taking prescription medications, consult your healthcare provider about potential interactions.

How long should I take this supplement?

Most supplements benefit from consistent daily use over 2-3 months to achieve full effect. Some (like vitamins and minerals) can be taken indefinitely as part of a daily routine. Others (like specific herbs) may benefit from cycling. Follow the product's recommended protocol or consult a practitioner.

When is the best time to take this?

Fat-soluble supplements (vitamins A, D, E, K, omega-3, CoQ10) should be taken with a meal containing fat. Water-soluble supplements (B vitamins, vitamin C) can be taken anytime. Minerals are generally best absorbed with food. Probiotics should be taken with or just before a meal. Check the product label for specific timing recommendations.

How do I know if this supplement is working?

Track your specific health goals — energy levels, sleep quality, joint comfort, digestion, mood, etc. Most supplements take 2-8 weeks for noticeable effects. For objective measurement, baseline lab tests before starting (and repeat at 3 months) provide definitive evidence. The Gabriel Score incorporates clinical evidence for expected outcomes.

Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.

Klaire Labs/SFI Health - Cal-Assimilate Plus Klaire Labs/SFI Health

Apotheca quality score

85/100

The overall score combines several sources of information. The individual dimensions below show where those signals are stronger or more limited; they are not a simple average of the overall score.

Manufacturing9898
Lab verification7070
Review consensus92.392.3
Practitioner signals5050
Community signals5757
Transparency6363
See available brand signals
✓
Third-party lab tested (heavy metals, contaminants)Pass
✓
GMP-certified manufacturing by Klaire Labs/SFI HealthCertified
✓
Premium ingredient sourcing with bioavailable formsHigh
✓
Clinical evidence available for primary ingredientsAvailable
✓
Clean FDA regulatory recordNo issues
✓
Authorized distribution channel verifiedDirect

Our score is an editorial assessment, not a product certification or a guarantee of results.

How our scoring works ↗