Foster & Thrive Calcium 1000 mg Plus Vitamin D Bone Strength supplement bottle
Foster & Thrive

Calcium 1000 mg Plus Vitamin D Bone Strength

What We Researched
7 active ingredients analyzed · 10 inactive ingredients decoded · 1 retailer compared · Last updated: Mar 2026
51
Product Score Poor

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin D3 (as Cholecalciferol) 20.0 mcg (800 IU) 100%
Calcium (as Calcium Carbonate) 600.0 mg 46%
Magnesium (as Magnesium Oxide) 50.0 mg 12%
Zinc (as Zinc Oxide) 7.5 mg 68%
Copper (as Copper Oxide) 1.0 mg 111%
Manganese (as Manganese Sulfate) 1.8 mg 78%
Boron (as Sodium Borate) 250.0 mcg
Bioavailability Fair

Absorption Rating

  • Vitamin D3 (as Cholecalciferol) Good
  • Calcium (as Calcium Carbonate) Fair
  • Magnesium (as Magnesium Oxide) Poor
  • Zinc (as Zinc Oxide) Poor
  • Copper (as Copper Oxide) Fair
  • Manganese (as Manganese Sulfate) Good
  • Boron (as Sodium Borate) Fair
Other Ingredients Poor

Fillers & Additives

  • Gum Acacia
  • Croscarmellose Sodium
  • Cellulose. Contains <2% Of: Artificial Colors (Fd&c Blue #1, Fd&c Red #40) High
  • Magnesium Silicate
  • Magnesium Stearate
  • Polyethylene Glycol Low
  • Polyvinyl Alcohol
  • Silicon Dioxide
  • Stearic Acid
  • Titanium Dioxide High
Efficacy Fair

Dosage Analysis

  • Vitamin D3 (as Cholecalciferol) 20.0 mcg (800 IU) Effective
  • Calcium (as Calcium Carbonate) 600.0 mg Effective
  • Magnesium (as Magnesium Oxide) 50.0 mg Under-dosed
  • Zinc (as Zinc Oxide) 7.5 mg Under-dosed
  • Copper (as Copper Oxide) 1.0 mg Effective
  • Manganese (as Manganese Sulfate) 1.8 mg Effective
  • Boron (as Sodium Borate) 250.0 mcg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin D3 (as Cholecalciferol) 20.0 mcg (800 IU) 100%
Calcium (as Calcium Carbonate) 600.0 mg 46%
Magnesium (as Magnesium Oxide) 50.0 mg 12%
Zinc (as Zinc Oxide) 7.5 mg 68%
Copper (as Copper Oxide) 1.0 mg 111%
Manganese (as Manganese Sulfate) 1.8 mg 78%
Boron (as Sodium Borate) 250.0 mcg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gum Acacia Safe

It is used as a thickener, binder, or emulsifier.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Cellulose. Contains <2% Of: Artificial Colors (Fd&c Blue #1, Fd&c Red #40) Unknown
Magnesium Silicate Generally_safe

It is used to improve powder flow and prevent clumping.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Polyethylene Glycol Caution

It is used as a binder, coating agent, or to improve solubility.

Polyvinyl Alcohol Generally_safe

It is used as a coating for tablets or capsules.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Titanium Dioxide Caution

Used as a whitening agent in tablet coatings and capsules.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$13$12$11$10$9 $11.41
Target

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

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Frequently Asked Questions
Is Foster & Thrive Calcium 1000 mg Plus Vitamin D Bone Strength a good supplement?

Foster & Thrive Calcium 1000 mg Plus Vitamin D Bone Strength received a product quality score of 51/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 7 active ingredients with 60 servings per container. Of the 10 inactive ingredients, 5 are rated safe and 2 are flagged for review.

What are the ingredients in Foster & Thrive Calcium 1000 mg Plus Vitamin D Bone Strength?

Foster & Thrive Calcium 1000 mg Plus Vitamin D Bone Strength contains 7 active ingredients: Vitamin D3 (as Cholecalciferol) (20.0 mcg (800 IU)), Calcium (as Calcium Carbonate) (600.0 mg), Magnesium (as Magnesium Oxide) (50.0 mg), Zinc (as Zinc Oxide) (7.5 mg), Copper (as Copper Oxide) (1.0 mg), Manganese (as Manganese Sulfate) (1.8 mg), and 1 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Foster & Thrive Calcium 1000 mg Plus Vitamin D Bone Strength safe to take?

Foster & Thrive Calcium 1000 mg Plus Vitamin D Bone Strength has been analyzed for ingredient safety across all its components. Of 10 inactive ingredients, 5 are rated safe. 2 ingredients are flagged for review: Polyethylene Glycol, Titanium Dioxide. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

What is magnesium good for?

Magnesium Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding magnesium good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

How much magnesium per day?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What is zinc good for?

Zinc Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding zinc good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.