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Caltrate 600+D3 Plus Minerals
SPECIMEN #CALTRATE
Verified
MineralsCaltrate

600+D3 Plus Minerals

America's most recommended calcium supplement uses every budget form: calcium carbonate (needs stomach acid you may lack), magnesium oxide (4% absorption), zinc oxide (poorly absorbed). The minerals are on the label, not in your bones. Add K2 or switch to citrate.

5.0/10
DECENT

Calcium carbonate at 600mg in a single dose exceeds the 500mg absorption threshold, so much goes unabsorbed. Magnesium as oxide (4% absorption) at only 50mg means you're absorbing roughly 2mg. Zinc as oxide is the worst-absorbed form. D3 at 800 IU (20% optimal) is too low. The minerals exist on the label but the forms chosen ensure poor real-world absorption. This is the classic drugstore supplement that looks good on paper but doesn't deliver in your body.

6 ingredientsTablets60 servings
Evidence
7.0
Dosing
3.9
Synergy
6.0
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What We Like

  • Includes copper and manganese (rare in calcium supplements).
  • D3 for calcium absorption.
  • Well-known trusted brand.

Watch Out For

  • Calcium carbonate at 600mg exceeds single-dose absorption max.
  • Magnesium as oxide (4% absorption).
  • Zinc as oxide (poor absorption).
  • No vitamin K2 for calcium direction.

What We Analyzed

600+D3 Plus Minerals Supplement Facts

Verified Supplement Facts

Every dose checked against clinical research

We analyzed the actual supplement facts panel for this product. Every ingredient dose below was cross-referenced with published clinical trials to determine if it matches what studies actually use.

6 ingredients analyzed5 underdosed

Source: Official product page

Ingredient Breakdown

1 adequate5 underdosed
Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
IngredientDoseStatusvs. Clinical
Calcium9.0

Calcium Carbonate

600 mgADEQUATE
60%
600 mg

of 1000mg

ADEQUATE
60%
Vitamin D310.0
20 mcgUNDERDOSED
20%
20 mcg

of 4000IU

UNDERDOSED
20%
Magnesium10.0

Magnesium Oxide

50 mgUNDERDOSED
13%
50 mg

of 400mg

UNDERDOSED
13%
Zinc9.0

Zinc Oxide

7.5 mgUNDERDOSED
50%
7.5 mg

of 15mg

UNDERDOSED
50%
Copper7.0
1 mgUNDERDOSED
50%
1 mg

of 2mg

UNDERDOSED
50%
Manganese8.0
1.8 mgUNDERDOSED
45%
1.8 mg

of 4mg

UNDERDOSED
45%
In our database (click to learn more) Not yet reviewed

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