21st Century Highly Absorbable Calcium Citrate +D 20% Free

21st Century · Highly Absorbable Calcium Citrate +D 20% Free

21st Century

Highly Absorbable Calcium Citrate +D 20% Free

Single Vitamin and Mineral60 servings

Mixed our read

1 of 2 actives reach a studied dose, 1 falls short.

Dose 1 of 2 reach a studied dose

  • Sugar Free
Quality

How it scores

$6.994.6 (5,219)

Overall

D

Evidence

A

Dose

C

Formulation

D

The label

What's in it, judged

Supplement Facts

Serving Size: 2-4 Caplet(s)

60 per container

IngredientAmount%DV

Other ingredients: Cellulose, Stearic Acid, Croscarmellose Sodium, Magnesium Silicate, Magnesium Stearate.

Directions: Take two (2) to four (4) caplets daily with any meal for maximum daily results, or as directed by your healthcare provider. Do not exceed recommended dosage.

below the studied range at the studied dose Every ingredient links to our evidence.

Reported interactions

Interacts with:
Phenobarbital ·Tacrolimus ·Sirolimus ·Rifampin ·Phenytoin ·Carbamazepine ·Hydrochlorothiazide ·Primidone
Side effects:
Death ·Hypercalcaemia ·Nephrolithiasis ·Nephrocalcinosis ·Serious adverse events ·Pancreatitis

From research databases. Not medical advice — talk to your physician.

Dose check

Does the dose do anything?

  • Vitamin D3

    Below the studied range

    400 IU / day studies used 600-7,500 IU · 41 studies

    You'd need about 1.5× as much to reach the studied dose.

  • Calcium

    At the studied dose

    0.63 g / day studies used 0.25-2 g · 25 studies

What it's studied for

  • Body mass indexA

    Body mass index

    Weight management

  • Body weightA

    Body weight

    Weight management

  • Bone mineral densityA

    Increase bone mineral density

    Bone density

  • Vitamin D statusA

    Higher vitamin D levels

    Endocrine & hormonal

  • Preterm birthA

    Lower risk of birth before 37 weeks

    Prenatal & pregnancy

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