21st Century
Highly Absorbable Calcium Citrate +D 20% Free
Single Vitamin and Mineral60 servings
1 of 2 actives reach a studied dose, 1 falls short.
Dose 1 of 2 reach a studied dose
- Sugar Free
How it scores
Overall
D
Evidence
A
Dose
C
Formulation
D
What's in it, judged
Supplement Facts
Serving Size: 2-4 Caplet(s)
60 per container
- Vitamin D3 as Cholecalciferol 400 IU 100%
- Calcium as Calcium Citrate 630 mg 63%
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.
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.
Does the dose do anything?
-
Vitamin D3
Below the studied range400 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 dose0.63 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
