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Absorbable Calcium 1200 mg Plus Vitamin D3 25 mcg

4.7
★ ★ ★ ★ ★
(485 ratings)
Calcium 1200 mg
Product Image
Score79
An economical high-dose calcium carbonate and vitamin D3 softgel. Its large serving is best divided and may be harder on digestion.
How scoring works
Softgel
Quantity:200 Softgel(s) • (100 servings)
Goals:
Bone Health

Score 79

An economical high-dose calcium carbonate and vitamin D3 softgel. Its large serving is best divided and may be harder on digestion.
How scoring works

Also available as

1 option
100 servings Calcium 1200 mg • 100 Softgel(s) • 50 servings $6.99 ($0.13 per serving)
$12.99($0.12 per serving)
Walmart
$ 12.99
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Analysis

Vitamin D3 complements the high calcium amount and supports mineral absorption. The softgel format includes a little fat that may aid vitamin D uptake.

Calcium carbonate should be taken with food and works less reliably when stomach acid is low. Dividing the full serving can improve use and reduce constipation or stomach discomfort.

Magnesium, vitamin K, and protein-matrix support are absent. The product fits users with a clear calcium gap who value economy and can manage divided dosing.

Who is it for
  • Adults needing substantial calcium
  • Value-focused users
  • People able to split the daily serving
Best for
  • High-potency calcium intake
  • Vitamin D-supported mineral use
  • Budget bone support

Pros

  • Substantial vitamin D3
  • Very strong serving value
  • Clearly identified calcium form

Cons

  • Oversized full calcium serving
  • Carbonate depends on food and stomach acid
  • No magnesium or vitamin K

Warnings

  • Divide the calcium amount if allowed by the directions and take it with food.
  • The large serving may cause constipation, gas, or stomach discomfort.
  • Review total calcium and kidney-stone risk before combining it with a calcium-rich diet.

Nutrient quality

76 High impact

Substantial calcium and vitamin D3 create a direct bone-support formula. The basic calcium form and aggressive load reduce flexibility.

Ingredient transparency

82 Highest impact

The core amounts and implied serving size are easy to identify. Duplicate vitamin D entries, missing non-active ingredients, and absent directions reduce clarity.

Customer satisfaction

71 High impact

The aggregate rating is favorable and backed by a substantial review volume. No specific comments are available to assess recurring problems or real-world fit.

Value for money

89 Highest impact

A long supply and substantial actives provide good value. The aggressive calcium amount makes the serving less broadly suitable.

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Goals

Bone Health
Bone Health
Impact
Highest effect
A+ Goal FitB Strength of SupportB- CoverageA+ Formula Quality
Calcium · 1200 mgVitamin D · 25 mcg

Calcium carbonate provides a large structural-mineral contribution, while 25 mcg vitamin D3 supports calcium absorption. The combination is directly relevant to bone density when total dietary calcium or vitamin D is inadequate.

Calcium carbonate is well disclosed but depends more on food and stomach acid for absorption than citrate. A 1,200 mg supplemental calcium amount may cause constipation and can raise kidney-stone or excess-calcium risk when combined with a calcium-rich diet.

Study evidence
Calcium Supportive 144 studies
Vitamin D Supportive 202 studies

Ingredients

IngredientAmount per serving
Calories
15 Calorie(s)
Total Fat
1 Gram(s)
Vitamin D (Cholecalciferol, Vitamin D3)
 25 mcg
Calcium (Calcium Carbonate)
 1200 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free
Report overview
Calcium (Calcium Carbonate) · 1200 mg OverallScore64
C+ Active Ingredient Quality & BioavailabilityD Dose, Safety & Label TransparencyA+ Value

The clearly stated carbonate source is economical but offers only moderate absorption potential. A 1200 mg serving is inefficient as a single dose and would be more practical when divided. Vitamin D3 adds support, and the low serving cost creates excellent value despite the dosing limitation.

View ingredientView products
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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Calcium supplementation during pregnancy and maternal and offspring bone health: a systematic review and meta-analysis.
    Tihtonen K; Korhonen P; Isojärvi J; Ojala R; Ashorn U; Ashorn P; Tammela O · Annals of the New York Academy of Sciences · 2022
    Meta-analysis1,566 participants7 studies pooledBone Health forCalcium
  2. Calcium supplementation and bone mineral density in postmenopausal women using estrogen replacement therapy.
    Haines CJ; Chung TK; Leung PC; Hsu SY; Leung DH · Bone · 1995
    Randomized trialBone Health forCalcium
  3. Calcium supplementation provides an extended window of opportunity for bone mass accretion after menarche.
    Rozen GS; Rennert G; Dodiuk-Gad RP; Rennert HS; Ish-Shalom N; Diab G; Raz B; Ish-Shalom S · The American journal of clinical nutrition · 2003
    Randomized trial100 participantsBone Health forCalcium
  4. Relationship between bone mineral density changes and risk of fractures among patients receiving calcium with or without vitamin D supplementation: a meta-regression.
    Rabenda V; Bruyère O; Reginster JY · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2011
    Meta-analysis47,365 participants15 studies pooledBone Health forCalcium
  5. Treatment with alendronate plus calcium, alendronate alone, or calcium alone for postmenopausal low bone mineral density.
    Bonnick S; Broy S; Kaiser F; Teutsch C; Rosenberg E; DeLucca P; Melton M · Current medical research and opinion · 2007
    Randomized trial701 participantsBone Health forCalcium
  6. What is the impact of daily oral supplementation of vitamin D3 (cholecalciferol) plus calcium on the incidence of hip fracture in older people? A systematic review and meta-analysis.
    Manoj P; Derwin R; George S · International journal of older people nursing · 2023
    Meta-analysis12,620 participants7 studies pooledBone Health forCalcium
  7. Calcium supplementation prevents seasonal bone loss and changes in biochemical markers of bone turnover in elderly New England women: a randomized placebo-controlled trial.
    Storm D; Eslin R; Porter ES; Musgrave K; Vereault D; Patton C; Kessenich C; Mohan S; Chen T; Holick MF; Rosen CJ · The Journal of clinical endocrinology and metabolism · 1998
    Randomized trial60 participantsBone Health forCalcium
  8. The effects of calcium supplementation (milk powder or tablets) and exercise on bone density in postmenopausal women.
    Prince R; Devine A; Dick I; Criddle A; Kerr D; Kent N; Price R; Randell A · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 1995
    Randomized trial168 participantsBone Health forCalcium
  9. The efficacy of calcium supplementation alone in elderly Thai women over a 2-year period: a randomized controlled trial.
    Rajatanavin R; Chailurkit L; Saetung S; Thakkinstian A; Nimitphong H · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Randomized trial404 participantsBone Health forCalcium
  10. Calcium-enriched foods and bone mass growth in prepubertal girls: a randomized, double-blind, placebo-controlled trial.
    Bonjour JP; Carrie AL; Ferrari S; Clavien H; Slosman D; Theintz G; Rizzoli R · The Journal of clinical investigation · 1997
    Randomized trial149 participantsBone Health forCalcium
  11. Pregnancy vitamin D supplementation and offspring bone mineral density in childhood follow-up of a randomized controlled trial.
    Moon RJ; D' Angelo S; Curtis EM; Ward KA; Crozier SR; Schoenmakers I; Javaid MK; Bishop NJ; Godfrey KM; Cooper C; Harvey NC; MAVIDOS Trial Group · The American journal of clinical nutrition · 2024
    Randomized trial454 participantsBone Health forVitamin D
  12. Vitamin D analogs and bone: preclinical and clinical studies with eldecalcitol.
    Matsumoto T; Takano T; Saito H; Takahashi F · BoneKEy reports · 2014
    Narrative reviewBone Health forVitamin D
  13. Efficacy of vitamin D fortified foods on bone mineral density and serum bone biomarkers: A systematic review and meta-analysis of interventional studies.
    Tangestani H; Djafarian K; Emamat H; Arabzadegan N; Shab-Bidar S · Critical reviews in food science and nutrition · 2020
    Meta-analysis1,786 participants20 studies pooledBone Health forVitamin D
  14. Cholecalciferol Supplementation Attenuates Bone Loss in Incident Kidney Transplant Recipients: A Prespecified Secondary Endpoint Analysis of a Randomized Controlled Trial.
    Tsujita M; Doi Y; Obi Y; Hamano T; Tomosugi T; Futamura K; Okada M; Hiramitsu T; Goto N; Isaka Y; Takeda A; Narumi S; Watarai Y · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2022
    Randomized trial193 participantsBone Health forVitamin D
  15. Vitamin D supplementation and bone health in post-menopausal women: a 24-month randomized controlled intervention with enhanced bioavailability formulations.
    Rasool N; Munir Y · European journal of clinical nutrition · 2026
    Randomized trial612 participantsBone Health forVitamin D