Calcium Citrate

Calcium Citrate

Nature's Way4.8 (2,258 ratings)
Format:Capsule Quantity: 100 Capsule(s) · 50 servings
Goals
$12.49 $0.24 per serving

Product analysis

79 out of 100

Calcium Citrate provides calcium to support normal bone structure when dietary intake falls short. The serving is favorably priced, but the unknown balance of calcium forms makes absorption harder to judge.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality60

The blend includes calcium forms with different absorption potential. Their unknown proportions prevent a confident judgment of how the mix compares with any one form.

Ingredient Transparency80

The total calcium amount and included forms are stated, making the basic serving clear. The amount of each form is undisclosed, so the balance cannot be checked.

Value For Money100

The calcium serving offers favorable value for its cost. The low price does not resolve uncertainty about the balance of forms.

Customer Satisfaction88

Customer ratings are very positive across a substantial set of reviews. They describe satisfaction without establishing absorption or bone outcomes.

Product Focus77

The formula has a clear calcium-focused role in helping fill a dietary gap for normal bone structure. The serving is a contribution toward total intake, and the mix of forms does not establish better bone outcomes.

Format
Capsule
Container
100 Capsule(s)
Per serving
$0.24
Customer rating
4.8 · 2,258 ratings
Report analysis

Goals

Bone Health
Impact
High effect
B+ Ingredient FitD- PathwaysA+ EvidenceB+ Formulation Logic
Calcium · 500 mg
Study evidence
Calcium Supportive 144 studies

Ingredients

IngredientAmount per servingScore
Calcium (Calcium Carbonate, Calcium Citrate, Calcium Malate)
500 mg 82
Gluten Free Adults 18–50 Dairy Free
Report overview
B- Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value
Each serving provides 500 mg of calcium, a substantial amount, at a low cost per serving. It uses Calcium Carbonate, Calcium Citrate and Calcium Malate, but their proportions are unknown. A flow agent is listed.
How this ingredient is rated

Active Ingredient Quality & Bioavailability72

The calcium amount is clearly stated. It uses Calcium Carbonate, Calcium Citrate and Calcium Malate, but their proportions are unknown.
Calcium Form & Absorption Potential
It uses Calcium Carbonate, Calcium Citrate and Calcium Malate, but their proportions are unknown.
Elemental Calcium Transparency
The label states 500 mg of elemental calcium per serving.

Dose, Safety & Label Transparency84

The serving provides 500 mg of calcium. A flow agent is listed.
Absorption-Optimized Serving Dose
The serving provides 500 mg of calcium.
Formulation Purity & Additives
A flow agent is listed.

Value100

The cost per serving is low.
Price Per Serving Efficiency
The cost per serving is low.
Report alternatives

Sources

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

  1. 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
  2. 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
  3. 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
  4. 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
  5. 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