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Shark Cartilage 750 mg

4.7
★ ★ ★ ★ ★
(833 ratings)
Calcium 1000 mg
Protein (unspecified) 2 Gram(s)
Product Image
Score68
Better package value does not resolve the unknown calcium form, oversized serving, or heavy capsule burden.
How scoring works
Capsule
Quantity:300 Capsule(s) • (50 servings)
Goals:
Bone Health

Score 68

Better package value does not resolve the unknown calcium form, oversized serving, or heavy capsule burden.
How scoring works
$28.90($0.57 per serving)
iHerb
$ 30.62
Vitacost
$ 31.79
Daily Vita
$ 28.90
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Analysis

Shark cartilage provides a large stated calcium amount with some protein and mucopolysaccharides. The larger package supports more consistent use and better value than the smaller version.

No calcium compound is identified, so expected absorption cannot be assessed. The full serving is also larger than the most efficient per-dose range and would be better divided.

Six capsules daily remain a significant convenience problem. Users mainly interested in calcium or bone health can get clearer forms and easier dosing from a focused mineral formula.

Who is it for
  • Regular users of shark cartilage
  • Adults seeking cartilage-derived material
  • People comfortable with multiple capsules
Best for
  • Longer-term cartilage supplementation
  • Divided calcium intake
  • Animal-derived cartilage support

Pros

  • Large calcium amount
  • Cartilage quantity is stated
  • Longer supply
  • Simple formulation

Cons

  • Calcium form is not disclosed
  • Six-capsule serving
  • Full amount is too large at once
  • Not a comprehensive bone formula

Warnings

  • Avoid use with a fish allergy because the supplement is derived from shark cartilage.
  • The product is not suitable for vegetarian or vegan diets.

Nutrient quality

61 Moderate impact

Substantial calcium gives the product some bone relevance. Undefined mineral form, a heavy capsule serving, and weak added value from shark cartilage limit quality.

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Ingredient transparency

72 High impact

Some core nutrition amounts are clear enough to evaluate. Missing complete ingredients, use directions, or blend details create meaningful gaps.

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Customer satisfaction

69 High impact

Aggregate satisfaction data are favorable and supported by substantial volume. Specific firsthand comments were not supplied, leaving repeated complaints and purpose fit uncertain.

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Value for money

71 High impact

Formula weaknesses limit value for routine use. Serving economics and formulation trade-offs keep it from standing out.

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Goals

Bone Health
Impact
Moderate effect
C Goal FitD- Strength of SupportD CoverageD Formula Quality
Calcium · 1000 mg

The clearly stated calcium amount gives direct structural support, but its chemical form is not disclosed. A large single serving may reduce absorption efficiency despite the substantial amount.

Shark cartilage adds protein and matrix material, yet evidence for it as targeted bone support is limited compared with established calcium cofactors. The six-capsule serving is animal-derived and may be inconvenient or unsuitable for some users.

Study evidence
Calcium Supportive 144 studies

Ingredients

IngredientAmount per serving
Calories
10 Calorie(s)
Total Carbohydrates
1 Gram(s)
Protein
2 Gram(s)
Calcium
1000 mg
Sodium
55 mg
Shark Cartilage (Mucopolysaccharides)
4.5 Gram(s)
Gluten Free Adults 18–50 Dairy Free
Report overview
Calcium · 1000 mg OverallScore48
F Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyD+ Value

The 1,000 mg calcium amount is clearly stated, but its chemical form is missing and the dose is too large for efficient absorption at once. Shark cartilage supplies the calcium in a six-capsule serving and makes the formula unsuitable for vegetarians. The larger package improves value, though the serving cost remains above the collection median.

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Sources

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

  1. Associations of dietary calcium intake with metabolic syndrome and bone mineral density among the Korean population: KNHANES 2008-2011.
    Kim MK; Chon SJ; Noe EB; Roh YH; Yun BH; Cho S; Choi YS; Lee BS; Seo SK · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2018
    Cross-sectional study14,705 participantsBone Health forCalcium
  2. Calcium and osteoporosis.
    Nordin BE · Nutrition (Burbank, Los Angeles County, Calif.) · 1998
    Meta-analysis20 studies pooledBone Health forCalcium
  3. 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
  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