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CASEIN-FX Vanilla

4.5
★ ★ ★ ★ ★
(302 ratings)
Calcium 589 mg
Potassium 100 mg
Protein 25 Gram(s)
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Score70
A substantial casein protein serving and large calcium amount provide slow-digesting protein and bone-related nutrition. A small enzyme matrix does not name its enzymes or activity units.
How scoring works
Quantity:2 Pound(s) • (27 servings)
Goals:
Bone Health

Score 70

A substantial casein protein serving and large calcium amount provide slow-digesting protein and bone-related nutrition. A small enzyme matrix does not name its enzymes or activity units.
How scoring works
$41.64($1.54 per serving)
iHerb
$ 41.64
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Analysis

A substantial casein protein serving and large calcium amount provide slow-digesting protein and bone-related nutrition. Potassium adds a modest mineral contribution within the shake.

A small enzyme matrix does not name its enzymes or activity units. Its digestive value cannot be judged, and complete flavoring and sweetener details are missing.

It fits adults who want a filling casein powder with meaningful calcium. People buying for digestive enzymes or complete label clarity should choose a better-documented option.

Who is it for
  • It fits adults who want a filling casein powder with meaningful calcium
  • People buying for digestive enzymes or complete label clarity should choose a better-documented option
Best for
  • Substantial casein serving
  • Large calcium amount
  • Slow-digesting protein profile

Pros

  • Substantial casein serving
  • Large calcium amount
  • Slow-digesting protein profile

Cons

  • Enzyme matrix lacks individual details
  • Full inactive ingredients are not supplied
  • Moderate rather than leading value

Warnings

  • Casein is derived from milk and is unsuitable for people with milk allergy.
  • Casein or residual lactose can cause digestive discomfort in sensitive users.
  • Calcium may interfere with thyroid medication absorption and should be separated as directed.

Nutrient quality

79 High impact

The formula supplies meaningful protein but is poorly aligned with the stated goal. A very large mineral or carbohydrate entry further weakens suitability.

Ingredient transparency

69 High impact

Core nutrition amounts are visible, but a named matrix hides its components or shows no usable amount. Inactive ingredients and complete preparation directions are also missing.

Customer satisfaction

64 Moderate impact

The aggregate satisfaction signal is moderate and the supplied volume is modest. No specific experience details are supplied to assess repeated complaints, taste, texture, or purpose-related outcomes.

Value for money

63 Moderate impact

The core protein provides some value, but the serving is costly or poorly aligned with the stated use. Weak disclosure or an unbalanced formula further reduces competitiveness.

Report analysis

Goals

Bone Health
Bone Health
Impact
High effect
B+ Goal FitB- Strength of SupportB CoverageA- Formula Quality
Calcium · 589 mg

Calcium and substantial casein protein support both the hard mineral phase and organic bone matrix. The calcium amount is useful, though its chemical form is not disclosed.

Vitamin D and K are absent, so calcium transport and placement are not directly supported. The product works better as bone-relevant protein nutrition than as a complete skeletal supplement.

Study evidence
Calcium Supportive 144 studies

Ingredients

IngredientAmount per serving
Calories
130 Calorie(s)
Total Fat
2.5 Gram(s)
Cholesterol
20 mg
Total Carbohydrates
3 Gram(s)
Protein
25 Gram(s)
Calcium
589 mg
Sodium
30 mg
Potassium
100 mg
Activase Enzyme Matrix
84 mg
Gluten Free Adults 18–50 Kosher
Report overview
Calcium · 589 mg OverallScore56
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value

The calcium amount is well placed for absorption in one serving. Its chemical form is missing, so the expected absorption quality cannot be judged. The high serving cost also makes it poor value when calcium is the main reason for purchase.

View ingredientView products
Potassium · 100 mg OverallScore30
F Active Ingredient Quality & BioavailabilityD Dose, Safety & Label TransparencyF Value

Dairy-derived potassium has an unspecified chemical form, leaving absorption and buffering properties unclear. The amount is close to a standard low-dose supplement and mainly accompanies the protein serving. A relatively costly serving offers poor value for anyone choosing it primarily for potassium.

View ingredientView products
Loading alternative details
75 Performance

Micellar Casein Unflavored

California Gold Nutrition SPORT
<p>Protein (25.00Gram(s)), Calcium (650.00mg), Potassium (0.00mg) offers a stronger or better-defined protein profile than the original's Protein (25.00Gram(s)), Calcium (589.00mg), Potassium (100.00mg). Naturally occurring calcium is high, while amino-acid, sourcing, complete ingredient, and use details are missing.</p>
81 Performance

IsoNatural Pure Whey Protein Isolate Unflavored

ALLMAX
<p>Protein (27.00Gram(s)), Calcium (109.00mg), Potassium (170.00mg) offers a stronger or better-defined protein profile than the original's Protein (25.00Gram(s)), Calcium (589.00mg), Potassium (100.00mg). Value is limited after considering serving quality.</p>
79 Performance

Paleo Thin Egg White Protein 24 g Unflavored

Julian Bakery
<p>Protein (24.00Gram(s)), Calcium (20.00mg), Potassium (370.00mg) offers a stronger or better-defined protein profile than the original's Protein (25.00Gram(s)), Calcium (589.00mg), Potassium (100.00mg). A clean, substantial protein serving supports value despite a moderately high recurring cost.</p>
79 Budget

Casein Protein Elite Series Triple Chocolate

Six Star Pro Nutrition
<p>Lower serving cost still provides Protein (24.00Gram(s)), Calcium (580.00mg), Potassium (220.00mg), compared with the original's Protein (25.00Gram(s)), Calcium (589.00mg), Potassium (100.00mg). Its formula is less directly relevant to heart health, and protein-source detail beyond the product name is limited.</p>
82 Budget

Whey Protein Unflavored

Lake Avenue Nutrition
<p>Lower serving cost still provides Protein (24.00Gram(s)), Calcium (190.00mg), Potassium (170.00mg), compared with the original's Protein (25.00Gram(s)), Calcium (589.00mg), Potassium (100.00mg). Value is favorable after considering serving quality.</p>
75 Budget

Classic ALLWHEY Chocolate

ALLMAX
<p>Lower serving cost still provides Protein (30.00Gram(s)), Calcium (160.00mg), Potassium (360.00mg), compared with the original's Protein (25.00Gram(s)), Calcium (589.00mg), Potassium (100.00mg). Its main role is general protein intake rather than targeted heart support, and the supplied facts omit complete source and ingredient detail.</p>
82 Value

Whey Protein Isolate Unflavored

California Gold Nutrition SPORT
<p>Protein (27.00Gram(s)), Calcium (120.00mg), Potassium (130.00mg) provides stronger value at a lower serving cost compared with the original's Protein (25.00Gram(s)), Calcium (589.00mg), Potassium (100.00mg). Value is fair after considering serving quality.</p>
78 Value

Whey To Go Protein Powder Unflavored

Solgar
<p>Protein (20.00Gram(s)), Calcium (60.00mg), Potassium (210.00mg) provides stronger value at a lower serving cost compared with the original's Protein (25.00Gram(s)), Calcium (589.00mg), Potassium (100.00mg). Value is fair after considering serving quality.</p>
72 Value

Select Protein Amazing Gourmet Vanilla

PEScience
<p>Potassium (10.00mg), Calcium (280.00mg), Protein (24.00Gram(s)) provides useful added breadth for the serving cost compared with the original's Protein (25.00Gram(s)), Calcium (589.00mg), Potassium (100.00mg). Its protein and calcium forms are unspecified, and the premium serving offers limited differentiation.</p>
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Sources

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

  1. Oral potassium supplementation for management of essential hypertension: A meta-analysis of randomized controlled trials.
    Poorolajal J; Zeraati F; Soltanian AR; Sheikh V; Hooshmand E; Maleki A · PloS one · 2017
    Meta-analysis1,213 participants23 studies pooledHeart Health forPotassium
  2. Potassium intake, stroke, and cardiovascular disease a meta-analysis of prospective studies.
    D'Elia L; Barba G; Cappuccio FP; Strazzullo P · Journal of the American College of Cardiology · 2011
    Meta-analysis247,510 participants11 studies pooledHeart Health forPotassium
  3. Effect of Potassium Supplementation on Endothelial Function: A Systematic Review and Meta-Analysis of Intervention Studies.
    D'Elia L; Cappuccio FP; Masulli M; La Fata E; Rendina D; Galletti F · Nutrients · 2023
    Meta-analysis332 participants5 studies pooledHeart Health forPotassium
  4. Serum potassium levels provide prognostic information in symptomatic heart failure beyond traditional clinical variables.
    Toledo CC; Vellosa Schwartzmann P; Miguel Silva L; da Silva Ferreira G; Bianchini Cardoso F; Citelli Ribeiro V; Paim LR; Antunes-Correa LM; Carvalho Sposito A; Matos Souza JR; Modolo R; Nadruz W; Fernandes de Carvalho LS; Coelho-Filho OR · ESC heart failure · 2021
    Cohort study178 participantsHeart Health forPotassium
  5. Calcium and osteoporosis.
    Nordin BE · Nutrition (Burbank, Los Angeles County, Calif.) · 1998
    Meta-analysis20 studies pooledBone Health forCalcium
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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