Chewable C-500 Natural Orange Juice Flavor

Chewable C-500 Natural Orange Juice Flavor

NOW4.8 (7,387 ratings)
Format:Tablet Quantity: 100 Tablet(s) · 100 servings
Goals

Product analysis

60 out of 100

Chewable C-500 Natural Orange Juice Flavor offers vitamin C for normal immune function and collagen formation in a chewable format, at a reasonable cost.

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

Nutrient Quality36

Ingredient quality cannot be judged confidently across the combination. Most forms are unspecified, and the named vitamin C forms do not establish a quality advantage.

Ingredient Transparency55

Amounts are disclosed, but most forms and vitamin C mixture proportions are missing. Those gaps limit a complete comparison with other chewable supplements.

Value For Money72

The vitamin C contribution offers good value for its cost. Value for the accompanying ingredients remains uncertain.

Customer Satisfaction92

Customer feedback is very positive. The large review pool gives a useful view of satisfaction, without establishing health benefits.

Product Focus66

Vitamin C provides the clearest support for normal immune and collagen functions. The main nutritional benefit is filling an intake gap, while broader skin, eye and inflammation benefits remain limited.

Format
Tablet
Container
100 Tablet(s)
Per serving
$0.09
Customer rating
4.8 · 7,387 ratings
Report analysis

Goals

Everyday Health
Impact
Moderate effect
D+ Ingredient FitF PathwaysB- EvidenceA+ Formulation Logic
Vitamin C · 500 mg

Vitamin C at 500 mg supplies a substantial nutrient contribution relevant to normal antioxidant and immune defenses. Its everyday value is chiefly in meeting nutritional needs; extra intake does not establish infection prevention or added benefit once those needs are met.

How this product is rated for Everyday Health

Ingredient fit53

The assessed contribution sits within a broader formula with other actives that add no independent contribution in these findings. The assessed amount provides partial coverage of the saved dose comparison.
Goal fit
The assessed contribution sits within a broader formula with other actives that add no independent contribution in these findings.
Dose adequacy
The assessed amount provides partial coverage of the saved dose comparison.

Pathways17

The strongest saved contribution concerns antioxidant and immune defence, with limited coverage. No assessed health process reaches the saved coverage threshold.
Depth
The strongest saved contribution concerns antioxidant and immune defence, with limited coverage.
Breadth
No assessed health process reaches the saved coverage threshold.

Evidence74

Vitamin C provides the strongest saved evidence contribution at the assessed amount; its scope and limitations still apply. The ingredients meeting the saved amount threshold have preparations accepted by the saved evidence assessment.
Evidence strength
Vitamin C provides the strongest saved evidence contribution at the assessed amount; its scope and limitations still apply.
Studied preparation
The ingredients meeting the saved amount threshold have preparations accepted by the saved evidence assessment.

Formulation logic100

The assessed ingredients can contribute independently or have their required companion present. No ingredient conflict was identified by the saved checks. All ingredients included in the saved dose check reach its minimum threshold.
Partner coverage
The assessed ingredients can contribute independently or have their required companion present.
Conflicts
No ingredient conflict was identified by the saved checks.
Effective doses
All ingredients included in the saved dose check reach its minimum threshold.
Study evidence
Vitamin C Supportive 56 studies
Immunity
Impact
High effect
B- Ingredient FitD- PathwaysA+ EvidenceA+ Formulation Logic
Vitamin C · 500 mg

Vitamin C supports normal immune-cell function, and regular supplementation may modestly shorten colds without reliably preventing them. Its amount in this serving receives a contribution in the saved findings; this is not evidence of greater benefit with increasing intake.

How this product is rated for Immunity

Ingredient fit74

Relevant nutrient amounts contribute, while the formula’s focus and serving quantities determine the saved ingredient finding.
Goal fit
The relevant ingredients dominate this formula, although focus alone does not establish a clinical benefit.
Dose adequacy
The declared serving makes a partial contribution against the saved amount comparisons, which are not clinical benefit thresholds.

Pathways40

The strongest assigned area is innate immune cell activity. These ingredient associations do not establish how much infection risk changes.
Depth
The saved findings emphasize innate immune cell activity; this describes the assigned ingredient roles rather than proven protection against infection.
Breadth
Coverage is concentrated in one immune area, with limited coverage elsewhere.

Evidence100

The evidence supports bounded nutrient functions or preparation-specific findings, rather than a general promise of infection prevention.
Evidence strength
Vitamin C leads the saved evidence finding; its supported role does not establish general infection prevention.
Studied preparation
The saved preparation finding is complete for the included ingredients; it does not establish that this whole product reproduces a clinical regimen.

Formulation logic100

The included ingredients have no missing required partners or configured conflicts. Meeting the saved amount comparisons does not prove a combined clinical benefit.
Partner coverage
No missing required partner limits the included ingredients in the saved findings; this does not demonstrate an added benefit from combining them.
Conflicts
No configured ingredient conflict was identified. This finding does not establish overall safety or cover every possible interaction.
Effective doses
The included ingredients reach the saved minimum amount threshold; this threshold is not proof of a clinically effective immune dose.
Study evidence
Vitamin C Supportive 53 studies
Skin Health
Impact
High effect
B Ingredient FitF PathwaysA+ EvidenceA+ Formulation Logic
Vitamin C · 500 mg

Vitamin C supports collagen formation and wound healing when intake is low. Its disclosed serving amount meets the saved amount reference, but higher intake does not establish extra skin improvement when vitamin C status is adequate. Hydration, barrier and UV-related outcomes are not established by this ingredient alone.

How this product is rated for Skin Health

Ingredient fit80

The relevant ingredients primarily provide nutritional support within a broader formula. Their saved amount findings do not establish extra cosmetic benefit.
Goal fit
Relevant skin ingredients share the formula with ingredients aimed at other needs.
Dose adequacy
The credited amounts meet the saved reference; this does not establish extra benefit above nutritional needs.

Pathways0

The saved findings identify no coverage of the four targeted skin pathways. Nutrient sufficiency is considered separately.
Depth
No targeted pathway receives a contribution from the disclosed ingredients.
Breadth
None of the targeted pathways reaches the saved coverage threshold.

Evidence100

Vitamin C leads the saved evidence finding. The supplied scientific context limits claims to the relevant nutritional role or preparation-specific outcomes.
Evidence strength
Vitamin C provides the strongest saved evidence contribution; this does not establish broad cosmetic improvement.
Studied preparation
The credited preparations meet the saved preparation checks, while the supplied evidence still limits transfer to routine skin outcomes.

Formulation logic100

The credited ingredients need no missing partner, and no configured conflicts were identified. Those findings do not establish added benefit from combining ingredients.
Partner coverage
The credited ingredients can contribute without an additional required partner.
Conflicts
No configured ingredient conflict was identified in the supplied findings.
Effective doses
All credited ingredients meet the saved minimum amount threshold; that threshold is not a proven effective skin dose.
Study evidence
Vitamin C Supportive 53 studies
Impact
Moderate effect
D+ Ingredient FitF PathwaysA- EvidenceA+ Formulation Logic
Vitamin C · 500 mg

Vitamin C may help lower CRP, a marker of inflammation, when that marker is already elevated. A general reduction in inflammation isn't clear for adults without that condition. Taking a larger amount doesn't by itself mean you'll notice less pain or other inflammatory symptoms.

How this product is rated for Inflammation

Ingredient fit53

Vitamin C is the relevant ingredient, with benefits depending on the person's starting inflammation.
Goal fit
Vitamin C is the relevant ingredient, with benefits depending on the person's starting inflammation. Acerola, Flavonoid (mixture has no distinct anti-inflammatory benefit identified here.
Dose adequacy
Vitamin C: 500 mg. These are label-serving amounts, not an assumed daily regimen.

Pathways17

The connection concerns oxidative stress, a process involving reactive molecules; it doesn't promise relief from inflammatory symptoms.
Depth
The connection concerns oxidative stress, a process involving reactive molecules; it doesn't promise relief from inflammatory symptoms.
Breadth
The connection is concentrated in oxidative stress rather than spanning several distinct inflammation-related processes.

Evidence87

Vitamin C's possible effect on CRP depends on elevated starting levels. The vitamin C form is identified, but buffered forms have no clear anti-inflammatory advantage.
Evidence strength
Vitamin C's possible effect on CRP depends on elevated starting levels.
Studied preparation
The vitamin C form is identified, but buffered forms have no clear anti-inflammatory advantage.

Formulation logic100

The relevant ingredient can act without an additional partner. No particular ingredient conflict is identified.
Partner coverage
No additional partner ingredient is required for the relevant ingredient’s individual role.
Conflicts
No particular ingredient conflict is identified.
Effective doses
Vitamin C: 500 mg. These are label-serving amounts, not an assumed daily regimen.
Study evidence
Vitamin C Supportive 50 studies
Impact
High effect
B- Ingredient FitD PathwaysC+ EvidenceA+ Formulation Logic
Vitamin C · 500 mg

Vitamin C provides antioxidant function relevant to eye tissues. The supplied vision findings come from a defined multi-ingredient AREDS regimen in selected people with AMD, rather than vitamin C alone for routine prevention or sharper sight. This serving supplies 500 mg; its amount does not establish that the product reproduces the full regimen or its clinical outcomes.

How this product is rated for Eye Health

Ingredient fit73

Vitamin C make a contribution to the saved ingredient and amount comparisons. Other ingredients give the formula a broader purpose.
Goal fit
Relevant ingredients sit within a broader formula, so the product is less specifically focused on vision support.
Dose adequacy
The declared active amount reaches the supplied comparison plateau; larger amounts do not establish greater vision benefit.

Pathways47

The strongest retained area is retinal and lens antioxidant defense. The remaining vision areas have limited or no retained coverage.
Depth
The strongest retained area is retinal and lens antioxidant defense; this describes the saved ingredient grouping, rather than a demonstrated product-level effect.
Breadth
Coverage is concentrated in retinal and lens antioxidant defense, with no comparable coverage of the other vision areas.

Evidence68

Vitamin C leads the retained evidence comparison. Its relevant population and preparation limits remain important when interpreting any expected vision benefit.
Evidence strength
Vitamin C’s clinical findings concern a defined combination in selected AMD patients, rather than standalone routine vision improvement.
Studied preparation
The retained ingredient preparations match the supplied comparison; this does not mean the complete product reproduces a clinical regimen.

Formulation logic100

The retained ingredients meet the minimum amount comparison, with no missing required partner or configured conflict. These findings do not establish clinical efficacy of the complete formula.
Partner coverage
No required partner is missing among the retained ingredients; this does not establish a complete AREDS regimen.
Conflicts
No configured ingredient conflict was identified in the supplied facts.
Effective doses
The retained ingredients meet the supplied minimum amount comparison, which is not a proven threshold for better vision.
Study evidence
Vitamin C Disputed 24 studies

Ingredients

IngredientAmount per servingScore
Calories
5 Calorie(s)
Total Carbohydrates
1 Gram(s)
Vitamin C (Ascorbic Acid, Sodium Ascorbate)
500 mg 81
Sodium
40 mg
Acerola powder
5 mg
Citrus Bioflavonoid Complex
5 mg
Gluten Free Adults 18–50 Vegan Kosher Vegetarian
Report overview
B+ Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyB+ Value
A serving provides 500 mg vitamin C as sodium ascorbate, a buffered mineral form. The whole-product price works out to about $0.20 per gram of vitamin C.
How this ingredient is rated

Active Ingredient Quality & Bioavailability83

Vitamin C comes from sodium ascorbate, a buffered mineral form.
Vitamin C Chemical Form & Delivery System
Sodium ascorbate is the named mineral-ascorbate source.
Gastric Comfort & pH Balance
Sodium ascorbate is a buffered mineral form; that does not establish a measured product pH.

Dose, Safety & Label Transparency79

The serving contains 500 mg vitamin C and its source is identified. A sweetener is flagged in the available information.
Optimal Dosage Targeting
The serving provides 500 mg vitamin C.
Purity & Excipient Quality
A sweetener is flagged in the available information; its type and amount are not specified here.
Mineral & Source Transparency
The 500 mg vitamin C amount and 40 mg sodium amount are recorded; the sodium need not all come from the ascorbate.

Value80

The whole-product price is about $0.20 per gram of vitamin C.
Price per Gram of Vitamin C
The whole-product price is about $0.20 per gram of vitamin C.
Report alternatives

Sources

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

  1. Dietary intake and blood concentrations of antioxidants and the risk of cardiovascular disease, total cancer, and all-cause mortality: a systematic review and dose-response meta-analysis of prospective studies.
    Aune D; Keum N; Giovannucci E; Fadnes LT; Boffetta P; Greenwood DC; Tonstad S; Vatten LJ; Riboli E; Norat T · The American journal of clinical nutrition · 2019
    Meta-analysis69 studies pooledEveryday Health forVitamin C
  2. Scientific Opinion on the substantiation of a health claim related to vitamin C and increasing non haem iron absorption pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusEveryday Health forVitamin C
  3. Vitamin C Depletion and All-Cause Mortality in Renal Transplant Recipients.
    Sotomayor CG; Eisenga MF; Gomes Neto AW; Ozyilmaz A; Gans ROB; Jong WHA; Zelle DM; Berger SP; Gaillard CAJM; Navis GJ; Bakker SJ · Nutrients · 2018
    Cohort study598 participantsEveryday Health forVitamin C
  4. Associations of Serum Biomarkers of Fruit and Vegetable Intake With the Risk of Cause-Specific Mortality and All-Cause Mortality: A National Prospective Cohort Study.
    Pu L; Zhang R; Wang X; Zhao T; Sun H; Han L · Frontiers in nutrition · 2022
    Cohort study12,530 participantsEveryday Health forVitamin C
  5. Relation between plasma ascorbic acid and mortality in men and women in EPIC-Norfolk prospective study: a prospective population study. European Prospective Investigation into Cancer and Nutrition.
    Khaw KT; Bingham S; Welch A; Luben R; Wareham N; Oakes S; Day N · Lancet (London, England) · 2001
    Cohort study19,496 participantsEveryday Health forVitamin C
  6. Role of Oral Vitamin 'C' on Astigmatic Errors in Phacoemulsification.
    Mohan S; Sah K; Khattri M; Ahmad L; Sachan SK · Current eye research · 2021
    Randomized trial400 participantsEye Health forVitamin C
  7. Ascorbic acid metabolites are involved in intraocular pressure control in the general population.
    Hysi PG; Khawaja AP; Menni C; Tamraz B; Wareham N; Khaw KT; Foster PJ; Benet LZ; Spector TD; Hammond CJ · Redox biology · 2019
    Observational studyEye Health forVitamin C
  8. Nutritional modulation of cataract.
    Weikel KA; Garber C; Baburins A; Taylor A · Nutrition reviews · 2014
    Narrative reviewEye Health forVitamin C
  9. Dietary n-3 Fatty Acid, α-Tocopherol, Zinc, vitamin D, vitamin C, and β-carotene are Associated with Age-Related Macular Degeneration in Japan.
    Aoki A; Inoue M; Nguyen E; Obata R; Kadonosono K; Shinkai S; Hashimoto H; Sasaki S; Yanagi Y · Scientific reports · 2017
    Case-control study530 participantsEye Health forVitamin C
  10. Adherence to a Mediterranean diet, lifestyle and age-related macular degeneration: the Coimbra Eye Study - report 3.
    Raimundo M; Mira F; Cachulo MDL; Barreto P; Ribeiro L; Farinha C; Laíns I; Nunes S; Alves D; Figueira J; Merle BM; Delcourt C; Santos L; Silva R · Acta ophthalmologica · 2019
    Case-control study883 participantsEye Health forVitamin C
  11. Vitamin C and contribution to the normal function of the immune system: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusImmunity forVitamin C
  12. Therapeutic effects of high-dose vitamin C supplementation in patients with COVID-19: a meta-analysis.
    Sun L; Zhao JH; Fan WY; Feng B; Liu WW; Chen RQ; Ban C; Dang AG; Wang M; Luo KT; Zhou GY; Yu FF; Ba Y · Nutrition reviews · 2024
    Meta-analysis2,334 participants14 studies pooledImmunity forVitamin C
  13. Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
    Abioye AI; Bromage S; Fawzi W · BMJ global health · 2021
    Meta-analysisImmunity forVitamin C
  14. New evidence for antioxidant properties of vitamin C.
    Vojdani A; Bazargan M; Vojdani E; Wright J · Cancer detection and prevention · 2001
    Randomized trial20 participantsImmunity forVitamin C
  15. Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults.
    Calder PC; Kreider RB; McKay DL · Nutrients · 2025
    Systematic review13 studies pooledImmunity forVitamin C
  16. Efficacy of Vitamin C as Glucocorticoid Substitute for Reducing Pain and Inflammation After Total Hip Arthroplasty: A Randomized Controlled Trial.
    Jiang W; Xu H; Jiang X; Zhan Y; Ju Y; Xie J; Huang Z; Huang Q; Pei F · The Journal of bone and joint surgery. American volume · 2025
    Randomized trial107 participantsInflammation forVitamin C
  17. The Impact of Vitamin C on Analgesic, Anti-inflammatory, and Hemostatic Outcomes After Total Hip and Knee Arthroplasty: A Systematic Review and Meta-Analysis.
    Moftakhari Hajimirzaei S; Bagherzadeh Cham M; Dolikhani M; Tabatabaee SM; Ebrahimpour A · The archives of bone and joint surgery · 2026
    Meta-analysis1,162 participants10 studies pooledInflammation forVitamin C
  18. The impact of vitamin C supplementation on the perioperative outcomes after total hip and knee arthroplasty: a systematic review and meta-analysis.
    Liu X; Guo J; Li Y; Yang Y; Liu M; Gao Q; Yang Y; Wu X; Yue C · BMC musculoskeletal disorders · 2026
    Meta-analysis852 participants8 studies pooledInflammation forVitamin C
  19. Therapeutic Impact of Ascorbic Acid on Oral and Periodontal Tissues: A Systematic Literature Review.
    Ruzijevaite G; Acaite E; Jagelaviciene E · Medicina (Kaunas, Lithuania) · 2025
    Systematic review811 participants17 studies pooledInflammation forVitamin C
  20. Oral vitamin C administration reduces early recurrence rates after electrical cardioversion of persistent atrial fibrillation and attenuates associated inflammation.
    Korantzopoulos P; Kolettis TM; Kountouris E; Dimitroula V; Karanikis P; Pappa E; Siogas K; Goudevenos JA · International journal of cardiology · 2005
    Randomized trial44 participantsInflammation forVitamin C