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Extra Strength Chewable C 1000 mg

Nature Made
4.7
★ ★ ★ ★ ★
(499 ratings)
Vitamin C 1000 mg
Sodium 100 mg
Product Image
Score70
Convenient chewable vitamin C with partial buffering, but added carbohydrate and unclear form duplication reduce formula quality.
How scoring works
Quantity:90 Tablet(s) • (45 servings)
Goals:
Immunity
General Health
Skin Health
Anti-Inflammatory Support

Score 70

Convenient chewable vitamin C with partial buffering, but added carbohydrate and unclear form duplication reduce formula quality.
How scoring works
$9.89($0.21 per serving)
iHerb
$ 9.89
Vitacost
$ 11.89
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Analysis

The chewable supplies a substantial vitamin C amount through ascorbic acid and sodium ascorbate. Partial buffering may improve comfort, although the label presentation makes the exact split between those forms unclear.

Four grams of carbohydrate add considerable delivery overhead to a focused vitamin C product. The 100 mg sodium contribution is clearly shown, but no complementary antioxidant nutrients or useful electrolyte blend broadens the formula.

Chewable delivery can suit people who dislike capsules or powders and the serving value is reasonable. Simpler buffered capsules or powders offer cleaner formulations for users who do not need a chewable.

Who is it for
  • Adults who prefer chewables
  • People seeking a substantial vitamin C amount
  • Users who do not mind added carbohydrate
Best for
  • Tablet-free vitamin C intake
  • General antioxidant support
  • Convenient dosing

Pros

  • Target-range vitamin C serving
  • Partly buffered with sodium ascorbate
  • Accessible chewable format

Cons

  • Carbohydrate-heavy base
  • Exact split between vitamin C forms is unclear
  • No complementary nutrients

Warnings

  • The 100 mg sodium amount may matter on a strict sodium plan
  • High vitamin C intake can cause stomach discomfort or loose stools
  • Frequent chewable use exposes teeth to an acidic, carbohydrate-containing format

Nutrient quality

77 High impact

The serving amount is useful, but the delivery form offers only modest quality advantages. A heavy carbohydrate load weakens the otherwise relevant active profile.

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Ingredient transparency

72 High impact

Conflicting or repeated amount presentation makes the active breakdown difficult to assess. A complete inactive-ingredient list and full use directions are not included in the supplied facts.

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Customer satisfaction

64 Moderate impact

The aggregate rating is very strong with a moderate review base. No specific feedback is supplied to confirm recurring complaints or purpose-related experiences.

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Value for money

64 Moderate impact

The formula provides moderate value for its quality and format. Carbohydrate-heavy delivery or other format overhead reduces core ingredient efficiency.

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Report analysis

Goals

Immunity
Immunity
Impact
High effect
A Goal FitA- Strength of SupportC CoverageC+ Formula Quality
Vitamin C · 1000 mg

A full vitamin C amount directly supports antioxidant defenses and normal immune-cell function. Partial buffering with sodium ascorbate may improve tolerance compared with ascorbic acid alone.

The chewable base contains four grams of carbohydrate and duplicates vitamin C across two listed forms. Clear sodium disclosure helps, but the design remains less streamlined than a simple buffered capsule.

Study evidence
Vitamin C Supportive 53 studies
General Health
General Health
Impact
High effect
A- Goal FitA- Strength of SupportC CoverageB Formula Quality
Vitamin C · 1000 mg

Vitamin C at 1,000 mg provides a full target-range amount for antioxidant and collagen support. Sodium ascorbate adds partial buffering to the chewable ascorbic-acid base.

The active amount and sodium contribution are clear, but the serving includes a notable carbohydrate base. People with a medically prescribed sodium restriction should account for the 100 mg sodium contribution.

Study evidence
Vitamin C Supportive 56 studies
Skin Health
Skin Health
Impact
High effect
B Goal FitB+ Strength of SupportC+ CoverageB+ Formula Quality
Vitamin C · 1000 mg

A large vitamin C serving strongly supports collagen synthesis and antioxidant defense. Partial buffering with sodium ascorbate may improve tolerance compared with ascorbic acid alone.

Repeated quantity entries make the exact split between forms unclear. Chewable carbohydrates and sodium add delivery overhead to an otherwise focused formula.

Study evidence
Vitamin C Supportive 53 studies
Anti-Inflammatory Support
Cellular Defense
Anti-Inflammatory Support
Impact
High effect
D+ Goal FitB+ Strength of SupportD- CoverageA Formula Quality
Vitamin C · 1000 mg

A substantial vitamin C amount supports antioxidant defenses that may indirectly influence inflammatory stress. Partial buffering with sodium ascorbate may improve stomach comfort.

Vitamin C does not directly address the strongest inflammatory pathways in the selected goal. The carbohydrate-heavy chewable format adds bulk without broadening the formula.

Study evidence
Vitamin C Supportive 50 studies
Vision Support
Macular and Blue Light Defense
Vision Support
Impact
Moderate effect
F Goal FitB Strength of SupportD- CoverageA Formula Quality
Vitamin C · 1000 mg

A high vitamin C serving supports antioxidant defense but does not directly target the macula, retina, or lens. Vitamin C contributes to established eye-health combinations, yet it is not a complete vision formula by itself.

Partial buffering and clear sodium disclosure improve usability, while the chewable carbohydrate base adds little value. No carotenoids, zinc, copper, vitamin E, or omega-3 lipids broaden the contribution.

Study evidence
Vitamin C Disputed 24 studies

Ingredients

IngredientAmount per serving
Calories
20 Calorie(s)
Total Carbohydrate
4 Gram(s)
Vitamin C (Ascorbic Acid, Sodium Ascorbate)
 1000 mg
Sodium
100 mg
Adults 18–50
Report overview
Vitamin C (Ascorbic Acid, Sodium Ascorbate) · 1000 mg OverallScore66
C Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyD+ Value

The 1,000 mg serving is well targeted and partly buffered with sodium ascorbate. Chewable delivery and a carbohydrate-heavy base reduce formula cleanliness despite the clear sodium disclosure. The cost per gram is moderate.

View ingredientView products
Sodium · 100 mg OverallScore62
D Active Ingredient Quality & BioavailabilityC- Dose, Safety & Label TransparencyA+ Value

The sodium amount is incidental to a high-dose vitamin C chewable and is too low for exercise hydration. Sodium ascorbate appears in the vitamin forms, but the sodium line does not clearly identify its full source and no supporting electrolytes are included. The low cost suits vitamin C use rather than athletic replenishment.

View ingredientView products
Loading alternative details
82 Performance

Liposomal Vitamin C 1000 mg

SunLipid
Buffered sodium ascorbate, a disclosed phospholipid complex, and MCT create a more purposeful delivery system than a carbohydrate-based chewable. The sodium contribution remains relevant for restricted diets.
86 Performance

Ester-C Plus 1000 mg Vitamin C

Solgar
Buffered calcium ascorbate and 200 mg of citrus bioflavonoids provide a focused 1000 mg vitamin C option without sodium. It does not preserve the original chewable's carbohydrate base and ambiguous source-level amounts, but may better suit someone prioritizing buffering and a sodium-free formula.
89 Performance

Pure Buffered Calcium Ascorbate

NOW
An 890 mg calcium ascorbate serving offers full buffering, clear mineral disclosure, and no sodium contribution. It lacks the original chewable's carbohydrate base and ambiguous source-level amounts, while incomplete inactive-ingredient and use details remain a limitation.
85 Budget

C-500 With Rose Hips

NOW
A lower listed serving cost comes with a practical 500 mg ascorbic acid amount and a small rose-hip addition. It removes the chewable carbohydrate base, but unbuffered ascorbic acid may be less comfortable for a sensitive stomach.
83 Budget

C 500 mg

21st Century
A lower listed serving cost and a simple 500 mg ascorbic acid amount make this an economical basic option. Calcium carbonate adds little buffering, and the simpler tablet does not retain the original chewable's carbohydrate base and ambiguous source-level amounts.
85 Budget

Gold C Vitamin C 1000 mg

California Gold Nutrition
A lower listed serving cost preserves a substantial 1000 mg vitamin C amount in a very simple formula. Plain ascorbic acid removes the original chewable's carbohydrate base and ambiguous source-level amounts and may be less comfortable for sensitive users.
82 Value

Meta-C 1000 mg Tablets

NutriBiotic Immunity
Favorable listed value comes with a more informative or better-buffered formula than the original. The 1000 mg vitamin C complex names calcium, active metabolites, and spirulina, although spirulina adds limited clarity to the core purpose.
86 Value

C

Swanson
Favorable listed value comes with a more informative or better-buffered formula than the original. A 1000 mg calcium ascorbate amount and 200 mg of citrus bioflavonoids provide buffering without the original sodium contribution.
84 Value

Ester-C 24 Hour Immune Support 1000 mg

NatureSmart
Favorable listed value comes with a more informative or better-buffered formula than the original. Buffered calcium ascorbate and a disclosed citrus bioflavonoid complex keep the formula focused and may improve stomach comfort.
Report alternatives

Sources

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

  1. 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 participantsAnti-Inflammatory Support forVitamin C
  2. 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 pooledAnti-Inflammatory Support forVitamin C
  3. 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 pooledAnti-Inflammatory Support forVitamin C
  4. 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 pooledAnti-Inflammatory Support forVitamin C
  5. 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 participantsAnti-Inflammatory Support forVitamin C
  6. 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 pooledGeneral Health forVitamin C
  7. 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 / consensusGeneral Health forVitamin C
  8. 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 participantsGeneral Health forVitamin C
  9. 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 participantsGeneral Health forVitamin C
  10. 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 participantsGeneral 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. Evaluation of the anti-wrinkle effect of an ascorbic acid-loaded dissolving microneedle patch via a double-blind, placebo-controlled clinical study.
    Lee C; Yang H; Kim S; Kim M; Kang H; Kim N; An S; Koh J; Jung H · International journal of cosmetic science · 2017
    Randomized trial23 participantsSkin Health forVitamin C
  17. Comparative Study on the Outcome of Periorbital Wrinkles Treated with Laser-Assisted Delivery of Vitamin C or Vitamin C Plus Growth Factors: A Randomized, Double-blind, Clinical Trial.
    Machado BHB; Frame J; Zhang J; Najlah M · Aesthetic plastic surgery · 2021
    Randomized trial149 participantsSkin Health forVitamin C
  18. Randomized trial of topical ascorbic acid in DMSO versus imiquimod for the treatment of basal cell carcinoma.
    Burke B; Bailie JE · Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2022
    Randomized trial25 participantsSkin Health forVitamin C
  19. Vitamin C improves healing of foot ulcers: a randomised, double-blind, placebo-controlled trial.
    Gunton JE; Girgis CM; Lau T; Vicaretti M; Begg L; Flood V · The British journal of nutrition · 2022
    Randomized trial16 participantsSkin Health forVitamin C
  20. Dietary nutrient intakes and skin-aging appearance among middle-aged American women.
    Cosgrove MC; Franco OH; Granger SP; Murray PG; Mayes AE · The American journal of clinical nutrition · 2007
    Cross-sectional study4,025 participantsSkin Health forVitamin C
  21. 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 participantsVision Support forVitamin C
  22. 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 studyVision Support forVitamin C
  23. Nutritional modulation of cataract.
    Weikel KA; Garber C; Baburins A; Taylor A · Nutrition reviews · 2014
    Narrative reviewVision Support forVitamin C
  24. 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 participantsVision Support forVitamin C
  25. 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 participantsVision Support forVitamin C