Nature Made Stress B-Complex Supplement With Vitamin C And Iron supplement bottle
Nature Made

Stress B-Complex Supplement With Vitamin C And Iron

What We Researched
11 active ingredients analyzed · 20 inactive ingredients decoded · 4 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
91
Product Score Excellent
86
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C 500 mg 833%
Vitamin E 30 IU 100%
Thiamine 10 mg 667%
Riboflavin 10 mg 588%
Niacin 100 mg 500%
Vitamin B6 5 mg 250%
Folic Acid 400 mcg 100%
Vitamin B12 12 mcg 200%
Biotin 45 mcg 15%
Pantothenic Acid 20 mg 200%
Iron 18 mg 100%
Bioavailability Very Good

Absorption Rating

  • Vitamin C Fair
  • Vitamin E Good
  • Thiamine Good
  • Riboflavin Good
  • Niacin Good
  • Vitamin B6 Fair
  • Folic Acid Fair
  • Vitamin B12 Fair
  • Biotin Good
  • Pantothenic Acid Good
  • Iron Fair
Other Ingredients Excellent

Fillers & Additives

  • Niacinamide Ascorbate
  • Ascorbic Acid
  • Cellulose Gel
  • Calcium Carbonate
  • Ferrous Fumarate Low
  • DL-Alpha-Tocopheryl Acetate
  • Calcium D-Pantothenate
  • Modified Food Starch
  • Corn Starch
  • Croscarmellose Sodium
  • Thiamine Mononitrate
  • Riboflavin
  • Dibasic Calcium Phosphate
  • Magnesium Stearate
  • Hydroxypropyl Methylcellulose
  • Pyridoxine Hydrochloride
  • Polyethylene Glycol Low
  • Folic Acid
  • Biotin
  • Cyanocobalamin
Efficacy Excellent

Dosage Analysis

  • Vitamin C 500 mg Effective
  • Vitamin E 30 IU Effective
  • Thiamine 10 mg Effective
  • Riboflavin 10 mg Effective
  • Niacin 100 mg High
  • Vitamin B6 5 mg Effective
  • Folic Acid 400 mcg Effective
  • Vitamin B12 12 mcg Effective
  • Biotin 45 mcg Effective
  • Pantothenic Acid 20 mg Effective
  • Iron 18 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C 500 mg 833%
Vitamin E 30 IU 100%
Thiamine 10 mg 667%
Riboflavin 10 mg 588%
Niacin 100 mg 500%
Vitamin B6 5 mg 250%
Folic Acid 400 mcg 100%
Vitamin B12 12 mcg 200%
Biotin 45 mcg 15%
Pantothenic Acid 20 mg 200%
Iron 18 mg 100%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Niacinamide Ascorbate Unknown
Ascorbic Acid Safe

Prevents oxidation and provides vitamin C.

Cellulose Gel Generally_safe

It is used as a thickening agent to improve the texture of supplements.

Calcium Carbonate Safe

Acts as a filler and provides supplemental calcium.

Ferrous Fumarate Caution

It is used to supplement iron intake.

DL-Alpha-Tocopheryl Acetate Generally_safe

It is used as a source of vitamin E and as an antioxidant.

Calcium D-Pantothenate Unknown
Modified Food Starch Generally_safe

It is used as a filler, binder, or thickener in supplements.

Corn Starch Generally_safe

It is used as a filler, binder, or thickener.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Thiamine Mononitrate Safe

It is used as a source of vitamin B1.

Riboflavin Safe

It is used as a source of vitamin B2.

Dibasic Calcium Phosphate Generally_safe

It is used as a filler and to improve tablet hardness.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Hydroxypropyl Methylcellulose Safe

It is used as a coating for tablets and capsules.

Pyridoxine Hydrochloride Safe

It is used as a source of vitamin B6.

Polyethylene Glycol Caution

It is used as a binder, coating agent, or to improve solubility.

Folic Acid Safe

It is used as a source of folate.

Biotin Safe

It is used for its potential benefits related to hair, skin, and nail health.

Cyanocobalamin Safe

It is used as a source of vitamin B12.

Price Comparison

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Nature Made

Founded 1971 · West Hills, California, USA · 161 products · naturemade.com

Certifications

4 certifications
Consumerlab Verified Source
Labdoor Verified Source
Usp Verified Verified Source
Fda Gmp Inspections Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Claimed Source
In House Testing — Verified Source

Violation History

2 incidents
Lawsuit Presence of toxic plastic chemicals in prenatal multivitamins.2025Source
Recall Specific lots of Nature Made Adult Gummies Multi, Multi + Omega-3, Multi for Her plus Omega-3s, and Super B Complex w/C & Folic Acid2016-06-15Source
Related Supplements
Frequently Asked Questions
Is Nature Made Stress B-Complex Supplement With Vitamin C And Iron a good supplement?

Nature Made Stress B-Complex Supplement With Vitamin C And Iron received a product quality score of 91/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 11 active ingredients Of the 20 inactive ingredients, 11 are rated safe and 2 are flagged for review. The manufacturer, Nature Made, holds a brand trust score of 86/100 with 4 verified certifications including Consumerlab, Labdoor, Usp Verified, Fda Gmp Inspections.

What are the ingredients in Nature Made Stress B-Complex Supplement With Vitamin C And Iron?

Nature Made Stress B-Complex Supplement With Vitamin C And Iron contains 11 active ingredients: Vitamin C (500 mg), Vitamin E (30 IU), Thiamine (10 mg), Riboflavin (10 mg), Niacin (100 mg), Vitamin B6 (5 mg), and 5 more. Notable high-dose ingredients include Vitamin C at 833% DV, Thiamine at 667% DV, Riboflavin at 588% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Nature Made Stress B-Complex Supplement With Vitamin C And Iron safe to take?

Nature Made Stress B-Complex Supplement With Vitamin C And Iron has been analyzed for ingredient safety across all its components. Of 20 inactive ingredients, 11 are rated safe. 2 ingredients are flagged for review: Ferrous Fumarate, Polyethylene Glycol. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Nature Made a trustworthy supplement brand?

Nature Made receives a brand trust score of 86/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1971 and headquartered in West Hills, California, USA, the company offers 161 products in their lineup. They hold 4 verified certifications including Consumerlab, Labdoor, Usp Verified, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Nature Made has 2 historical regulatory incidents on record, which are factored into the trust score.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.