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Stress B with Zinc

product on market Tablet or Pill 21st Century Safety: 94/100
94/100

This product looks safe

  • Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
  • Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)
  • 77% of ingredients have research evidence
D Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This formula contains B vitamins and antioxidants which have moderate evidence for supporting energy metabolism and cellular protection. Research indicates that thiamine, riboflavin, and niacin contribute to normal neurological function. The overall evidence coverage for this specific combination is limited.

AI-generated summary based on research evidence. Not medical advice.

Alerts

Safety Alerts

Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)

Folate: 667mg is 667.0× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

Label for Stress B with Zinc
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
66
Servings
Multi-Vitamin and Mineral (MVM)
Product Type
77%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
500 mg (556% DV)
13.5 mg (90% DV)
Within RDA (0.9× RDA) 179 studies (A:3, B:90)
10 mg (833% DV)
8.3× RDA — above typical dose 76 studies (A:0, B:33)
10 mg (769% DV)
7.7× RDA — above typical dose 13 studies (A:0, B:1)
100 mg (625% DV)
Exceeds UL by 2.9× (UL: 35 mg) 196 studies (A:5, B:63)
5 mg (294% DV)
3.8× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
667 mcg DFE (167% DV)
Exceeds UL by 667.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
12 mcg (500% DV)
5.0× RDA — above typical dose 139 studies (A:1, B:44)
45 mcg (150% DV)
1.5× RDA — within safe limits 27 studies (A:0, B:11)
20 mg (400% DV)
4.0× RDA — above typical dose 2 studies — no high-quality reviews
Calcium
70 mg (5% DV)
23.9 mg (217% DV)
2.2× RDA — within safe limits 263 studies (A:6, B:134)
3 mg (333% DV)
3.3× RDA — above typical dose (UL: 10 mg) 37 studies (A:0, B:11)

Other Ingredients

Starch Cellulose Hydroxypropyl Methylcellulose Contains Less Than 2% of
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: As a vitamin supplement, adults take one (1) tablet daily with any meal or as directed by a healthcare provider. Do not exceed recommended dosage.

Warnings & Precautions

Do not exceed recommended dosage.

Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.

Stop use and contact a physician if adverse reactions occur.

Keep out of reach of children.

Do not use if product appears to be tampered with or seal is broken.

Formulation Notes

No added yeast or preservatives.

Energy & immune support

Gluten free

Additional Information

Individual results may vary.

Store at room temperature.

Periods of stress can be taxing on the body. Combined with a healthy diet and plenty of rest, 21st Century Stress B helps provide the extra nutritional support your body may need.

Guaranteed quality Laboratory tested

Metadata

Product Details

UPC / SKU7 40985 22331 4
DSLD Entry Date2022-01-22
Product TypeMulti-Vitamin and Mineral (MVM)
FormTablet or Pill
Brand21st Century
DSLD ID258595
Data Updated2026-04-11
Research

Research Evidence

397
Research Sources
55
Avg Quality
200
Meta Analysis
68
Rct
58
Systematic Review
53
Clinical Trial
9
Cochrane Review
2
Narrative Review
2
Regulatory Source
1
Observational
1
Other
1
Openfda Safety
A Zinc supplementation for improving pregnancy and infant outcome
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
A Zinc supplementation for preventing mortality, morbidity, and growth failure in children aged 6 months to 12 years
Narrative Review The Cochrane database of systematic reviews 2023 PubMed DOI
A Oral zinc for treating diarrhoea in children
Meta Analysis The Cochrane database of systematic reviews 2016 PubMed DOI
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Zinc for the prevention or treatment of acute viral respiratory tract infections in adults: a rapid systematic review and meta-analysis of randomised controlled trials
Meta Analysis BMJ open 2021 PubMed DOI
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2010 PubMed DOI
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2012 PubMed DOI
A Compression bandages or stockings versus no compression for treating venous leg ulcers
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
A Zinc supplementation for mental and motor development in children
Meta Analysis The Cochrane database of systematic reviews 2012 PubMed DOI
A Zinc for the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
View all evidence for Zinc →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.