Niacin 100 mg®
Single Vitamin & MineralBrand: 21st Century
Functions
Net Contents
110 Tablet(s)
Serving Size
1 Tablet(s)
Servings Per Container
110
Supplement Form
Tablet or Pill
Bar Code (UPC/SKU)
7 40985 21364 3
Product Version
500088-0919N
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
2 distinct active ingredients are disclosed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
2 ingredients report a %DV; 1 meet or exceed 100% DV.
Label states: Gluten-Free.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Allergen Guide
Free From
- Gluten
Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.
Supplement Facts
Serving Size: 1 Tablet(s) · 1 per day
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
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
Precautions re: All Other
Do not exceed recommended dosage.
Precautions re: Pregnant or Nursing or Prescription Medications
Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.
Precautions re: All Other
Stop use and contact a physician if adverse reactions occur.
Precautions re: Children
Keep out of reach of children.
Precautions re: All Other
Do not use if product appears to be tampered with or seal is broken.
Storage
Storage
Store at room temperature.
Formulation
Formulation re: Does NOT Contain
No added Sugar, Yeast, Preservatives, Artificial Flavors or Colors.
Formulation re: Other
Energy & Circulatory Support
Formulation re: Does NOT Contain
Gluten free
Formula re: Contains
Niacin (vitamin B-3) plays a role in energy metabolism.
FDA Statements
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
FDA Statement of Identity
Vitamin Supplement
Other Label Statements
General Statements: All Other Content
Individual results may vary.
Seals/Symbols
Guaranteed quality Laboratory tested
Manufacturer & Distributor
Manufacturer
21st Century HealthCare, Inc.
2119 S. Wilson St., Tempe, AZ, 85282, USA
Market Reference
21st Century Niacin 100 mg Tablets
iHerb4.7(1200)$4.9921st Century Niacin 100 mg 110 Tablets
GoSupps.com4.7(1200)$19.9921st Century Niacin Tablets 100 mg 110 Count
GoSupps.com4.7(1200)$24.9921st Century B-1 100 mg Tablets
iHerb4.7(378)$5.4921st Century B-100 Complex Prolonged Release Tablets
21st-century-vitamins4.8(2200)$9.4921st Century B-6 100 mg Tablets
Swanson Health Products4.7(1400)$5.4921st Century Niacin 500 mg Prolonged Release Tablets
iHerb4.7(307)$8.9921st Century Men's Health One Daily Multivitamin Multimineral Supplement Tablets
Walmart - Thrifty White Health4.7(8900)$9.29
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
Showing representative supplement & health retailers — search above for stores in your area.
The Vitamin Shoppe
4.6 (163)Vitamin & supplements store
1770 Galleria Blvd, Franklin, TN 37067
Nutrishop Bellevue
5.0 (546)Vitamin & supplements store
7053 Hwy 70 S, Nashville, TN 37221
Nutrition Faktory
4.8 (36)Vitamin & supplements store
790 Jordan Rd #104, Franklin, TN 37067
GNC
3.6 (39)Vitamin & supplements store
782 Old Hickory Blvd, Brentwood, TN 37027
Nutrishop Franklin
5.0 (117)Vitamin & supplements store
2000 Meridian Blvd #108, Franklin, TN 37067
Whole Foods Market
4.4 (2037)Grocery store
1566 W McEwen Dr, Franklin, TN 37067
The Vitamin Shoppe
4.6 (24)Vitamin & supplements store
3175 Lebanon Pike Ste 103, Nashville, TN 37214
GNC
4.5 (22)Vitamin & supplements store
1012B Crossings Blvd, Spring Hill, TN 37174
Research & Studies
Niacin
M Meyer-Ficca, JB Kirkland - Advances in Nutrition, 2016 - academic.oup.com
… These results indicate that a therapeutic increase of NAD concentrations might prevent age-associated health decline and that dietary supplementation with niacin as the major …
2016112 citationsNiacin supplementation and mortality in the US population: analysis of NHANES diet interviews and TriNetX health records
M Ferrell, DC Kaelber, J Shaia - Precision Nutrition, 2025 - journals.lww.com
… for Health Statistics study [ 14 ] (226,767 person-years including 3140 deaths). We refer to this cohort with dietary niacin, supplemental niacin … dietary niacin intake, supplemental niacin …
2025Niacin: The Real Story: Learn about the Wonderful Healing Properties of Niacin
A Hoffer, AW Saul, HD Foster - 2015 - books.google.com
… Therefore, this book concentrates on niacin's clinical benefits in a number of health conditions. … nutritious foods, will not come close to even a 100 mg niacin supplement. We need extra …
201525 citationsNiacin as a component of combination therapy for dyslipidemia
M Miller - Mayo Clinic Proceedings, 2003 - Elsevier
… Despite efforts by the medical and public health communities … had suboptimal LDL-C levels (=100 mg/dL), and 33% had … niacin is available over the counter as a dietary supplement. …
2003114 citationsNiacin Brain Benefits: Boosting Cognitive Function and Mental Health
CNI Memory - neurolaunch.com
… Nicotinamide riboside, a specialized form, shows promise at 250–1,000 mg daily. Consult a healthcare provider before supplementing to avoid niacin toxicity and interactions. …
The B-complex vitamins related to energy metabolism and their role in exercise performance: A narrative review
AC Gonçalves, GV Portari - Science & Sports, 2021 - Elsevier
… riboflavin supplementation did not show positive effects, while there is evidence that high niacin … to elucidate the real effects of thiamine, riboflavin, and niacin in exercise performance. …
202143 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-01-22. DSLD Label ID: 258477. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.
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