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Source Naturals Niacin Vitamin B-3 100mg, 250 Tablets

4.3 out of 5 stars 106 customer reviews
About the product
  • Plays an essential role in the activities of various enzymes
  • Involved in the metabolism of carbohydrates and fats
  • Involved in nervous and digestive system functioning
  • Involved in the manufacturing of sex hormones, and the maintenance of healthy skin
  • 1 tablet daily, or as recommended by your health care professional. Please see NOTE before using

Frequently bought together

  • Source Naturals Niacin Vitamin B-3 100mg, 250 Tablets
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Total price: $16.97
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Product description

Dietary supplement. Niacin plays an essential role in the activities of various enzymes involved in the metabolism of carbohydrates and fats, the functioning of the nervous and digestive systems, the manufacturing of sex hormones.


Product details

  • Product Dimensions: 2 x 2 x 3.6 inches ; 2.7 ounces
  • Shipping Weight: 3.2 ounces (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B001B4OYYC
  • UPC: 021078005025
  • Item model number: SN0502
  • Average Customer Review: 4.3 out of 5 stars 106 customer reviews
  • Amazon Best Sellers Rank: #24,623 in Health & Household (See Top 100 in Health & Household)
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Important information

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Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. Please see our full disclaimer below.

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Customer Rating 4 out of 5 stars (106) 4 out of 5 stars (101) 3 out of 5 stars (13) 4 out of 5 stars (205) 4 out of 5 stars (448) 4 out of 5 stars (119)
Price $10.22 $7.50 $6.99 $10.74 $23.71 $4.67
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By American Sports Nutrition Vitamins And More GNC Amazon.com PHARMCO Amazon.com
Directions 1 tablet daily. As a dietary supllement for adults, take one (1) vegetable capsule daily, preferably with a meal or as directed by a healthcare practitioner. Take one tablet with food, one to two times daily or as directed by your physician. Store in a cool dry place. Suggested Usage: As a dietary supplement, take 1 capsule daily as needed, with a meal; or take as directed byyour healthcare practitioner. Consider taking these other NOW products: Beta-Sitosterol Plant Sterols and Sytrinol.
Safety Warning If you are pregnant, may become pregnantor breast feeding, or have diabetes, liver dysfunction, or ulcers, consult your health care professional before using this product. Niacin maycause temporary flushing, tingling, skin reddening and sensations of heat, especially if taken on an empty stomach. This is a natural and harmless reaction. NOTICE: Use of this product may cause a temporary skin flushing (hot feeling and skin redness), burning, itching, or rash caused by an increase in blood flow near the skin. Sensitive individuals may experience an unexpected drop of blood pressure or dizziness. Do not take on an empty stomach. Do not take more than the recommended dose unless prescribed by your doctor. Temporary flushing, itching, or warming of the skin may occur upon initial use. If you are under medical supervision, have liver dysfunction, gout, or are pregnant or nursing, consult your physician before taking this product. If you are currently taking statins or other medications, have gout or liver dysfunction, or are otherwise under medical supervision, consult your physician before starting niacin supplementation. Caution: For adults only. Do not exceed recommended dose. Donot take on an empty stomach. This product may cause a temporary flush, itching or tingling red rash on the skin. This reaction is normal and harmless. If you experience any prolonged discomfort, discontinue use. Consult physician if pregnant/nursing, taking medication, or have a medical condition.
Size 250 100 Tablets 100 servings 120 Tablets 100

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Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.