niacin

noun

ni·a·cin | \ ˈnī-ə-sən

Definition of niacin

: an acid C₆H₅NO₂ of the vitamin B complex found widely in animals and plants and used especially against pellagra also : nicotinamide

— called also nicotinic acid

Examples of niacin in a Sentence

Recent Examples on the Web Getting plenty of vitamin C and niacin is particularly beneficial for the skin and may lead to a more even skin tone. — Lauren Corona, chicagotribune.com, "How to even skin tone," 2 Apr. 2021 Capsimax powder: This proprietary blend combines capsicum, caffeine, piperine, and niacin. — Norcal Marketing, Chron, "Best Fat Burners: Top 5 Thermogenic Supplements of 2021," 4 Feb. 2021 Generally, the categories of ingredients are the same, but neck products can have ingredients with a higher percentage of fat-soluble vitamins, like vitamin E, and of tightening ingredients, like niacin, antioxidants, and ceramidase. — Tatjana Freund, Marie Claire, "These Neck and Décolletage Products Are Worth It," 7 Oct. 2020 For necks and chests that need help with texture and firmness, niacin and squalene improve collagen production and nourish–supple, soothed skin to come. — Tatjana Freund, Marie Claire, "These Neck and Décolletage Products Are Worth It," 7 Oct. 2020 This water-soluble derivative of niacin or vitamin B3 (an essential vitamin not produced by the body) is lauded its anti-inflammatory, soothing, brightening, and skin tone-evening benefits. — Jessica Teich, Good Housekeeping, "The Skincare Dictionary: Every Ingredient Explained," 2 Oct. 2020 In fact, high doses of some vitamins and minerals — particularly vitamin A, vitamin D, niacin, folic acid, calcium and iron — can build up to toxic levels and have adverse side effects. — Lisa Drayer, CNN, "Should you take a dietary supplement to prevent disease?," 24 June 2020 The nutty spread also offers vitamins and minerals including the B vitamin niacin, iron, potassium and vitamin E. The healthiest peanut butter is made from just peanuts, while added salt, sugars and oils change its nutritional profile. — Lisa Drayer, CNN, "Is peanut butter healthy?," 8 Mar. 2018 The nutty spread also offers vitamins and minerals including the B vitamin niacin, iron, potassium and vitamin E. The healthiest peanut butter is made from just peanuts, while added salt, sugars and oils change its nutritional profile. — Lisa Drayer, CNN, "Is peanut butter healthy?," 8 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'niacin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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Last Updated

6 Apr 2021

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“Niacin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/niacin. Accessed 14 Apr. 2021.

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More Definitions for niacin

niacin

noun

English Language Learners Definition of niacin

technical : a type of natural substance (called a vitamin) that is found in certain foods and that helps your body to be healthy

See the full definition for niacin in the English Language Learners Dictionary

niacin

noun

ni·a·cin | \ ˈnī-ə-sən

Medical Definition of niacin

: a crystalline acid C₆H₅NO₂ that is a member of the vitamin B complex occurring usually in the form of a complex of niacinamide in various animal and plant parts (as blood, liver, yeast, bran, and legumes) and is used especially to lower LDL and triglyceride levels in the blood and to treat pellagra

— called also nicotinic acid