Nutrition and the Skin

Authored by: Laura L. Bernet , Christina N. Kim , Jenny Kim

Handbook of Nutrition and Food

Print publication date:  July  2013
Online publication date:  April  2016

Print ISBN: 9781466505711
eBook ISBN: 9781466505728
Adobe ISBN:

10.1201/b15294-76

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Abstract

Dietary supplements compose a large and lucrative market. One analysis estimated sales of nutritional supplements to exceed $23 billion in 2009. 1 Labels purport an array of benefits, ranging from improved heart health to increased metabolism, to enhanced immunity. Cosmeceuticals, or over-the-counter products proposed to benefit skin appearance, texture, or health, make up a healthy portion of this market, with one 2006 market analysis anticipating sales to exceed $6.4 billion per year by 2010. 2 The question of whether topical nutrients have effects on the skin when taken orally is a good one. Certain vitamin deficiencies and excesses have well-documented effects on skin health. And many nutrients show skin bioavailability when ingested orally and thus warrant study for their cutaneous effects. In this chapter, we aim to review the current literature of certain dietary factors on skin health. We focus mainly on the in vivo human analyses in an attempt to focus the review. Indeed, this work may be limited by studies not included.

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