121slide11 - 2006 Thomson- Vitamins and Metabolism Vitamins...

Info iconThis preview shows pages 1–26. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 2006 Thomson- Vitamins and Metabolism Vitamins and minerals Are required for proper metabolism Do not directly provide energy Are necessary for obtaining energy from the macronutrients Often function as coenzymes 2006 Thomson- Vitamins and Metabolism Figure 10.2 The Water-Soluble Vitamins Vitamin C and the B Vitamins Cooking and washing with water leaches them out of food Easily absorbed Excess easily excreted in urine The Water-Soluble Vitamins Advice for meeting needs Choose foods that are rich in water-soluble vitamins to achieve the recommended intakes over 3 days time The Water-Soluble Vitamins Toxicity Never from food Can occur from the large doses concentrated in some vitamin supplements Expensive urine -$$$$$ 2006 Thomson- The Water-Soluble Vitamins Deficiency After about 6 weeks of a deficient diet The B Vitamins B vitamins act as part of coenzymes A small molecule that combines with, and activates, an enzyme 2006 Thomson- Vitamins and Metabolism Figure 10.1 The B Vitamins B Vitamins Role in Metabolism Metabolism of carbohydrates, lipids, and amino acids 2006 Thomson- Thiamin (B1) Functions Thiamin Deficiency Beriberi Loss of sensation in the hands and feet, muscular weakness, advancing paralysis, abnormal heart action Death via heart failure Thiamin Deficiency Wernicke-Korsakoff Syndrome 2006 Thomson- Thiamin RDA: Men: Women: Toxicity? Thiamin Sources 2006 Thomson- Thiamin Riboflavin (B2) Function Coenzyme in carbohydrate energy metabolism Riboflavin Deficiency Smooth tongue, cracking at corners of mouth, fatigue At risk: Children who lack milk products and meat 2006 Thomson- Riboflavin RDA: Men: Women: Toxicity? Riboflavin Sources 2006 Thomson- Riboflavin Niacin(B3) Function Coenzyme in many energy metabolism reactions Niacin Deficiency Pellagra Diarrhea Dermatitis Dementia Death Niacin At risk for pellagra: Poorly nourished people Particularly those with alcohol addiction 2006 Thomson- Niacin RDA Men: Women: Niacin...
View Full Document

Page1 / 73

121slide11 - 2006 Thomson- Vitamins and Metabolism Vitamins...

This preview shows document pages 1 - 26. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online