Nutrition
A Beginners Guide
ONEWORLD BEGINNERS GUIDES combine an original, inventive, and engaging approach with expert analysis on subjects ranging from art and history to religion and politics, and everything in-between. Innovative and affordable, books in the series are perfect for anyone curious about the way the world works and the big ideas of our time.
aesthetics
africa
american politics
anarchism
animal behaviour
anthropology
anti-capitalism
aquinas
art
artificial intelligence
the bahai faith
the beat generation
the bible
biodiversity
bioterror & biowarfare
the brain
british politics
the Buddha
cancer
censorship
christianity
civil liberties
classical music
climate change
cloning
cold war
conservation
crimes against humanity
criminal psychology
critical thinking
daoism
democracy
descartes
dewey
dyslexia
energy
the enlightenment
engineering
epistemology
european union
evolution
evolutionary psychology
existentialism
fair trade
feminism
forensic science
french literature
french revolution
genetics
global terrorism
hinduism
history of science
homer
humanism
huxley
iran
islamic philosophy
islamic veil
journalism
judaism
lacan
life in the universe
literary theory
machiavelli
mafia & organized crime
magic
marx
medieval philosophy
middle east
modern slavery
NATO
nietzsche
the northern ireland conflict
nutrition
oil
opera
the palestineisraeli conflict
particle physics
paul
philosophy
philosophy of mind
philosophy of religion
philosophy of science
planet earth
postmodernism
psychology
quantum physics
the quran
racism
reductionism
religion
renaissance art
shakespeare
the small arms trade
sufism
the torah
united nations
volcanoes
Nutrition
A Beginners Guide
Dr Sarah Brewer
A Oneworld Book
Published by Oneworld Publications 2013
Copyright Sarah Brewer 2013
The moral right of Sarah Brewer to be identified as the Author of this work has been asserted by her in accordance with the Copyright, Designs and Patents Act 1988
All rights reserved
Copyright under Berne Convention
A CIP record for this title is available
from the British Library
ISBN 978-1-85168-924-8
ISBN (ebook) 978-1-78074-081-2
Typeset by Cenveo, India
Oneworld Publications
10 Bloomsbury Street
London WC1B 3SR
UK
Stay up to date with the latest books, special offers, and exclusive content from Oneworld with our monthly newsletter
Sign up on our website
www.oneworld-publications.com
This book is dedicated to my wonderful family, who provide love and support during all those long hours of research and writing!
Contents
Crown copyright. Department of Health in association with the Welsh Assembly Government, the Scottish Government and the Food Standards Agency in Northern Ireland.
website. Washington, DC.
When it comes to food, do you follow Hippocrates famous axiom: You are what you eat and select the most healthy, nutritious diet possible? Or do you follow the advice of Mark Twain: Eat what you like and let the food fight it out inside?
Each of us has a complex relationship with food that goes beyond obtaining the nutrition required to fuel growth, body maintenance, physical activity and good health. Some live only to eat planning meals and snacks in advance, experimenting with new tastes and craving old favourites. These people are likely to obtain more nutrition than they need and struggle with weight-related health issues. But some eat only to live, juggling their body image and hunger to obtain just enough nutrition to sustain life. Interestingly, the way you obtain nutrition can have a huge impact on your health, and even your life expectancy. For example, prolonged calorie restriction has been shown to extend average lifespan by 50 to 100 per cent in all species studied, including yeast, worms, spiders, flies, fish, mice, rats, dogs and monkeys. In all likelihood, a restricted diet can extend human life, too. In fact, according to a recent review from the Pennington Biomedical Research Center, cutting back on food intake (while maintaining proper nutrition to guard against vitamin and mineral deficiencies) is the only intervention known to slow consistently the rate at which we age and to increase the human lifespan. So whats the catch? Well, cutting back on food intake isnt as easy as it sounds as any calorie-controlled dieter will tell you. And you need to restrict calories to around two-thirds of your normal daily needs in order to prolong your life by twenty to forty years. Yet while a so-called starvation diet may be associated with a longer lifespan, more often than not it is accompanied by protein and micronutrient deficiencies that attract their own health problems.