Introduction to Nutrition This slide presentation is the non- illustrated version and is suitable for those with GCSE Science/Biology and above Dr Alan Stewart MB BS MRCP www.stewartnutrition.co.uk Introduction to Nutrition: what you will learn Nutrition - one of the Functions of Life
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This slide presentation is the non- illustrated version and is suitable for those with GCSE Science/Biology and above
Dr Alan Stewart MB BS MRCP
Written by Dr Alan Stewart
Adequate nutrition plays a central role in all of these characteristic functions
Lack of one or more of the essential nutrients leads to a loss of one or more of these life functions
If deficiency is uncorrected then it can lead ultimately to death of the organism
Nutritional deficiencies are often diagnosed due to characteristic disturbance in these life functionsWhat is the Missing Life Function?Welcome Mrs NERGD!
Each life function and organ have different nutrient requirements
There are two types of nutrients essential to life:
Macronutrient Energy Provision in average adult diet
Life Functions Key Essential Nutrients
These can be classified relating to the supply of macro and micronutrients:
The prevalence of these problems in the British and UK populations
have been assessed in a series of national surveys called The National
Diet and Nutrition Surveys and others conducted by the Food
Standards Agency and related organisations
Supplemental Milk and GrowthIncrease in Height in Inches per Boy in One Year Mann H C Corry (1926) Sp. Rep Ser Med Res Coun. London No. 105.
1. Inadequate Intake Loss of appetite Poor quality diet
2. Reduced Absorption Diet: tea inhibits iron absorption Diseases causing malabsorption
3. Increased Losses Heavy periods – iron Sweating – sodium loss Diarrhoea – sodium, potassium
4. Increased Need Growth and pregnancy
5. Altered Metabolism Disease: liver and kidney Drugs, alcohol, genetic variation
Modern Nutrition in Health and Disease. Ed. Shils et al. Lippincott Williams and Wilkins. 1999
- This American book in its ninth edition is the only serious reference work £120.00
Dietary Reference Values TSO London 1991 - This old small reference volume is still a good source of information £20.00
Thank you for your attention
The full illustrated version of this presentation is presented in person by Dr Stewart to school, college and university students.
Please contact Dr Alan Stewart MB BS MRCP
For additional lectures see related presentations on: Nutritional AssessmentNational Diet and Nutrition SurveysHow Safe are Nutritional Supplements? at www.stewartnutrition.co.uk