food and nutrientl
DESCRIPTION
Food Is that which nourishes the body. Anything eaten or drunk, which can be absorbed by the body to be se as energy source ,building, regulating or protective material. Nutrients is food substance that provides energy which is necessary for growth and repair. Examples of nutrients are vitamins, minerals, carbohydrates, fats, and proteins.TRANSCRIPT
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Food and Nutrient
• Nutrients is food substance that provides energy which is necessary for growth and repair.
• Examples of nutrients are vitamins, minerals, carbohydrates, fats, and proteins.
• Food Is that which nourishes the body. Anything eaten or drunk, which can be absorbed by the body to be se as energy source ,building, regulating or protective material.
Physical
Supply EnergyBuild and maintain body
tissueRegulate the body process
Social function
Food is served almost on all social events like marriages, parties, get-together, official meetings etc., in the form of snacks, breakfasts, banquet, dinner etc.
Food play a powerful and effective role for developing social rapport.
Psychological
Foods satisfy certain emotional needs of human beings and act as a source of security.
Sharing of food is a token of friendship and acceptance .
Specific function of Nutrients
• Carbohydrates • Proteins• Fats• Minerals • Vitamins
• Water from food and water we drink
• Fiber from all plant foods
Carbohydrates A carbohydrate is an organic compound that consists only of carbon, hydrogen, and oxygen.
carbohydrates divides into groups according to the number of individual simple sugar units. Monosaccharide's contain a single unit; disaccharides contain two sugar units; and polysaccharides contain many sugar units.
Classifications of Carbohydrates
Carbohydrates
The primary function of carbohydrates in humans is to provide energy for the body.
In addition to immediately transporting blood sugar into cells, carbs also get stored in your liver as reserves.
whole grains, beans and peas, vegetables and fruits
Sources of Carbohydrate
Functions of carbohydrates
Proteins
Proteins are essential nutrients for the human body.
They are one of the building blocks of body tissue.
Proteins are long chains of amino acids. Amino acids are chemical compounds containing carbon, hydrogen, oxygen and nitrogen.
Structural formula of Protein
Types of Proteins
Simple proteins
Albumins Globulins Glutelins Prolamins Fibrous protein Histonens Pritanubs
Conjugated proteins Nucleoproteins Glycoproteins Hemoglobins Lacithoproteins
Source of Protein
• Protein is essential for growth and the repair of body tissue.
• Protein is essential to the structure of red blood cells, for the proper functioning of antibodies.
Meat, milk, cheese, and egg are complete proteins. Other sources of protein include whole grains, rice, corn, beans, legumes, oatmeal, peas, and peanut butter.
Function of Protein
Lipids Lipids are molecules that contain hydrocarbons and make up the building blocks of the structure and function of living cells.
Lipids have mainly hydrocarbons in their composition (Carbon, Hydrogen and Oxygen)
Sources of fat• In general, the main sources of saturated fat are from animal products: red
meat and whole-milk dairy products.
• plant-based sources of fat, coconut oil and coconut milk, palm kernel oil, cocoa butter, and palm oil.
• The main function of fats in the body is to provide energy.
• Fats can also be stored in body for subsequent use.
• Fats also carry the fats soluble vitamins A, D, E and K into the body.
Function of fat
Minerals
Mineral elements from an important group of nutrients necessary for the growth and upkeep of the body. About five present of our body weight made of mineral elements.
General Functions of Minerals
• Maintenance of acid-base balance• Control water balance • Contraction of muscles
VitaminA vitamin is an organic compound required by an organism as a vital nutrient in limited amounts.
Vitamins are classified as either water-soluble or fat-soluble.
water-soluble
• Vitamin B1• Vitamin B2• Vitamin B3• Vitamin B5• Vitamin B6• Vitamin B7• Vitamin B9• Vitamin B12• Vitamin C
Fat-soluble
• Vitamin A• Vitamin D• Vitamin E• Vitamin K
Function of Vitamin A
Vitamin A
• Vitamin A is needed for new cell growth, healthy skin, hair, and tissues, and vision in dim light.
• Vitamin A is found in dark green and yellow vegetables and yellow fruits, such as broccoli spinach, turnip greens, carrots, squash, sweet potatoes, pumpkin, cantaloupe, and apricots, and in animal sources such as liver, milk, butter, cheese, and whole eggs.
Vitamin A deficiency
• Approximately 250,000 to 500,000 malnourished children in the developing world go blind each year from a deficiency of vitamin A
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