2 What are nutrients?Nutrients are organic and inorganic substances found in food that are required by the body in order to perform functions including:Energy production,Growth, repair and replacement of tissuesRegulation of body processes.
3 The essential nutrients Protein is required for growth and replacement of cells.Carbohydrates and lipids are needed for energy release,Vitamins and minerals are required to allow everyday body functions to occur.A daily intake of water is necessary for all these functions to operate effectively.
4 MacronutrientsMolecules that are large in size and are nutrients required by the body in larger quantities. These include:CarbohydratesProteinsLipids (fats)Water
5 Carbohydrates Nutrient functions – Provide the body with energy Different types –Simple carbohydrates, complex carbohydrates and fibreAppropriate food sources –Fruits, veg, bread, rice, pasta
6 Proteins Nutrient functions – Growth, repair and maintenance of tissue Regulates specific functions of the bodyDifferent types –Amino acids, complete proteins, incomplete proteinsAppropriate food sources –Meat, eggs, milk, poultry
7 Lipids (fats) Nutrient Function- Source of energy Protect organs Helps to regulate body temperatureHelps to absorb and move nutrients around the bodyHormone productionDifferent types –Saturated fats, polyunsaturated fats monounsaturated fats and trans fatsAppropriate food sources-Olive oil, avocado, nuts, butter, fish
8 Water Function- Aids digestion Carries nutrients and oxygen to cells Helps eliminate waste through faeces and urineRegulates temperatureLubricates jointsSources-WaterJuiceLots of fruit and veg
9 MicronutrientsAre smaller in size and are only required by the body in small quantities. Examples include vitamins and minerals such as calcium, iron, vitamin c and phosphorus.
10 The importance of digestion Digestion is important because it converts foods into their simplest forms, specifically glucose (from carbohydrate), amino acids (from protein) or fatty acids (from fats, also known as lipids). The broken down nutrients are then absorbed into the bloodstream and carried to each cell in the body.