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Understanding Food

            
             Understanding Food- 1000 Tonnes A Lifetime.
             It can either be in a solid or a liquid substance which, when consumed by the body it provides the essential resources for the body to grow, repair damaged parts and to function normally. Food is also a very important when it comes to providing the body with energy. The food we eat gives us the nutrients and eventually the energy required for all body parts to function correctly and efficiently. .
             There are six main groups of nutrients: vital.
             - Proteins: Proteins are complex molecules made up of smaller items called amino acids. These acids are important to our bodies because they help in the construction of muscle tissue, enzymes, haemoglobin and many parts of the cell such as DNA.
             - Carbohydrates: Carbohydrates are made up the elements carbon, hydrogen and oxygen and they provide our bodies with a readily available source of energy. Food appearance and flavour is increased by these compounds.
             - Lipids: Lipids include all fats and oils taken in by the persons diet. Fats are a fundamental part of the diet and add both flavour and texture to foods eaten.
             - Vitamins: Vitamins are organic compounds required for cellular processes. There are 13 essential vitamins to the diet of animals including humans.
             - Minerals: Minerals are inorganic compounds present in the food we eat and incorporated into many structures of the body such as bones teeth and blood.
             - Water: Humans can survive for several weeks without food but if you were to go without water death can result in as little as 8 hours. As our bodies are 60 percent water by weight it is essential that we keep that balanced.
             It is evident that our understanding of nutrition has changed over time because along with all the scientific discoveries comes the opportunities for nutritionists to expand their knowledge. Nutritionists have introduced us to such guidelines as Recommended Daily Intakes including all the essential proteins where as prior to the 20th Century people were no watching what they eat or not eating enough.


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