As molecular biology, genetics and biochemistry advance, nutrition is focused on the steps of biochemical sequences by which substances inside our bodies and other living organisms are changed from one form to another.
The processes are metabolic and metabolism pathways. Also, nutrition focuses on how conditions, diseases and problems can be lessened or prevented with a healthy diet.
Additionally, nutrition involves determining how particular diseases, problems or conditions can be caused by various dietary factors such as food allergies, poor diet (malnutrition), metabolic diseases and others.
Why is nutrition important?
Consuming a balanced diet is important for wellbeing and good health. It can help us to get good health throughout life.
Food offers our bodies with the protein, energy, vitamins, minerals and essential fats to grow, live and function properly.
We require a wide array of various foods to offer the right amount of nutrients for good health.
Enjoying a healthy diet may also be one of the greatest cultural pleasures of life. The dietary and foods patterns that enhance good nutrition are recommended by doctors all over the world.
An unhealthy diet/nutrition increases the risk of numerous diet-related diseases.
Nutrition risk factors
The most causes of illness, disability and death in which nutrition and diet play a vital role include stroke, coronary heart disease, atherosclerosis, obesity, hypertension, some forms of cancer, osteoporosis, type 2 diabetes, gall bladder disease, dental caries, nutritional anemia and dementia.
In the United States, unhealthy eating habits have led to an obesity epidemic.
About one-third of United States adults (33.8%) have obese problems and about 17% or 12.5 million of children and also adolescents aged between 2-19 years are obese.
The human body requires 7 major types of nutrients.
A nutrient is an ingredient in food and source of nourishment, e.g. carbohydrate, protein, vitamin, fat, fiber, water and mineral water.
Macronutrients are the nutrients we require in large quantities. On the other hand, micronutrients are the nutrients we require in small quantities.
Energy macronutrients offer energy, measured in either Joules or Kilocalories (Kcal). 1 Kcal=4185.8 joules.
These include carbohydrates, which consist of carbon, oxygen and hydrogen atoms.
Carbohydrates consist of monosaccharides, disaccharides and polysaccharides.
Proteins contain nitrogen, carbon, oxygen and hydrogen. Fats are either polymers (triglycerides) or monomers.
Triglycerides have 3 fatty acid molecules and an alcohol glycerol molecule.
Finally, even people who have a healthy weight, poor diets are associated with most health risks that cause illness or death.
The link between healthy weight and good nutrition minimizes the risk of chronic disease and improves overall health.
If you want to eat healthily, choose healthy foods and healthy cooking appliances. You take small steps that will lead to overall great results.