Food And Nutrition
Everything You Need To Know About Human Nutrition
Minerals | Vitamins | Healthy Food
Human nutrition is the natural process by which dietary substances present in the food are converted into bodily tissues and supply energy for the complete spectrum of physical and mental activities that are essential for human life.
Healthy food habits and nutrition control are essential parts of leading a healthy life. A balanced diet and nutrition-rich food consumption can help a lot in mitigating the risks of many lifestyle diseases.
Eating the right foods and abstaining from unhealthy foods helps our bodies recover quickly from any disease. And therefore, a good understanding of healthy food habits and human nutrition is an essential part of improving and effectively managing our health.
The human body consists of trillions of tiny cells. Human body cells work as the basic building blocks of our body. We eat food which provides the necessary energy and nutrition to the body cells.
The cells also contain the body’s hereditary material in the form of DNA. DNA is a crucial component of the cells that contains the instructions needed for an organism to develop, survive, and reproduce.
Human Nutrition
There are six main human nutritional components of our food. Nutrition in food includes carbohydrates, proteins, fats, vitamins, minerals, and water. Carbohydrates, proteins, and fats provide the energy measured in calories and referred to as macronutrients.
Whereas vitamins, minerals, and water are other essential micronutrients that also play an important role in keeping the body healthy.
Human Nutrition
Learn more about other important topics related to health, body nutritional requirements, nutritious and tasty food, and human nutrition.
Healthy foods are those that our bodies can easily absorb, digest, and provide the necessary nutrition for health. Our bodies need a nutritionally rich, healthy diet to maintain their physical, mental, and overall well-being.
A healthy and balanced diet helps our body manage the energy level required to sustain normal activities. Healthy food includes freshly cooked food, green leafy vegetables, fruits, eggs, whole grains, nuts, seeds, and other protein-rich foods.
There are six main nutritional components of food. Nutrition in food includes carbohydrates, proteins, fats, vitamins, minerals, and water. Carbohydrates, proteins, and fats provide the necessary energy for our body to sustain routine activities and are referred to as macronutrients.
While vitamins, minerals, and water are other essential components of nutrition known as micronutrients, our body also needs micronutrients to regulate some important functions that keep the body healthy.
Human Nutrition
Healthy Lifestyle And Nutrition
A healthy lifestyle includes a healthy and balanced diet that takes care of the nutritional requirements of our body. There are numerous options for selecting healthy foods that are also tasty.
Lifestyle changes in terms of eating healthy and abstinence from unhealthy foods are crucial for our bodies. Find out how to lead a healthy lifestyle.
Calorie Requirements
Energy Consumption By Human Body
The human body needs food and nutrition for crucial body functions and as a source of energy for all types of physical activities. The body works like a machine and converts the food into energy that the body can utilize after digestion.
The energy derived from food is partly utilized for some crucial body functions, and some energy is used for performing physical and other activities.
The human body is naturally programmed to make efficient use of energy. All the excess energy other than that consumed by the body is stored in the body as body fat. The body uses body fat to get energy, especially when other sources of energy, such as food, are not available.
The unit of measurement for energy used by the human body is measured in kilocalories. Food essentially contains carbohydrates, protein, and fat, which get converted into ATP. Adenosine triphosphate (ATP) is the source of energy for use and storage at the cellular level in the human body.
Human Nutrition
Calorie Requirements
Calorie requirements are determined by a variety of factors, including gender, age, lifestyle, job, and others. People who lead sedentary lives with little physical activity require less calories. but the suggested calory need for persons who engage in moderate to vigorous physical exercise is significantly higher.
GENDER | AGE | SEDENTARY | MODERATE | ACTIVE |
Child | 2 - 3 | 1000 | 1000 | 1000 |
Female | 4 - 8 | 1200 | 1400 | 1800 |
Female | 9 - 13 | 1600 | 1600 | 2200 |
Female | 14 - 18 | 1800 | 2000 | 2400 |
Female | 19 - 30 | 2000 | 2000 | 2200 |
Female | 31 - 50 | 1800 | 2000 | 2200 |
Female | 50 Plus | 1600 | 1800 | 2200 |
Male | 4 - 8 | 1400 | 1600 | 2200 |
Male | 9 - 13 | 1800 | 2200 | 2600 |
Male | 14 - 18 | 2200 | 2800 | 3200 |
Male | 19 - 30 | 2400 | 2800 | 3000 |
Male | 31 - 50 | 2200 | 2600 | 3000 |
Male | 50 Plus | 2000 | 2400 | 2800 |
Underutilization of the excess energy derived from food, primarily due to lack of physical activity, is the most common cause of obesity. Excess energy gets stored in the body as fat and, over a period of time, leads to a high body mass index. Having a high BMI may lead to obesity and other illnesses.
Other Useful References
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