Food and Hunger
TOPIC
FOOD AND HUNGER
DISCUSSION
Food Nutrients
The most pressing factor now limiting the capacity of the earth to support life is the supply of food. Man’s need for food and his current nutritional requirements are all important for his survival.
Nutrition is defined as the science of food and its relationship to health.
Some of these nutrients are considered to be essential while others are considered to be non-essential.
Essential and Non-essential Food Nutrients
Essential nutrients are nutrients that cannot be synthesized by the human body and therefore must be derived from food sources. Essential nutrients include vitamins, minerals, amino acids, fatty acids and some carbohydrates as a source of energy.
Non-essential nutrients are nutrients which the body has the ability to synthesis from other compounds, as well as, from food sources. Nutrients are generally divided into 2 categories, macronutrients, and micronutrients.
People are heterotrophs. A heterotroph is a creature that must ingest biomass to obtain its energy and nutrition. All heterotrophs have an absolute dependence on the biological products of autotrophs for their sustenance—they have no other source of nourishment.
1. Macronutrients are fats, carbohydrates and proteins. All three can serve as source of the energy that we need to survive. These nutrients are generally needed in large quantities. Organic.
2. Micronutrients are the substances that an organism must have in its diet in small quantities because it cannot make them for itself or because it cannot make them as fast as it needs them. The nutrients can be divided into vitamins which organic compounds, and minerals which are inorganic.
[pic]
Malnutrition and Diet
About 20,000 people die of starvation everyday, and at least 10 million children in the world are so malnourished (poorly fed) that their lives are in danger.
1. Starvation means death from
FOOD AND HUNGER
DISCUSSION
Food Nutrients
The most pressing factor now limiting the capacity of the earth to support life is the supply of food. Man’s need for food and his current nutritional requirements are all important for his survival.
Nutrition is defined as the science of food and its relationship to health.
Some of these nutrients are considered to be essential while others are considered to be non-essential.
Essential and Non-essential Food Nutrients
Essential nutrients are nutrients that cannot be synthesized by the human body and therefore must be derived from food sources. Essential nutrients include vitamins, minerals, amino acids, fatty acids and some carbohydrates as a source of energy.
Non-essential nutrients are nutrients which the body has the ability to synthesis from other compounds, as well as, from food sources. Nutrients are generally divided into 2 categories, macronutrients, and micronutrients.
People are heterotrophs. A heterotroph is a creature that must ingest biomass to obtain its energy and nutrition. All heterotrophs have an absolute dependence on the biological products of autotrophs for their sustenance—they have no other source of nourishment.
1. Macronutrients are fats, carbohydrates and proteins. All three can serve as source of the energy that we need to survive. These nutrients are generally needed in large quantities. Organic.
2. Micronutrients are the substances that an organism must have in its diet in small quantities because it cannot make them for itself or because it cannot make them as fast as it needs them. The nutrients can be divided into vitamins which organic compounds, and minerals which are inorganic.
[pic]
Malnutrition and Diet
About 20,000 people die of starvation everyday, and at least 10 million children in the world are so malnourished (poorly fed) that their lives are in danger.
1. Starvation means death from