In: Anatomy and Physiology
State the important distinction between the terms 'serving size' and 'portion'. why do you think that portion sizes of many foods have generally gone up for many people? What might be at least one reason (that might even sound fairly logical) that foods with higher energy densities, and sometimes correspondingly lower nutrient densities, are eaten with greater frequency in many people's diets? .
. If the curve for sufficiency of intake of a given nutrient were narrower (tighter) and the distance between the UL and both the RDA and EAR thus less, how would this impact an individual's approach to attaining an adequate, but not excess, amount of such nutrient?
Answer :)
Portion size does not look for standards. It is varying person to person. While serving size is a standard set for a particular food. Generally, people do not feel a filled stomach after having a definite number of serving sizes. Therefore, they chose a portion size, which is totally under control by everyone.
High-energy foods are generally made by using a large number of fats, oils, and carbohydrates. For example, a person may eat 10 packets of chips because of its taste. Therefore, the taste is the biggest reason why people eat high-energy food than nutrient-rich foods.
If the curve makes UL to closer the RDA (Recommended Dietary Allowance) and the EAR (Estimated Average Requirement) both, the person will able to take high nutrient food in less amount. It is because of the decreased level of intake due to decreased Tolerable Upper Intake Level (UL). More UL level occurs when a person intakes more amount of food.