I would imagine protein.
A lack of protein in the diet can lead to decreased production of hemoglobin, which carries oxygen in red blood cells. This can result in decreased oxygen supply to body tissues and lead to symptoms like fatigue, weakness, and shortness of breath.
Unlike carbohydrates and fats, the human body does not store excess protein and instead relies on a continuous supply from the diet to meet its needs. When the body consumes more protein than it can use, the excess is broken down and excreted through urine, preventing protein from being stored in the body for later use.
Our bodies need protein for growth and repair of cells. for example when a sportsman has torn a muscle he would be advised to eat lots of protein. Also protein can be used as an energy supply when other energy resources (carbohydrates/fats) are limited
Carbohydrates Protein Fat Vitamins Minerals water ................................
She always makes sure to include a good source of protein in her post-workout meal.
No
The body does store protein. Muscles are made almost entirely of protein, and when the body has a serious protein shortage, it can obtain protein from its muscles (which shrink accordingly).
All foods that supply fiber have some kind of carbohydrate content, since fiber is technically a carbohydrates (although the body does not actually digest it). For example, meat does not supply fibre because it is solely composed of protein and/or fat.
Your body it built of protein. Muscle, tissues etc. Your body will deteriorate without protein.
Protein is used for growth and repair. If you remove the water from the body, about half of the remaining weight (called the dry weight) is protein. Making new cells, or repairing damaged cells, requires protein. We obtain this protein from the food in our diet. If carbohydrate and food are lacking in the diet (eg during starvation) the protein in the body can be 'burned' to supply energy. See http://www.kidshealth.org/kid/stay_healthy/food/protein.html http://www.cdc.gov/nccdphp/dnpa/nutrition/nutrition_for_everyone/basics/protein.htm http://www.betterhealth.vic.gov.au/bhcv2/bhcarticles.nsf/pages/Protein?OpenDocument
No, your body needs protein.