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Nutrient density identifies the amount of beneficial nutrients in a food product in proportion to e.g. energy content, weight or amount of perceived detrimental nutrients. Terms such as nutrient rich and micronutrient dense refer to similar properties.
The differing energy density of foods (fat, alcohols, carbohydrates and proteins) lies mainly in their varying proportions of carbon, hydrogen, and oxygen atoms. Carbohydrates that are not easily absorbed, such as fibre, or lactose in lactose-intolerant individuals , contribute less food energy.
[2] Foods composed mostly of empty calories have low nutrient density, meaning few other nutrients relative to their energy content. [3] Empty calories are more difficult to fit into a diet that is both balanced and within TDEE, and so readily create an unhealthy diet. [4]
Organisms are able to detect nutrients through taste or other forms of nutrient sensing, allowing them to regulate nutrient intake. [16] Optimal foraging theory is a model that explains foraging behavior as a cost–benefit analysis in which an animal must maximize the gain of nutrients while minimizing the amount of time and energy spent foraging.
Developed by Adam Drewnowski of the University of Washington, the Naturally Nutrient Rich system is based on mean-percentage Daily Values for 14 nutrients in food with 2,000 calories. It proposes to assign nutrient-density values to foods within and across food groups. The score allows consumers to identify and select nutrient-dense foods ...
A nutrient is a substance used by an organism to survive, grow and reproduce. The requirement for dietary nutrient intake applies to animals, plants, fungi and protists. Nutrients can be incorporated into cells for metabolic purposes or excreted by cells to create non-cellular structures such as hair, scales, feathers, or exoskeletons.
Food composition datasets (FCDBs) or food composition tables are resources that provide detailed food composition data (FCD) on the nutritionally important components of foods. FCDBs provide values for energy and nutrients including protein, carbohydrates, fat, vitamins and minerals and for other important food components such as fibre.
A substance in the feed, such as a nutrient or toxin, can be referred to on a dry matter basis (abbreviated DMB) to show its level in the feed (e.g., ppm). Considering nutrient levels in different feeds on a dry matter basis (rather than an as-is basis) makes a comparison easier because feeds contain different percentages of water.