Verteerbare

Verteerbare is a Dutch adjective meaning capable of being digested; in nutrition and food science it describes the extent to which a nutrient or food substance can be broken down and absorbed by the digestive system. It is commonly used in human nutrition as well as in animal feed evaluation to distinguish foods and ingredients that can be utilized by the body from those that are not fully digested.

Etymology: the term derives from the verb verteer (to digest) with the suffix -baar, forming a word that indicates potential or suitability for digestion.

In practice, verteerbare nutrients are those that the digestive system can break down and absorb. Phrases such as verteerbare koolhydraten refer to carbohydrates that are hydrolyzed in the gastrointestinal tract and absorbed as simple sugars, while verteerbaar eiwit denotes protein that contributes amino acids to the body. Not all nutrients are fully verteerbaar; dietary fiber, for example, is only partly digestible in humans and can influence gut health and transit.

Measurement and methods: digestibility is often expressed as apparent digestibility (intake minus fecal excretion divided by intake) or true digestibility (adjusted for endogenous losses). In humans and animals, in vivo methods and in vitro simulations estimate the verteerbaarheid of ingredients such as cereals, legumes, or feed formulations. Processing, cooking, particle size, and fat content can increase or decrease verteerbaarheid.

Examples: cooked starch is generally highly verteerbaar, whereas intact plant cell walls rich in cellulose are poorly verteerbaar for humans.

Importance: verteerbaarheid informs diet design, nutritional labeling, and animal feed formulation, influencing energy availability, nutrient uptake, and overall gut health.