lownutrient
Lownutrient is a nonstandard, umbrella descriptor used in nutrition, ecology, and agronomy to denote a condition or substance with limited availability of essential nutrients. In nutrition, it refers to foods or diets with low nutrient density—calories that provide little in the way of vitamins, minerals, and other micronutrients. In ecological and soil science contexts, it describes environments with low concentrations of plant-available nutrients, such as nitrogen, phosphorus, and potassium, which can limit plant growth.
In practice, low-nutrient conditions can arise from poor soils, erosion or leaching, drought, or intensive farming
The term is informal and nonstandard, and its usage varies by discipline. In professional writing, researchers