Nutrient uptake refers to the process by which living organisms, such as plants and animals, absorb essential nutrients from their environment to support their growth, development, and overall health. This process involves the uptake of various nutrients, such as nitrogen, phosphorus, potassium, calcium, magnesium, and micronutrients, from soil, water, or food sources. Nutrient uptake is essential for sustaining biological functions and plays a crucial role in maintaining the balance of nutrients within an organism. Researchers in this field study the mechanisms and factors influencing nutrient uptake, as well as ways to optimize nutrient uptake efficiency in different organisms to improve agricultural productivity and promote better nutrition.