Nutrition
Food supplies compounds needed for energy, growth, repair and protection, grouped as carbohydrates, proteins, fats, vitamins, minerals and water.
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Nutrition: Food, Nutrients and the Six Nutrient Classes
Food supplies compounds needed for energy, growth, repair and protection, grouped as carbohydrates, proteins, fats, vitamins, minerals and water.
Open article →Nutrition: Carbohydrates, Proteins, Fats and Energy
Carbohydrates are the chief energy source, proteins build and repair tissues, and fats combine concentrated energy with structural and metabolic roles.
Open article →Nutrition: Vitamins, Minerals, Water and Metabolism
Vitamins act in minute amounts, minerals support vital structures and physiology, and water enables transport, anabolism and catabolism.
Open article →Nutrition: Malnutrition, Balanced Diet and Food Pyramid
Long-term nutrient shortage causes malnutrition, while a balanced diet and food-pyramid proportions support growth and prevent deficiency.
Open article →Nutrition: Plant Nutrient Sources and Mineral Classes
Plants obtain elements from air, water and soil, and classify essential minerals by the concentration needed for growth and metabolism.
Open article →Nutrition: Critical Concentration, Hydroponics and Aeroponics
Critical concentration separates mineral deficiency from toxicity, while hydroponics and aeroponics deliver measured nutrients without ordinary soil.
Open article →Nutrition: Nitrogen Fixation, Denitrification and Nutrition Modes
Nitrogen fixation converts stable atmospheric N₂ into ammonia, denitrification returns nitrogen to air, and organisms use autotrophic or heterotrophic nutrition.
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