acronym and initialism algae algal bloom amino acid calcium carbohydrate carbon carbon dioxide cell membrane cellulose chemical compound chemical element chloride coenzyme diatomic molecule dietary fiber dietary mineral digestion disaccharide ecological sanitation energy essential nutrient ethanol eutrophication fat fatty acid fertilizer fructose glucose glycogen healthy diet hydrocarbon hydrogen lactose limiting factor lipid list of macronutrients magnesium micronutrient mineral monosaccharide nitrate nitrogen nutrient density nutrition oligosaccharide oxygen peptide bond phosphate phosphorus phytochemical plant nutrition polysaccharide potassium protease protein protein catabolism protist runoff salt saturated fat sewage sodium solvent starch sucrose sugar sulfate sulfur sunlight unsaturated fat vitamin water water pollution