Active transport Adequate Intakes Anemia Animal-based protein Bicarbonate Bile B-vitamins carbohydrates case-control catalyst cause and effect Clostridium cross-sectional Daily Value Dietary Guidelines for Americans discretionary calories DRI E. Coli emulsifier enzyme epidemiological epinephrine essential Estimated Average Requirement (EAR) experimental effect Facilitate diffusion fat fatigue fiber food borne illnesses Food has 20 grams of protein per serving, and a total of 540 calories, what % of total calories are from protein