ACE Fitness Nutrition study materials
ACE Fitness Nutrition study resources

ACE Fitness Nutrition cheat sheet

ACE Fitness Nutrition · Keep the key ideas within reach.

Quick reference

Nutrition Science Foundations and Nutrient Requirements

  • Energy values: carbohydrate 4 kcal/g, protein 4 kcal/g, fat 9 kcal/g, and alcohol 7 kcal/g.

  • Adult AMDRs: carbohydrate 45-65%, fat 20-35%, and protein 10-35% of total daily calories.

  • Athlete protein intake: about 1.2-1.4 g/kg/day for endurance training and 1.6-2.0 g/kg/day for strength training.

  • Fiber target: 14 g per 1,000 kcal, roughly 25 g/day for women and 38 g/day for men.

  • Saturated fat below 10% of calories, added sugars below 10% of calories, and sodium below 2,300 mg/day.

  • Nine essential amino acids; two essential fatty acids: linoleic acid (omega-6) and alpha-linolenic acid (omega-3).

  • Glycemic index bands: low is 55 or less, medium is 56-69, and high is 70 or more.

  • Resting metabolic rate is about 60-70% of total daily energy expenditure; the thermic effect of food is about 10%.

  • Total water needs are about 3.7 L/day for men and 2.7 L/day for women, including water from food and beverages.

Quick reference

Assessment, Body Composition, and Behavior Change Counseling

  • BMI = weight (kg) / height (m)^2; underweight is below 18.5, normal 18.5-24.9, overweight 25-29.9, and obesity 30 or higher.

  • Waist circumference flags elevated risk above 102 cm (40 in) in men and above 88 cm (35 in) in women.

  • Essential body fat is about 2-5% in men and 10-13% in women; obesity thresholds are roughly 25% in men and 32% in women.

  • Jackson-Pollock three-site skinfolds: men use chest, abdomen, and thigh; women use triceps, suprailium, and thigh.

  • Transtheoretical stages: precontemplation, contemplation, preparation, action, and maintenance.

  • Motivational interviewing core skills are open-ended questions, affirmations, reflections, and summaries (OARS).

  • SMART goals are specific, measurable, achievable, relevant, and time-bound.

  • Bioelectrical impedance depends on hydration status, recent exercise, and food intake; typical error is about 3-5%.

  • A 24-hour recall, food frequency questionnaire, and food diary trade accuracy against client burden and recall bias.

Quick reference

Program Design, Nutrition Coaching, and Client Education

  • Pre-exercise meal: 1-3 g/kg carbohydrate 1-4 hours before exercise, plus 20-40 g protein when tolerated.

  • During exercise: 30-60 g carbohydrate per hour for sessions of 1-2.5 hours; up to 90 g/hour for longer events using multiple transportable carbohydrates.

  • Post-exercise: about 1.2 g/kg carbohydrate plus 0.3 g/kg protein, or 20-40 g protein, within 0-2 hours.

  • Carbohydrate loading: 8-12 g/kg/day for 24-48 hours before an endurance event.

  • Weight loss target: 0.5-1% of body weight per week using a 500-1,000 kcal/day deficit.

  • Protein during an energy deficit: 1.6-2.4 g/kg/day to help preserve lean mass.

  • Dehydration above 2% of body weight impairs performance; replace about 1.25-1.5 L fluid per kg of body weight lost.

  • Use teach-back and plain-language materials written at roughly a 5th-6th grade reading level.

  • Self-monitoring, goal setting, and stimulus control are evidence-based behavior-change techniques used in coaching.

Quick reference

Professional Practice, Scope of Practice, and Referral

  • Scope: fitness nutrition professionals provide general nutrition education, not medical nutrition therapy, diagnosis, or therapeutic diets.

  • Refer to a registered dietitian nutritionist for diabetes, kidney disease, eating disorders, food allergies, and tube feeding.

  • Referral triggers include rapid unexplained weight loss, amenorrhea, binge-purge behavior, and severe gastrointestinal symptoms.

  • SCOFF screen: sick, control, one stone, fat, food; two or more positive answers warrant an eating-disorder referral.

  • Obtain informed consent and document sessions; protect identifiable client information under HIPAA.

  • Do not prescribe supplements, herbs, or doses to treat medical conditions outside the defined scope.

  • Maintain professional liability insurance and current certification through continuing education.

  • Cultural competence and health literacy affect adherence; adapt communication rather than blaming the client.

  • Collaborate with physicians, registered dietitians, and mental health providers, and refer when needs exceed competence.