Energy Balance, Diet, Nutrition and Hydration
Relate energy intake and expenditure, nutrient roles, balanced diet and hydration to health and sporting demand.
How to prepare for the written examination
Move from accurate theory to a scenario-specific mechanism, consequence, evidence and judgement. Complete all practical performance and NEA work only through authorised centre arrangements.
Core concepts
Concept 1
Energy balance compares energy intake with total expenditure over time.
Exam cue: Identify the activity demand before selecting the relevant nutrient or hydration role.
Concept 2
Carbohydrate, fat and protein have different primary roles, while micronutrients, fibre and water support health and function.
Exam cue: Explain the pathway from intake or deficiency to physiological and performance consequence.
Concept 3
Diet and hydration requirements vary with activity, environment and person, while population guidance should not be treated as individual clinical advice.
Exam cue: Use current official guidance and the current specification for any exact figure.
Risk pitfalls and guardrails
Calling one nutrient universally good or bad.
Guardrail: Do not replace explanation with a named sport, an undated current example or practical work that belongs to NEA.
Assuming sweating always indicates adequate hydration.
Guardrail: Do not replace explanation with a named sport, an undated current example or practical work that belongs to NEA.
Giving an individual diet prescription.
Guardrail: Do not replace explanation with a named sport, an undated current example or practical work that belongs to NEA.
Memory anchors
Energy balance
The relationship between energy intake and total energy expenditure over time.
Carbohydrate role
A major source of energy, particularly relevant to exercise intensity and stored glycogen.
Protein role
Supports growth and repair of body tissues rather than serving as the default fuel.
Fat role
Provides concentrated energy and supports insulation and other body functions.
Hydration role
Adequate fluid supports blood volume, temperature regulation and physiological function.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
What is energy balance?
What is a positive energy balance?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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