A helpful, exam-ready resource for teachers & students.

This abridged and structured revision guide is designed to help IB DP Sports Science (SEHS) students revise Topic A2 Hydration & Nutrition by condensing key textbook content into a clear, accessible format. It provides structured coverage of the topic while simplifying complex physiological concepts, making it a useful tool for both teaching and independent study.

Topic A2 Hydration & Nutrition forms part of Theme A: Exercise Physiology and Nutrition of the Human Body, one of the three core themes in the IB SEHS course. This theme examines how the body regulates hydration, uses nutrients for energy, and supports performance during physical activity.

Why This Resource?

Covers Key Syllabus Content – Structured to support revision of the main concepts within SEHS Topic A2 Hydration & Nutrition.

Structured for Easy Review – Information is organised into clear sections so students can quickly locate and revise important ideas.

Interactive & Engaging – Includes digital checkboxes so students can track their progress while revising.

Time-Saving for Teachers – Can be used as a teaching reference, revision outline, or structured study guide with minimal preparation.

What’s Inside?

Water & Electrolyte Balance – Understanding how hydration is regulated in the body and how fluid balance affects performance.

Hydration Status – Key concepts such as euhydration, dehydration, and factors affecting fluid intake and loss during exercise.

Electrolyte Regulation – The role of electrolytes such as sodium and potassium in maintaining physiological balance.

Fuelling for Health & Performance – How carbohydrates, proteins, and fats support energy production and recovery.

Macronutrients & Micronutrients – The roles of major nutrients and essential vitamins and minerals in athletic performance.

Energy Systems Overview – How the body produces energy during different intensities and durations of exercise.

Nutrition Strategies for Exercise – Nutritional considerations before, during, and after physical activity.

Key Terminology and Definitions – A concise list of essential vocabulary related to hydration, nutrition, and performance.

This Resource Is:

Concise & Effective – Focuses on the most important ideas without overwhelming students with excessive detail.

Exam-Focused – Organised to support quick revision of key SEHS concepts before quizzes, tests, or exams.

Versatile – Suitable for lessons, revision sessions, flipped classrooms, or independent study.

Use this resource to support your existing materials and provide students with a clear, structured approach to revising SEHS Topic A2 Hydration & Nutrition.