Category: Gcse biology

According to the World Health Organisation, malnutrition is a significant global health problem that encompasses both undernutrition and overnutrition. This comprehensive GCSE guide explores how diet affects health in detail, from the essential components of a balanced diet to the severe consequences of nutritional imbalances.

Over 90% of the nutrients we consume come from macromolecules like carbohydrates, proteins, and fats. However, these large molecules are unusable by the body in their original form. This is why molecules of starch, protein, and fat need to be digested in GCSE science, a critical concept for understanding how our bodies absorb and utilise the energy from our food.