Allergies and intolerances significantly inform dietetary choices as individuals must avoid certain foods that trigger adverse reactions. For example, those with gluten intolerance must avoid wheat products to prevent digestive issues. Understanding specific allergies helps in planning meals, ensuring nutrition without risking health. This knowledge encourages individuals to explore alternative food options that suffice their nutritional needs while being safe. Being informed allows for varied and balanced meals tailored to each person’s unique requirements and preferences.