Nutrition supports energy, growth, tissue repair, immune function, bone health and long-term metabolic health. There is no single eating pattern that is right for everyone. Nutritional needs change with age, activity, pregnancy, medical conditions, cultural preferences and access to food.
Building a balanced eating pattern
For many people, a nutritious pattern includes a variety of vegetables and fruit, whole grains, legumes, nuts and seeds, appropriate protein sources and mostly unsaturated fats. Limiting excessive sodium, added sugars and highly processed foods can support cardiovascular and metabolic health without requiring perfection at every meal.
Nutrition-related topics
- Healthy Weight Management — sustainable approaches to weight and metabolic health.
- Cholesterol and Diet — dietary approaches that can help lower LDL cholesterol.
- Type 2 Diabetes — blood glucose, treatment and long-term health.
- Celiac Disease — an immune-mediated condition requiring a gluten-free diet after appropriate diagnosis.
- Lactose Intolerance — symptoms and dietary management.
- Food Allergy — immune reactions to foods and safety considerations.
Vitamins and minerals
Most nutrients can be obtained from a varied diet, but supplements may be appropriate in specific situations. Needs can differ during pregnancy, with restrictive diets, confirmed deficiencies, malabsorption, certain medicines or medical conditions. More is not always better: excessive doses of some vitamins and minerals can cause harm.
Weight and health
Weight is only one aspect of health and is influenced by many biological and environmental factors. Nutrition care should avoid stigma and consider blood pressure, glucose, cholesterol, fitness, sleep, mental health and individual goals rather than focusing on a number alone.
When professional advice is useful
Seek individualized advice for unexplained weight loss, persistent digestive symptoms, suspected nutrient deficiency, difficulty meeting nutritional needs, complex food allergies, pregnancy-related nutrition concerns or medical conditions requiring dietary changes. Eating disorders require appropriate medical and psychological care rather than routine dieting advice.
Sources and further reading
Last reviewed: 4 September 2026. This page provides general health information and does not replace individual medical assessment or treatment.