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Nutrition
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Wellness Lifestyle

Nutrition

Good nutrition is essential for maintaining health across all life stages and reducing the risk of chronic conditions like heart disease and diabetes.

Overview

Good nutrition is important in keeping people healthy throughout their lives—when they are babies, toddlers, children, adults, and then older adults. It can help people live longer and lower their risk of health problems like heart disease, type 2 diabetes, obesity, and more.

Healthy Eating Principles

Good nutrition is about healthy eating. This means regularly choosing healthy foods and beverages. A healthy eating plan should give your body the energy and nutrients that you need every day. Nutrients include proteins, carbohydrates, fats, vitamins, minerals, and water. The plan should also take into account your preferences, cultural traditions, and budget.

Healthy eating does not mean that you have to follow a very strict diet or eat only a few specific types of food. It doesn't mean that you can never eat your favorite foods. You can eat a variety of foods, including less healthy favorites. But it's important not to eat too much of those foods or have them too often. You can balance those foods with healthier foods and regular physical activity.

Keys to a Healthy Eating Plan

The keys to a healthy eating plan include:

  • Eating a variety of foods, including vegetables, fruits, and whole-grain products
  • Eating lean meats, poultry, fish, beans, and low-fat dairy products
  • Getting enough fiber
  • Drinking lots of water
  • Limiting salt, added sugars, alcohol, and saturated fat
  • Making sure that you get enough nutrients, especially calcium, vitamin D, and potassium

Frequently Asked Questions

Offer fortified plant milks, yogurt alternatives, and foods like sardines, salmon, and fortified cereals. A daily supplement can also help if dietary intake is low. What is a practical way to read nutrition labels for added sugars and sodium?::Look at the Nutrition Facts panel: added sugars are listed under total sugars, and sodium is shown in milligrams. Aim for foods with less than 5 mg of sodium per serving and less than 5 g of added sugars. Can I still enjoy my favorite desserts while staying on a healthy eating plan?::Yes—serve smaller portions, use natural sweeteners like fruit or dates, and pair desserts with protein or fiber to slow sugar absorption. Balance indulgences with nutrient‑dense foods throughout the day. How much water should I drink daily, and does it vary by activity level?::A general guideline is 8–10 cups (about 2 liters) per day for adults, but increase intake by 350–700 ml for each 30 minutes of moderate exercise or in hot climates. Listen to thirst cues and monitor urine color (pale yellow is ideal).
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

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