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How to Know If Food Is Healthy or Not

4 min read

According to the World Health Organization, an unhealthy diet and lack of physical activity are leading global risks to health. Learning how to know if food is healthy or not can help you reduce the risk of noncommunicable diseases such as diabetes, heart disease, stroke, and cancer. This guide will equip you with the knowledge to make informed decisions about your food choices and understand the impact of what you eat on your overall well-being.

Quick Summary

Understand the differences between whole, processed, and ultra-processed foods. Decode nutrition labels to find beneficial nutrients and identify harmful additives like saturated fats, added sugars, and sodium. Make better food choices by evaluating ingredients and embracing mindful eating habits.

Key Points

  • Check Nutrition Labels: Use the nutrition facts panel to identify serving sizes and check for high levels of saturated fat, added sugars, and sodium.

  • Scan the Ingredients: Look for a short, recognizable ingredient list; a long list with unfamiliar chemical names often signifies an ultra-processed product.

  • Understand Processing Levels: Prioritize whole and minimally processed foods, and limit ultra-processed items like sugary snacks and ready-to-eat meals.

  • Choose Healthy Fats: Opt for unsaturated fats found in fish, nuts, and healthy oils like olive oil, while limiting saturated fats from butter and processed meats.

  • Limit Sugar and Salt: The World Health Organization recommends keeping free sugar intake under 10% of total energy and salt under 5g per day.

  • Increase Fruits and Vegetables: Aim for at least five portions of fruits and vegetables daily, as they are packed with vitamins, minerals, and fiber.

  • Cook at Home: Home cooking provides control over ingredients and portion sizes, helping you make healthier choices more consistently.

In This Article

Deciphering Food Labels: Your First Step

For packaged foods, the nutrition facts label and ingredient list are your most powerful tools. They provide a transparent look into what you're consuming, revealing vital information about nutrients, serving sizes, and processing levels.

Reading the Nutrition Facts Panel

This panel provides a snapshot of the food's nutritional composition per serving. Key areas to focus on include:

  • Serving Information: Always start here. The serving size determines the calorie and nutrient values listed on the label. Many products contain multiple servings per container, so it's crucial to adjust calculations accordingly.
  • Calories: This measures the energy you get from one serving. Balancing calorie intake with your body's energy needs is essential for weight management.
  • Nutrients to Limit: Pay close attention to saturated fat, sodium, and added sugars. Health organizations recommend limiting these to reduce the risk of chronic diseases. A good rule of thumb is to choose foods with a 5% Daily Value (%DV) or less for these nutrients.
  • Nutrients to Get More Of: Conversely, look for higher percentages of beneficial nutrients like dietary fiber, vitamin D, calcium, iron, and potassium. A %DV of 20% or more is considered high.

Scrutinizing the Ingredient List

The ingredient list provides a more detailed picture, as ingredients are listed in descending order by weight. This means the first few ingredients are the most abundant. A few simple rules can guide you:

  • Look for short, recognizable lists. A long list filled with unpronounceable chemicals is a red flag for a highly processed product.
  • Be aware of added sugars. Sugar comes in many forms, such as high-fructose corn syrup, dextrose, and maltose. The closer these are to the beginning of the list, the more sugar the product contains.
  • Watch for unhealthy fats. Ingredients like partially hydrogenated oils (trans fats), palm oil, and certain animal fats signal a less healthy choice.

The Spectrum of Processed vs. Whole Foods

Not all processed food is bad. Processing ranges from minimal (e.g., washing and freezing vegetables) to ultra-processed, which involves significant industrial alteration and the addition of many artificial ingredients. Understanding this spectrum is vital for making healthy decisions.

A Continuum of Food Processing

  • Unprocessed/Minimally Processed Foods: These are foods in or close to their natural state, like fresh fruits, vegetables, eggs, lean meats, and whole grains. They offer the most nutritional value.
  • Processed Culinary Ingredients: These are substances derived from natural foods, such as oils, sugar, and salt, used in cooking.
  • Processed Foods: Products like canned beans, plain yogurt, and whole-wheat bread. They are often made with a few simple ingredients and can be part of a healthy diet.
  • Ultra-Processed Foods (UPFs): The most heavily altered foods, loaded with artificial additives, sweeteners, and unhealthy fats. Examples include sugary drinks, packaged cookies, and frozen pizzas. Diets high in UPFs are linked to an increased risk of obesity and chronic diseases.
Feature Whole Foods Ultra-Processed Foods
Processing Level Minimal to none Extensive industrial processing
Ingredient List Short and recognizable Long, with unfamiliar chemicals
Nutritional Value High in natural vitamins, minerals, and fiber Low in nutrients, often with added synthetic vitamins
Additives None Many, including flavors, preservatives, and dyes
Saturated Fat, Sugar, Sodium Naturally low Often high to enhance taste and shelf life
Best For Health Optimal Should be limited or avoided

Practical Steps to Making Healthier Choices

Beyond reading labels, developing a mindful approach to eating helps you choose healthier options consistently. This involves prioritizing fresh ingredients and simple cooking methods over convenience foods.

Tips for Daily Healthy Eating

  • Embrace Whole Foods: Aim to fill your plate with a variety of fruits, vegetables, whole grains, and lean proteins. A simple rule is to shop the perimeter of the grocery store, where fresh foods are typically located.
  • Cook at Home More: Preparing your own meals gives you complete control over ingredients, allowing you to reduce added sugars, salt, and unhealthy fats.
  • Make Smart Swaps: Instead of sugary snacks, opt for fruits or nuts. Use herbs and spices to flavor food instead of relying on high-sodium condiments. A simple homemade vinaigrette is healthier than most bottled salad dressings.
  • Stay Hydrated: Sugary beverages are a major source of empty calories. Replace sodas and juices with water, unsweetened tea, or naturally flavored water.
  • Practice Intuitive Eating: Listen to your body's hunger and fullness cues. This helps regulate portion sizes and prevents overeating, particularly of calorie-dense, ultra-processed foods.

Conclusion: Your Journey to Better Health

Knowing how to determine if food is healthy or not empowers you to take control of your diet and, by extension, your health. By learning to read nutrition labels, understanding the differences in food processing, and adopting mindful eating habits, you can build a sustainable, nutritious diet. While an occasional treat is perfectly fine, making whole, minimally processed foods the foundation of your diet is the most reliable path to long-term health and well-being. Ultimately, your food choices shape your health, so making informed decisions is one of the most valuable skills you can develop.

Frequently Asked Questions

No, not all processed food is bad. Minimally processed foods, like canned beans or frozen vegetables, can be a healthy part of your diet. However, ultra-processed foods, which contain numerous artificial ingredients and are high in added sugar, salt, and unhealthy fats, should be limited.

Added sugars can be identified by reading the ingredients list. Look for words ending in '-ose' (sucrose, dextrose, fructose), syrups (corn syrup, rice syrup), and honey or fruit juice concentrates. The higher up these are on the list, the more sugar the product contains.

The % Daily Value (%DV) shows how much a nutrient in one serving contributes to a total daily diet. For nutrients you want to limit (saturated fat, sodium), aim for a low %DV (5% or less). For beneficial nutrients (fiber, vitamins), aim for a high %DV (20% or more).

Not necessarily. The terms 'natural' or 'organic' do not guarantee a food is healthy. Processed foods can still be labeled as organic or natural, so it is important to read the nutrition facts and ingredient list to assess their true nutritional value.

When eating out, choose meals that are baked, grilled, or steamed instead of fried. Opt for smaller portions, ask for dressings on the side, and choose vegetable-based dishes. Prioritizing restaurants that cook with fresh ingredients is also a good strategy.

Many packaged foods high in sodium don't taste salty. Always check the nutrition facts panel for the sodium content. The %DV can tell you if a food is high (20% or more) or low (5% or less) in sodium.

Unsaturated fats, found in foods like nuts, avocados, and olive oil, are considered healthier for the heart. Saturated fats, often found in fatty meats and butter, can increase cholesterol levels and should be limited. Avoid all trans fats, which are not part of a healthy diet.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.