How to Read Nutrition Labels: a Guide to Healthier Choices

A person holding a labeled can and learning how to read a nutrition label.

Have you ever read a nutrition label before buying a food item? More importantly, do you know which ingredients support your health and which ones are best to limit?

I’ve been reading nutrition labels and ingredient lists for years. Even so, I still forget to check a label once in a while. When that happens, I usually discover an ingredient at home that I wish I had noticed before buying the product.

Learning how to read nutrition labels doesn’t have to be overwhelming. Once you know what to look for, you can make more informed food choices with confidence.

In this post, you’ll learn how to read nutrition labels, understand ingredient lists, and make healthier choices that support your long-term health.

Understanding Nutrition Labels: Key Components You Need to know

a woman standing in a store

What Is a Nutrition Label and What Is Its Purpose?

A nutrition label is the information panel found on most packaged foods. It provides important details about the nutritional content of a product and helps you make informed decisions before purchasing it.

The purpose of a nutrition label is to help you compare products, understand what you are eating, and choose foods that support your health goals.

The Main Components of a Nutrition Label

When reading a nutrition label, pay attention to these key sections:

  • Serving Size: The amount considered one serving. All nutrition information on the label is based on this serving size.
  • Calories: The number of calories in one serving.
  • Nutrients: Information about nutrients such as fat, sodium, carbohydrates, fiber, sugars, and protein.
  • Ingredients: A list of everything contained in the product, listed from the greatest amount to the least by weight.
  • % Daily Value (%DV): This shows how much a nutrient in one serving contributes to your recommended daily intake.

Understanding these sections can make grocery shopping easier. When you know what to look for, you can feel more confident comparing products and choosing foods that support your wellness goals.

Decoding Ingredients: What to Look For

dairy section in a grocery store

Reading the Ingredient List and Why the Order Matters

The ingredient list is usually located directly beneath the Nutrition Facts label. Some packaged foods contain only one or a few ingredients, while others have much longer ingredient lists.

Some products contain simple, recognizable ingredients that make it easy to understand what is inside the food. Others contain ingredients with long or unfamiliar names that can feel confusing.

One of the most important things to understand is that ingredients are listed in descending order by weight. The ingredient present in the greatest amount appears first, while the ingredient present in the smallest amount appears last.

For example, if sugar appears as one of the first ingredients, the product contains a relatively larger amount of sugar compared to ingredients listed below it.

Learning to pay attention to ingredient order can help you make more informed choices while grocery shopping.

Additives, Preservatives, and Processed Foods: What to know

Many packaged foods contain additional ingredients known as additives and preservatives. Food additives may be naturally derived or made synthetically.

Manufacturers use additives during food processing for several reasons, including:

  • Extending shelf life.
  • Maintaining or improving nutritional quality.
  • Enhancing flavor, color, or texture.
  • Improving the appearance of food.
  • Adding vitamins and minerals that may have been lost during processing.

Preservatives help prevent food from spoiling by slowing the growth of bacteria, mold, and fungi. They can also help prevent fats and oils from becoming rancid, which extends the product’s shelf life.

Nutrients to Watch on Nutrition Labels

When reading nutrition labels, pay close attention to:

  • Saturated fat
  • Trans fat
  • Sodium
  • Added sugars

Here are a few general guidelines to keep in mind:

Saturated fat: Many health organizations recommend limiting saturated fat to less than 10% of your total daily calories.

Trans fat: Choose foods with 0 grams of trans fat whenever possible.

Sodium: Most adults should aim for less than 2,300 mg of sodium per day unless advised differently by a healthcare provider.

Added sugars: The Dietary Guidelines for Americans recommend limiting added sugars to less than 10% of daily calories.

Sugar Has Many Different Names

Sugar does not always appear on an ingredient list as simply “sugar.” It may also be listed as:

  • Corn syrup
  • High-fructose corn syrup
  • Dextrose
  • Evaporated cane juice
  • Brown rice syrup
  • Malt syrup

To estimate how much sugar you are consuming, check the Nutrition Facts label.

A simple way to remember:

Every 4 grams of sugar equals approximately 1 teaspoon of sugar.

For example, a product containing 20 grams of sugar has about 5 teaspoons of sugar.

What Is Maltodextrin?

Maltodextrin is a highly processed carbohydrate commonly used as a thickener or filler in packaged foods.

It can be found in:

  • Breakfast cereals
  • Protein bars
  • Protein powders
  • Baked goods
  • Chips
  • Cookies
  • Some canned foods

Maltodextrin has a high glycemic index. This means it can raise your blood sugar higher and faster than refined sugar. People managing blood sugar may want to pay attention to foods containing this ingredient.

Watch for Hydrogenated Oils

Another ingredient to watch for is partially hydrogenated oil. This means the oil has been chemically altered through a process called hydrogenation.

Hydrogenation is used to improve stability and extend shelf life. Partially hydrogenated oils are a major source of artificial trans fats, which have been linked to an increased risk of heart disease.

Although many manufacturers have removed artificial trans fats from their products, it is still a good habit to check the ingredient list before purchasing food.

Whole Foods: What Are They?

fruits on glass top display counter
Unrefined foods provide naturally occurring vitamins, minerals, and fiber.

These foods can often be purchased in their natural state and still retain their naturally occurring vitamins, minerals, fiber, and other beneficial nutrients.

Whole foods are natural foods that are either unprocessed or minimally processed. They do not contain added additives, refined sugars, or artificial ingredients.

Many whole foods contain only one ingredient and may not even require a Nutrition Facts label. Examples include fresh fruits, vegetables, eggs, nuts, seeds, and some lean proteins.

Choosing more whole foods can help you build a healthier eating pattern while becoming more aware of the ingredients you are consuming.

How to Spot Ingredients to Limit

Reading an ingredient list can help you identify highly processed foods and make more informed choices.

Here are a few things to look for:

1. Watch for Long Lists of Unfamiliar Ingredients

Foods with very long ingredient lists containing many unfamiliar or difficult-to-pronounce ingredients may be highly processed.

While a long ingredient list does not automatically mean a food is unhealthy, it is a good reminder to take a closer look at what is actually inside the product.

2. Check the First Few Ingredients

Remember that ingredients are listed by weight, from the greatest amount to the smallest amount.

If the first few ingredients include added sugars, refined oils, or highly processed ingredients, the product may be more processed than you realize.

3. Be Aware of Certain Additives and Preservatives

Some ingredients have raised health concerns and are worth paying attention to when reading labels.

Examples include:

  • BHA and BHT: These preservatives are used to prevent foods from spoiling. Some research has raised concerns about their potential health effects, although regulatory agencies continue to review their safety.
  • Artificial sweeteners: Ingredients such as aspartame and sucralose are commonly used to sweeten products without adding sugar. Research on their long-term health effects is ongoing, and some people choose to limit them based on personal health goals.
  • Nitrates and nitrites: These preservatives are commonly found in processed meats such as bacon, hot dogs, and deli meats. High intake of processed meats has been associated with increased health risks, including certain cancers.

The goal is not to fear every ingredient on a label. Instead, focus on becoming familiar with what you are eating and choosing foods that contain more recognizable, nutrient-rich ingredients most of the time.

Whole Foods vs. Processed Foods

It is important to understand that almost all foods are processed to some degree. Processing simply means that a food has been changed from its original state.

For example, washing fresh vegetables, freezing fruit, or roasting nuts are all forms of processing. These foods are considered minimally processed and still retain most of their nutritional value.

On the other hand, ultra-processed foods often contain numerous additives, refined ingredients, added sugars, unhealthy fats, and excess sodium.

While not every ultra-processed food is completely without nutritional value, many provide far fewer beneficial nutrients compared to the calories they contain. Most are devoid of any nutrients. They are just empty calories.

Choosing more whole and minimally processed foods most of the time can help you build a healthier, more balanced diet.

Interpreting Health Claims on Food Labels

When shopping for packaged foods, you will often see claims such as low-fat, organic, and non-GMO on the front of the package. These labels can provide useful information, but it is important to understand what they actually mean.

Understanding Common Food Label Claims

Low-Fat:
A food labeled as low-fat contains 3 grams of fat or less per serving. However, a low-fat product is not automatically a healthier choice. Always check the Nutrition Facts label to look at calories, added sugars, sodium, and the ingredient list.

Organic:
The organic label means the ingredients were produced according to USDA organic standards, which include restrictions on synthetic pesticides and fertilizers.

When you see the USDA Organic seal, it means the product contains at least 95% organic ingredients.

Non-GMO:
A non-GMO label means the product was made without genetically modified ingredients. This label can help consumers who want to avoid foods produced with genetically modified crops.

Don’t Rely Only on the Front of the Package

Food packaging is designed to catch your attention. Words such as natural, sugar-free, or whole grain can make a product appear healthier, but these claims do not tell the entire story.

The most important information is found on the Nutrition Facts label and ingredient list, not just the front of the package.

Here are three tips to remember:

1. Read Beyond the Front Label

Do not make your decision based only on the claims you see on the front of a package. Turn the product around and check the Nutrition Facts label and ingredients.

2. Check the Ingredient List

For example, if a loaf of bread claims to be whole grain, look at the first ingredient. Ideally, the first ingredient should be a whole grain flour, such as 100% whole wheat flour, rather than an enriched flour.

3. Compare Nutrition Facts

If a product claims to be low-fat or sugar-free, compare the Nutrition Facts label. Look at the total calories, added sugars, and other ingredients to determine whether it is truly a better choice.

Understanding Low-Fat, Sugar-Free, and No Added Sugar Claims

When fat is removed from a food product, it can sometimes affect the flavor and texture. To improve taste and consistency, some manufacturers may add ingredients such as extra sugar, sodium, or thickeners.

This means a product labeled low-fat is not automatically a healthier choice. Always check the Nutrition Facts label and ingredient list to understand what has been added to replace the missing fat.

A sugar-free label can also be confusing. According to labeling regulations, a product labeled sugar-free can contain less than 0.5 grams of sugar per serving.

It is also important to understand the difference between no added sugar and sugar-free.

A product labeled no added sugar means that no sugars were added during processing. However, the food may still contain naturally occurring sugars, such as the sugars found in fruit or dairy products.

No added sugar also does not mean that a product is free from artificial sweeteners. Always check the ingredient list to see what sweeteners or other ingredients are included.

Making Healthier Choices With Nutrition Labels

Learning how to read nutrition labels can help you feel more confident when grocery shopping. Instead of relying only on the front of a package, take a few moments to look deeper at the information provided.

Here are four simple steps to follow:

1. Start With the Serving Size

Before looking at anything else, check the serving size on the Nutrition Facts label.

The calories and nutrient information listed are based on this serving size, so it is important to consider how much you will actually eat.

2. Use the 5–20 Rule

Next, check the % Daily Value (%DV) and use the 5–20 rule as a helpful guide.

  • 5% Daily Value or less is considered low.
  • 20% Daily Value or more is considered high.

For nutrients you want to limit, such as sodium and added sugars, look for lower percentages.

For nutrients you may want more of, such as calcium, iron, and potassium, look for higher percentages.

3. Read the Ingredient List

Look at the first few ingredients listed on the label. These ingredients make up the largest portion of the product.

Choose foods that contain more recognizable, nutrient-rich ingredients when possible. Also, watch for different names for added sugars, such as corn syrup, dextrose, and other sweeteners.

4. Compare Similar Products

Before purchasing a product, compare nutrition labels from different brands.

Look at:

  • Serving size
  • Calories
  • Added sugars
  • Sodium
  • Fiber
  • Protein
  • Ingredient lists

Small differences between products can help you make a better choice for your health goals.

By learning how to read Nutrition Facts labels and ingredient lists, you can become more aware of the foods you are bringing into your home. You can reduce excess amounts of sodium, added sugars, trans fats, and saturated fats while choosing foods with more beneficial nutrients.

With practice, reading labels becomes easier and can help you plan healthier meals and snacks throughout the week.

Choose progress over perfection. Always.

Final Thoughts

Making healthier food choices starts with understanding what is in the foods you eat. By learning how to read nutrition labels and ingredient lists, you can become more informed, make confident decisions, and choose foods that better support your health goals.

If you want to make better choices for yourself and your family, start by taking a few extra moments at the grocery store to read the labels. Small changes and better awareness can make a meaningful difference over time.

This post is for educational and informational purposes only and is based on personal experience and general wellness principles. It is not intended to diagnose, treat, cure, or prevent any disease, nor replace professional medical or nutritional advice. Always consult a qualified healthcare professional regarding your individual needs, or any question you have regarding a medical condition. Or before implementing any information from this blog. Reliance on any information in this post is solely at your own risk.

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