When you pick up a product in the supermarket and turn it around to read the nutrition label, you’re met with a list of numbers and abbreviations. Energy, fat, carbohydrates, and protein are familiar terms – but what about vitamins and minerals? What do those figures actually mean, and how can you use them to understand whether a product supports a balanced diet? Here’s a guide to making sense of what the numbers on a nutrition label tell you about micronutrients in your food.

What Is a Nutrition Label?

A nutrition label is the manufacturer’s summary of how much energy and nutrients a product contains. In New Zealand, most packaged foods are required to display a Nutrition Information Panel (NIP). This panel must show the amount of energy, protein, fat, saturated fat, carbohydrate, sugars, and sodium per 100 g (or 100 mL) and per serving.

Some products also list vitamins and minerals, especially if they are fortified or promoted as nutrient-rich. This is where you can see how much a product contributes to your daily intake of essential micronutrients.

Vitamins and Minerals – Small but Essential

Vitamins and minerals are vital for your body to function properly. They play roles in everything from energy production and immune defence to bone strength and nerve function. Even though they’re needed only in small amounts, too little or too much can affect your health.

• Vitamins are organic compounds that the body can’t make enough of on its own. They’re divided into fat-soluble (A, D, E, K) and water-soluble (C and the B‑vitamins).
• Minerals are inorganic elements such as iron, calcium, zinc, and magnesium. They act as building blocks for bones and teeth and as helpers in many chemical reactions in the body.

How to Read the Numbers

When a product lists vitamins and minerals, you’ll usually see two types of information: the amount per serving (or per 100 g) and the percentage of the Recommended Dietary Intake (RDI) or Daily Intake (DI).

• The amount is shown in milligrams (mg) or micrograms (µg).
• The percentage shows how much of the average daily requirement the serving provides.

For example, if a product contains 60 mg of vitamin C, equal to 150 % of the RDI, it means one serving provides one and a half times the daily recommended amount for an average adult.

What Does “RDI” Mean – and Where Do the Numbers Come From?

RDI stands for Recommended Dietary Intake. In New Zealand, these values are based on guidelines developed jointly for Australia and New Zealand. They represent average daily nutrient levels considered sufficient for most healthy adults. They’re not personalised targets – your actual needs can vary depending on age, sex, activity level, and health status.

For instance, pregnant and breastfeeding women need more folate, iron, and iodine, while older adults may require extra vitamin D and calcium. The RDI is therefore a useful reference point, but not a precise prescription for everyone.

When Should You Check Vitamin and Mineral Information?

For most people who eat a varied diet, everyday foods provide enough vitamins and minerals. Still, there are times when checking the label can be helpful:

• Fortified foods such as breakfast cereals, plant-based milks, and margarines can supply extra nutrients like B‑vitamins, calcium, or vitamin D.
• Vegetarians and vegans should pay attention to nutrients like vitamin B12, iron, and calcium, which can be harder to obtain from plant sources.
• People with allergies or special diets may benefit from checking which nutrients they’re getting – and which they might be missing.

By reading the label, you can more easily plan a diet that meets your needs without overdoing certain nutrients.

Læs også:

Eat with Balance: How to Navigate Social Situations Involving Food and Drink

Health

Learn how to maintain balance when food and drink take center stage at social events. With practical tips for planning, flexibility, and mindful choices, you can savor every occasion while staying true to your well-being goals.

Listen to Your Body – Adjust Your Training to Its Signals

Health

Your body is constantly sending messages about how it feels and what it needs. By learning to interpret these signals, you can optimize your workouts, prevent injuries, and achieve a healthier balance between effort and recovery.

Understanding Nutrition Labels: What Do the Numbers Tell You About Vitamins and Minerals?

Health

Nutrition labels can be confusing, especially when it comes to vitamins and minerals. This article explains what the figures really mean, how to interpret daily values, and how to use this information to support a balanced diet.

When Life Changes: Adjust Your Habits as You Age

Health

As your body and mind evolve, your daily habits should evolve too. Discover how to adjust your routines, nutrition, and mindset to stay healthy, balanced, and fulfilled as you age.

Be Careful Not to Overinterpret

Just because a product is high in vitamins or minerals doesn’t automatically make it healthy. A sugary breakfast cereal might be fortified with iron and B‑vitamins but still contain a lot of added sugar. Always look at the full picture – energy, macronutrients, and micronutrients together.

Likewise, a product without listed vitamin values isn’t necessarily “unhealthy.” Fresh foods like fruit, vegetables, meat, and fish often don’t display vitamin information, yet they’re some of the best sources of nutrients.

A Tool – Not a Final Answer

The nutrition label is a helpful tool, but it’s only one piece of the puzzle. It tells you what’s in the product, not how it fits into your overall diet. Use it to compare products and to become more aware of what you’re eating – not as a substitute for common sense and variety.

Understanding the numbers about vitamins and minerals is ultimately about making small, informed choices every day. The better you know how to read a nutrition label, the easier it becomes to navigate the supermarket shelves – and to give your body what it truly needs.