Article by - Rajkumar Raikwar

People crave sweets or alter their diets for a variety of reasons, including improved health, weight loss, financial savings, and concerns about the planet or how food is produced.

Consider the popularity of low-fat foods in the 1980s, low-carb diets in the 1990s, and now plant-based protein foods and ready-to-eat meals.

But before abandoning your traditional food choices, it's important to consider the nutritional tradeoffs. If you substitute one food for another, will you still get the vitamins, minerals, and other nutrients you need?

In a recent article, I sought to raise awareness of nutritional differences between foods by producing a new Australia-specific index. It aims to help Australians make more informed food choices and get the recommended nutrients for good health.

Nutrients: Are We Getting Enough?

The Australian Bureau of Statistics publishes tables showing the usual intake of selected nutrients in the population. The tables also show the proportion of Australians whose usual nutrient intake is below what is known as 'estimated average requirement'.

Although Australian adults eat in a variety of ways, they generally get enough nutrients regardless of their diet.

However, insufficient intake of calcium, magnesium, vitamin B6 and zinc is common.

About two-thirds of Australian adults consume less calcium than recommended (ranging from 840 to 1,100 mg/day, depending on age). Worryingly, 90% of women over 50 do not get enough calcium.

Inadequate zinc intake is more common among Australian men, with more than half of those over 50 consuming below-recommended levels.

So what about the free sugars? These include added sugars and the sugar component of honey and fruit juices, but exclude the natural sugars found in fruits, vegetables, and whole milk.

It is recommended that Australians limit free sugars to less than 10% of dietary energy intake. However, nearly 50% of Australian adults exceed this recommended limit.

Pay attention to under-consumed nutrients

Each food has a different nutritional composition. And as the Australian Dietary Guidelines show, we need to eat a variety of foods to stay healthy.

We need to pay special attention to foods that are important sources of nutrients that many Australians don't get enough of. If possible, Australians should try to include more of these foods in their diets.

At the same time, foods that contain free sugars should be consumed in moderation.

We need a variety of different foods to stay healthy.

The new food index I have developed aims to help Australians achieve this goal. Provides an overall nutritional composition score adapted to the Australian dietary context.

The index includes eight vitamins (B1, B2, B3, B6, B12, folate, A, and C), eight minerals (calcium, phosphorus, zinc, iron, magnesium, iodine, selenium, and molybdenum), plus proteins and free sugars.

These 18 items are weighted proportionately to the degree of under or overeating in Australia.

The index, therefore, gives foods a high score if they are low in free sugars and high in the elements many Australians need most: calcium, magnesium, vitamin B6, zinc, and vitamin A.

Foods with few nutrients but added sugars score very low. For example, a chocolate chip cookie weighing 35 grams scored 0.004, and a cola-flavored sweet drink scored less than zero.

Food exchange may not reach the same level

The index can be used to compare foods that can be considered substitutes in the search for healthier, more affordable, or better for the environment.

For dairy products, 250ml of whole milk scored 0.160 and low-fat milk almost as much as 0.157.

The index shows the potential nutritional trade-offs when choosing dairy alternatives. a door

understand the exchanges

To date, complete nutritional information about foods consumed in Australia has only been found in databases used by scientists and nutrition professionals.

For the average consumer, packaging for unprocessed foods such as fruits and vegetables, fresh meats, and some cheeses often lack nutritional information.

Consumers can check the Nutrition Facts table when purchasing processed foods, but only certain nutrients are listed.

I hope my research can influence manufacturers to produce foods that are more nutrient-dense or formulated to meet the nutritional needs of a certain subgroup.

In the future, I hope the index will also be translated into an easy-to-use format or app that Australians can refer to every day, to ensure their changing food preferences translate into a healthier option.