A recent study by consumer watchdog Choice has revealed the best and worst of Australia's fast food choices. Holding the dubious distinction of being the worst fast food choice in Australia is Hungry Jack's Ultimate Double Whopper.

The Ultimate Double Whopper which consists of two patties also contains a whopping 80g of fat, 5085 kilojoules and 2386mg of sodium. Eating one Ultimate Double Whopper will account for more than 60 per cent of an adult's daily recommended kilojoule intake. It would take about one and a half hours of jogging just to burn off one burger.

Red Rooster's Free Range Garden Salad offered the best choice for health conscious consumers eating in a fast food. It only has 479 kilojoules and is the healthiest option from all the fast food choices.

Choice is advocating that the kilojoules value of fast food items should be shown on restaurant menus by February 2012. The country's growing obesity problem has forced the consumer watchdog to think of better ways to inform customers to eat healthier.

The Choice investigation sampled menus from a variety of fast food places like McDonalds, Pizza Hut, Domino's, Subway, Red Rooster, Hungry Jacks and Oporto. Given that the suggested daily intake for an average adult is 8700Kj, 70g fat and 2300 mg of sodium, most of these fast food places all provide high fat options for its consumers. Hungry Jack's had the first and second worst menu items in Australia, with the Ultimate Double Whopper and the Angry Angus burger both at number one and number two respectively.

Pizza lovers should also be aware that two slices of Domino's Meatball and Rasher Bacon Edge Pizza or Pizza Hut's Deep Pan BBQ Meat Lovers pizza will provide more than 2000Kj of an adult's recommended daily intake.

Choice spokeswoman Ingrid Just warned consumers to be aware of what they are putting in their bodies by eating at fast food restaurants.

"When you add chips and a soft drink to something like the Ultimate Double Whopper, you're consuming a day's worth of kilojoules in one meal. It's a safe bet not many of us would realize that."