What to look for in a healthy lunch
A healthy lunch should be around 400-500 calories for women, and 500-600 calories for men, according to nutritionist Orla Walsh of the Dublin Nutrition Centre.
"It will vary depending on how tall, how strong and how active you are but those are good general rules of thumb," she said.
Consumers should also try to eat lunches that contain around 20g of protein, which is filling and maintains muscle mass as you age.
They should also try and ensure that half of every lunch is made up of vegetables.
"A good idea is to make sure every meal is as colourful as possible and contains three different food groups in as natural a state as possible - and don't assume that something is good for you just because it's called salad," she said.
Sushi is a good choice as many Irish people don't eat enough fish, which boosts iodine levels, but people should watch the salt and choose options with seaweed and vegetables.