Eating well on the night shift


Friday, 12 November, 2021

Eating well on the night shift

Around 1.5 million Australians are employed as shift workers, with more than 200,000 regularly working a night or evening shift. When people work irregular hours, they often eat at irregular hours, increasing the risk of weight gain, type 2 diabetes and cardiovascular disease.

Now a study, funded by the National Health and Medical Research Council (NHMRC), and conducted by the University of South Australia and Monash University is investigating strategies to help shift workers better manage their eating habits when they work at night.

The aim is to find suitable diet plans that can empower shift workers to better regulate their health. UniSA researcher Dr Michelle Headland said that the combination of irregular sleep patterns and eating around the clock can seriously affect shift workers’ health.

“When you work irregular hours, your eating and sleeping patterns are affected, causing metabolic changes that can affect your health,” Dr Headland said.

“Our body relies upon regular rhythms of energy storage and usage, guided by day and night. When we upset this balance by eating or sleeping at odd hours, our body can’t compensate, and we end up with higher levels of glucose which contributes to weight gain.

“Shift work makes traditional weight loss plans extremely hard to follow, so what we’ve been doing is exploring alternatives.”

Co-researcher and UniSA colleague Professor Alison Coates said, “Prevention often comes hand in hand with education. If we can ensure that Australia’s shift workers are informed about healthy food options for the night shift, they can learn to make simple and sustainable changes to their diets.”

“Being prepared is key. By spending as little as 10 minutes a day on planning and preparing your meals, you’re more likely to snack on healthier foods and avoid treats from the vending machine.

“Of course, a healthy variety of foods increases your chance of optimal nutrition, and if you include high-fibre and low-GI foods, you’ll not only stay fuller for longer, but also regulate your glucose and cholesterol levels.

“Choosing smaller serves or meals when you’re on a night shift can stop you from feeling drowsy, without taking on too many calories; and drink water to stay hydrated, as opposed to a coffee — it may perk you up, but too much can drag your health down.”

The study has over 200 enrolled participants and is currently on a final round of recruitment. To find out more or to participate, visit www.unisa.edu.au/research/research-volunteers/weight-loss-study/.

Image credit: ©stock.adobe.com/au/dissx

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