When asked about their eating habits, 37% of respondents said they don't eat their recommended '5-a-day' and 60% wish their diet was healthier.
Fans were also asked whether rugby league players inspire them to be fit, to which 72% agreed.
Tina Clare, Head of Brand at Engage Mutual, said: "These results show that fans do want to be fit and healthy. They're inspired, and this is a great start - now they just need to put this into practice and take a few small steps to make their lifestyle healthier."
"We feel it's important to highlight the importance of health and fitness and will be working with clubs to highlight the benefits of healthy living to rugby league fans across the country."
"Rugby League players illustrate optimum health and fitness and we have superb ambassadors who can pass on tips and advice to fans out there. We'll be working hard to ensure that the 'engage with your health' message is spread to everyone."
Harlequins star and 'engage with your health' ambassador Danny Orr thinks that running is a great way to maintain fitness. Danny said: "The great thing about running is that there are no age limits to it and it is so easily accessible to everyone. When I was younger I used to run home from school and it had such positive effects on my fitness."
For information on health cash plans from Engage Mutual call 08007812920 or visit engagemutual.com