The aim of the four week marketing campaign, valued in the region of £500,000, is to educate The Sun's reported 7.8 million readers about the dangers of consuming too much saturated fat in their diets.
Activity will include a series of advertorials in the country's most popular paper, linked to editorial coverage in its Live It section on Thursdays.
Content will provide advice to readers and the paper will follow a chosen "Sun Family" as they follow experts' tips.
Display ads will also run in the red-top directed readers to a micro-site featuring articles, recipes and video diaries from the family.
The goal is to show readers that little changes made to their eating habits, such as cutting fat from steaks or using 1% milk instead of semi-skimmed, actually have a much bigger long term affect on the body's saturated fat levels and can make a positive difference to their health.
Abba Newbery, creative solutions director at News International, said: "It's great to work with a client like the FSA who has a responsibility to educate on something as important as healthy eating.
"Sun readers love tips on how to lead a healthier happier life so we are hoping that thousands of them will take up the challenge."
The deal continues a relationship between the FSA and News International that in the past has included the agency body's Eat Well/Traffic Lights food campaign in 2007 and a salt consumption reduction campaign in 2005.
At the start of this year, the FSA announced new plans to clamp down on saturated fats and extra large portions by potentially forcing marketers to promote low-fat and smaller meals.
The government body has launched a consultation, aimed at reducing saturated fat in food products while increasing the availability of healthier options and smaller portion sizes in savoury snacks.
The agency is seeking views on its proposals by 9 March with the final recommendations from both consultations set to be published next year.
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