Healthy food guru twins Stephen and Dave Flynn said they are happy to strip down as "sex sells".
The pair are authors of the best-selling cookbook The Happy Pear, which provides hundreds of recipes for healthy meals.
They also jointly run three cafes in Co Dublin and Co Wicklow, as well as a shop selling a number of sustainable products, gift vouchers and online courses, all under the Happy Pear branding.
And the siblings say they have learned the most efficient way to market their philosophy is by stripping topless and flaunting their ultra-fit figures.
Dave told the Irish Independent: "We are all ultimately mammals, I think sex sells and I have no problem using our resources [like] we have when our whole purpose is to build a happier, healthier more connected world.
"If it's to encourage people to eat more fruit and veg and become better versions of themselves, then that's grand."
The brothers also admitted that while there is always a sibling rivalry between the two, since they've matured they no longer come to blows.
Dave added: "I think the last one was about 12 when you mashed my head off something and then I think we realised it's much too destructive we could really cause damage to each other.
"It just changed. You wouldn't dream of it now."
