Paul Mason, 54, from Ipswich, weighed 440kg at his peak, but after a gastric band surgery in 2010 and some skin-removal in the US, he is now down to 127 kg.
Mason, who now lives in Massachusetts, US, says he wants more skin taken from his legs, arms and chest.
He said his arms in particular are a "visual thing" that need tackling, the BBC reported.
After his post-gastric band weight loss he was left with hanging folds of skin and opted for surgery in the US rather than wait for Britain's National Heath Service to approve operations.
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He said he had just had an operation to remove a toe ulcer and painkilling injections for arthritis in his knees, but would return to his exercise regime when he had recovered.
He said: "I've got more skin to be removed on my legs, arms and chest.
"The operations aren't too daunting - it's painful obviously, but this problem with my toe has been worse.
"The arms is quite a visual thing that I'm stuck with unless I have the surgery.
Mason had become engaged to Rebecca Mountain and went to live with her in Orange, but she has recently confirmed on Facebook that the pair had split up, the report said.
She wrote that "even though we are no longer together as a couple, I stand behind him 100%".