Mooney, a devout Roman Catholic, said he had fasted during the just-ended Muslim holy month of Ramadan "in solidarity with Arabs and Muslims worldwide."
On Sunday Muslims continued to celebrate the festival of Eid al-Fitr that follows Ramadan when they fast from dawn to dusk.
Mooney was flying back to New York on Sunday after his second visit to the UAE in as many months to raise money for his venture.
If he succeeds in rowing from Goree Island to New York, his boat will then be airlifted to Djibouti from where he plans to row to the UAE.
Mooney, who has set up a website at www.goreechallenge.com to publicise his campaign, said he will buy the 24-foot (7.3-metre) boat in England. Logistics for the journey will be handled by the US State Department, he added.
At the end of 2005, around 40 million people lived with AIDS or HIV, nearly two-thirds of them in sub-Saharan Africa, according to UN figures.
Two million people died of AIDS in 2006.
Source-AFP
SRM/C