"I'm definitely eating healthier," he says, noting that he has more pasta, fruit, vegetables and lean meats.
"After eating a good meal, I'm just happy. It relates to my swimming. I'm having more than just a couple good practices in a row. I'm having a week where practices are unbelievable, and I think it's due to my diet."
It all could lead to an unbelievable story line in London, with Lochte overshadowing Phelps, who won a record eight golds in Beijing.
"I'm going to race as many events as I physically, possibly can," Lochte says of the 2012 Games. "Nine would be really nice. We'll see."
Whatever he is eating, or however he is dieting, I would buy that cookbook... Did you hear that Octagon? Make an "informercial" please.
On what Michael Phelps had to say on the 400 IM:
But encouraged by his mother, his coach and by the current times in the event (Lochte's winning time in the 400 IM in nationals was more than six seconds off Phelps' world record), Phelps is keeping an open mind about whether to swim it at the 2012 Olympics in London.
"I don't think I'm in the best shape I could be to swim that race how I want to," he says of his prospects for Thursday, "but I think it's a good opportunity to see if that could be an event that could still be in the program for the next two years."
Lochte and Phelps - one is talking the potential of going for 9-freaking-medals and the other is not really prognosticating or playing his cards close to his chest.