Lockhart, who is working for McGregor in preparation for his fight with Mayweather, says nutritional tweaks are necessary going from one sport to the other, with the prominent change being a reduction in walking around weight.
With an MMA match, wrestling, (jiu-jitsu and) having someone on top of you, weight matters – with wrestling it does have a huge effect. With boxing, I believe speed is key. If I’m bigger than you but can’t hit you, it doesn’t make a whole lot of difference. Not as much grappling, the referee pulls you apart as soon as that does happen. I want to make sure the fighter is lower in weight, the cut is not as big and the reload is not as much…For an MMA fighter to reload, they’ll gain 15, 18 pounds, which gives them that advantage (on fight night). [For] boxing, I want him actually walking in close to weight the week of the fight. Walking in, weighing in and maybe gaining a couple pounds after that.