"The diet's been massive," he said recently. "No sugars, no breads, no nothing, really. Just good veges and broccoli, lots of broccoli. I've learned to love it."
He has also enjoyed being injury-free after a time earlier in his career when his injury list resembled that of a car crash victim. "Fractured pelvis, three hip surgeries, a snapped ankle ligament ... I could keep going if you want," he said.
New captain Brendon McCullum, who chimed in with 32 off 38 balls yesterday, will want McClenaghan and others to keep performing on what is looming as an extremely difficult tour.
Beating South Africa A is a good start after the turmoil of the past couple of weeks around the Ross Taylor saga but the Proteas on home soil will be an altogether different beast.
It's still far too early to make predictions about the tour but winning breeds confidence and this New Zealand side could do with plenty of that.APNZ