I need to lose a bit of the gut, but can't affod to lose muscle mass as I'm only really small as it is (170cm and 64kgs). At 60kgs I'm pretty fit, but the only weight I have is carried on my gut.
I gave up personal training a while back (financial decision), and don't have many free weights (just a small set and a TRX).
I have lower back and shoulder/knee joint issues which can aggravate under heavy exercise. Apart from that I'm pretty fit (I think).
I'm also pretty time poor with little free time.
I was thinking of using meal replacement shake in the morning instead of regular protein powder mixed with low fat skim milk.
Checked out The Man Shake.. fark me it's expensive though.. like $120-$130 a month!!
I'm thinking that, as well as my already fast metabolism, might help to get the stubborn gut out of the way, without losing any muscle mass. Maybe start doing some situps and crunches as well (although they can trigger lower back pain if I do too many), as I have absolute no glute strength.