Anterior Pelvic Tilt (APT)Watch
I believe I have APT and I know I have to strengthen my abs and glutes and also stretch out the tight hip flexors. However does nutrition play a role? Do I still have to eat protein and carbs as if I was on a strengthening program, or would it be fine to eat whatever ?
Hi, medically speaking, APT is not a 'thing'. I.e. there isn't a right or wrong way for you pelvis to be aligned. Everyone has a slightly different alignment between their spine and pelvis giving everyone a slightly different posture, but (despite what the gym bros say) there is nothing bad about being in the more APT category. It isn't going to cause you any problems when exercising or in life generally. Stretching/strengthening are not going to make any difference to the structural alignment of your bones, so they really aren't worth the effort. So, carry on exercising and enjoying life without worrying about APT!
Secondly if APT is mainly to do with the hip muscles, I’m sure we can stretch it and reverse the posture, can’t we?
On the second point, the problem is APT isn't caused by your hip muscles being "tight" - the muscles/bones/ligaments etc. in your pelvis are all in a normal position, it just happens to be in a position that some people have given the label "APT" and will say isn't aesthetically pleasing. Stretching in general does very little, and is highly unlikely to make any difference here.
I've linked a couple of articles that might be of interest if you want some more information on this. Hope it helps!