ok Nik,am throwing my two cents in here for you,you mentioned your doing exercise,eating well,etc,to lose weight,aswome,but ,is it enough???? to answer this,no,what many DO not realise is the word metabolism,yeah yeah getting out and running,bla bla,but,anyway,here is the scoop to losing weight,yes my experiences are with dogs,but so what,k,get yourself some herbal detox for the liver,as well as a colon cleanse,this will"up" your metabolism,as well as clean all that junk from your bod,take my word for it,I had a bitch(girl dog folks,using in the right context!) that was 25 lbs over weight at 3 yrs old,lost it all within two months from this regime!!!! As well as became active again!!! Now,for the heart,L-Carnitine,fish oils,ie salmon oil, hawthorn berry,garlic,etc will help a heart,red meats are good for dogs yes,but not so much people,BUT,it's loaded with carnitine which is an essential for the heart,so what do ya do,just take the supplements instead,just a quick note,red meat,imflamatory,white meat(chicken) not imflamatory,grains are imflamatories(ok my spelling stinks,lol),protein is good,carbos yes are needed,but within restraints(veggies are the best source),ya don't burn em,proteins will make ya fat!!!! but less so than carbos!!!!anyway,I just wanted ease your mind about the heart issues,what I told you are so good for the heart,my one dog could been dead yrs ago if it weren't for this regime,and it's yes,the same as people!!! Close to the edge,formally over the ocean!