I used to love French stick, cheese & wine. I also ate pizza, pasta, chips & porridge (not necessarily together) and drank beer. Loved the taste of it all. Didn't feel bad, but, I used to get ravenous at 12:00 and 17:00. I went Primal Lite in March and started to lose weight. I now do not need to eat as much or so regularly.
People may eat stuff that is harming them over the long term without externally exhibiting signs that something is wrong. I used to regularly (& often) get colds. I have not had one since March even though my wife has (she's still on grains etc). In the old days, I would certainly have caught any cold she brought into the house.
One of the reasons I cut out grains is because my older daughter is Coeliac, and, when I read TPB it made me realise that perhaps it may be a good idea for my body to have no grains. Mind you, I do still have the very occasional white rice or rice noodles in a dish that my wife makes. At Christmas I will also have Yorkshire pudding, christmas pudding and christmas cake just because they taste so good. I am undecided about mince pies and will see how I feel Christmas Day.
Why use a sledge hammer to crack a nut when a steam roller is even more effective, and, is fun to drive.