My knowledge/experience is based on over 30 years of training and fine tuning my nutrition requirements over the years to achieve optimal results in terms of condition and performance.As such i rarely suffer ill health or require any sort of intervention where medicines are concerned - so while i dont speak from experience in terms of managing poor lifestyle conditions/illnesses,what i eat has served me very well and continues to do so.
As i said above research Alkali foods (as they neutralise/revers the affects of inflammatory types) and the Mediterranean diet (based on lean meats and healthy oils/fats).
Ensure you include fibrous/complex carbs as fuel/energy sources and stay away from starchy/processed and sugary varieties.
Start the day with a good breakfast - porridge/muesli with greek yogurt or boiled/poached eggs on wholegrain/rye bread
Lunch - sweet potato and lean meat/cottage cheese etc.
Tea - Lean meat/fish stirfry or steamed veg (eat as much green veg as you want)
Snack on almonds/walnuts,tinned fish,boiled eggs,apples,banana,protein shakes/bars
Severely cut back on processed/fast food,caffeine,sugary drinks,confectionery/bakery items etc.
Drink loads of water,herbal tea (not fruit) and use plant based milks instead of cows.
Best of luck