As I have an over active stoma, I am told to avoid high fibre foods. My advised diet is high fat.Cholesterol level is now 13.6.

[kelvin1214]

When two different problems collide, it makes you wonder what to do.

[MikePollard]

If your diet is high fat make sure it's butter, cheese, full fat milk etc ie saturated fat. If you want cholesterol, especially small dense LDL to drop, remove all carbohydrate that is white; potatoes, bread, rice, pasta etc and replace with green vegetables. It's called LCHF:

dietdoctor.com/lchf