No suggestions from me, as everyone is an expert in these things, so what could I add?
But I have been testing my blood sugar for 10 years now, and it has gotten steadily better, such that now it is normal, 24 hours a day. I eat very low carb, and I exercise like a madman.
One other comment, diabetes can create havoc, short and long term. But you can very safely ignore cholesterol. Long term your guest may or may not want to consider cholesterol, but you can safely forget that for his visit.