Low potassium /low cholesterol/pre-diabetes advice wanted

If you need low potassium, it's best to avoid most vegetables [tomatoes, potatoes and of course bananas are really high in potassium]. If you don't like the idea of getting rid of potatoes completely, you can peel/blanch/drain them to cut the potassium content in half.

Here's a list of foods that are high in potassium, though note that they consider any food with more than 200mg per serving as "high", so you can have some of these in moderation [assuming you're on the typical 2000mg potassium restriction diet]:

http://www.webmd.com/food-recipes/tc/high-potassium-foods-topic-overview#1

Eating like a diabetic is less about restricting foods as it is about plating your meals so there is a variety of foods (fats, carbs, protein) in every meal, in proportion. It is also important to eat regularly on a schedule.

I suggest you compose several meals according to the diabetic model, restricting to low potassium foods of course.

http://www.diabetes.org/food-and-fitness/food/planning-meals/create-your-plate/

It takes some planning at the beginning but as soon as you have several meals figured out it will get easier.

You may also want to look at the DASH diet which is heart healthy (low cholesterol). It is a little more strict than the diabetic model.

http://dashdiet.org/default.asp

If you want to go super geek you could draw a Venn diagram to see what foods are low potassium, low cholesterol, and diabetic friendly.

I'm pretty sure fatty fish like salmon with a side of asparagus would make the cut.

Diabetes is better served with whole grains, but whole grains are higher in potassium. A trick to slow down the carb absorption is to add fat or vinegar to the carb. So butter those noodles.

Cholesterol that you eat does not affect the cholesterol in the blood stream. So do not worry too much about eating cholesterol. Losing weight will help pre-diabetes tremendously.
Foods low in potatsium:
http://www.livestrong.com/article/493245-menu-for-low-potassium-diet/
http://www.uptodate.com/contents/low-potassium-diet-beyond-the-basics
https://medlineplus.gov/ency/article/002442.htm

When eating fruits:
Choose peaches, grapes, pears, cherries, apples, berries, pineapple, plums, tangerines, and watermelon

When eating vegetables:
Choose broccoli, cabbage, carrots, cauliflower, celery, cucumber, eggplant, green and wax beans, lettuce, onion, peppers, watercress, zucchini, and yellow squash