sugar and the immune system

I've greatly lowered my saturated fat intake

I've almost never eat transfats

I've lowered my intake of refined carbs....focusing on whole grains and more fiber

I almost never eat foods with partially hydrogenated oil in them

I've increased my intake of healthy fats (avocado, salmon, certain nuts)

I've cut my intake of fried food by a lot

I've moved to lower fat protiens (away from beef and more toward chicken, fish, turkey, and lean pork)

Now they are telling me I have to cut back on my fruit intake? 

What exactly am I supposed to eat?????????????