Eating healthier, to me, is being more mindful of what I eat. Writing down everything I eat helps with that. So I'm not just shoving food in my mouth for no reason without realizing how many calories I'm actually consuming. And keeping a balance of everything. Everything in moderation.
Glucose, fat, sodium, protein, carbs... these are all required by our bodies.
In short, it's a balance of everything. Meat, veggies, fruit, sugars, fats, grains, etc.
In not-so-short:
I'm trying to lose very stubborn weight and build muscle with a slowed metabolism and dying thyroid. No, I don't want a body builder's body, but I do want to see muscle definition. So for me, extra protein is a must. I cut carbs down, but not so much as to induce ketosis. I just want more protein than carbs. I don't care where the protein comes from.
I try to stay under 1500 calories and always have a deficit of calories burned vs calories eaten. But not too much so.
I eat very little pre-packaged food. I have very few cans of things in my cupboards. I do have some though, for convenience. 98% of the time though, everything I eat is made fresh, not packaged or canned. This allows me to control the sodium, among other things.
I have cut lactose out of my diet for a specific health reason. I may be able to add it back in eventually though. So that means that I'm drinking almond, soy, and coconut milks. I use them for my protein drinks that I have 2 - 3 times a day.
I eat quite a bit of vegges - mostly asparagus, spinach, kale, collard greens, green beans, cucumbers, squash, and broccoli. I limit the corn and peas due to higher carbs in them. Almost all of my veges are fresh (save the spinach and corn), and most of them I get from a local organic farmer.
I eat a lot of meat too. I eat quite a bit of fish (mainly mahi mahi and salmon due to the high "good" fat content - caught wild, not farm raised), I eat red meat, chicken and pork. I eat eggs every day. (a boiled egg is my snack at work). I get my eggs and beef from a local organic farmer.
I also eat beans: black, kidney, chick peas mostly.
I try to get enough fruit, but I don't think I do. It's hard to eat fruit and keep the carbs down too. I have an apple every day at work, and I put blueberries, blackberries, and/or raspberries in my protein drinks.
I cook with olive or coconut oil, and actually add coconut oil to my protein shakes now. I have peanut and sesame oils too, but I don't use them as often. They're more for specific dishes. But I do NOT use canola or vegetable oil.
I try to limit the sugars I have too. I have switched to using Agave as my sweetener due to it's lower glycemic index. I do have some sugar in my home, but it's rarely used and it's organic, non-bleached sugar. I use sea salt and kosher salt, not iodized. I will NOT use artificial sweetener [aka, poison]. I do not buy "sugar free" or "fat free" crap.
While I do try to limit certain things (as mentioned above) like sodas, 'fast' foods, etc, I do have them on occasion. If I really want a Pepsi, I have one. If a piece of pie sounds SOOOO good, I have a piece. It is my firm belief that these occasional indulgences of "bad food" is what allows me to continue to eat very healthy the other 99% of the time. I cannot abide by denying myself that which I want so badly. I'm just more aware of what I am eating. I think about it before I eat it. A chocolate bar may sound good, but I consider it before I eat it. I consider whether or not I REALLY want it. I consider the amount of calories I've already eaten that day and if I'm going to work out or not. I consider if something else would satisfy that craving. If I still want it badly after said consideration, then I have it.
I also have one day a week where I allow myself to eat 'what I want" for dinner. No rules applied. Sometimes what I want is really healthy. Sometimes it's not.