I know one thing for sure - I don’t get enough protein. I have to force it.
If you are into blenders- just add some protein powder to your smoothies. It’s a great meal replacement. I think that snacks are my biggest problem. I never thought about it, until I was telling my son about how differently we ate when I was a kid, mostly because there was no alcohol in our home and little money for snacks. We never ate between meals, no chips and dip, no cheese and crackers, not even pretzels. But we did have desserts after dinner. I weighed 95lbs when I graduated from high school.