Difficulty reaching daily calorie limit

We need to be able to see your diary in order to give you good feedback...

Without seeing it, I would say to add foods that are more calorie dense yet still very healthy. You could add nuts, olive oil, etc. Just adding random foods that are higher in calories isn't going to get you to your goal of getting healthy.

How many meals do you eat a day? Maybe you should try increasing your metabolism by eating like a toddler,having many small snacks throughout the day. Definitely do not eat more fatty foods to make up for the deficit if your trying to lose weight. I almost always am under my goal. If you feel your not eating enough just make sure what you do get in has the nutrients minerals fibers and proteins you need. Like eating a teaspoon of spirulina mixed with OJ will you give all the nutrients and minerals you pretty well need for the day, also snacking on hemp hearts and almonds are great finger foods to eat consistently. Why you shouldn't eat higher fat foods is because it's just going to clog your arteries, cause stress on your body and raise your blood pressure. If you want to get more fat in get the omega 3's and 6's fats found in fish,seafood,hemphearts,flax seeds. These are the right types of fats that are only beneficial to your body and brain health( helps with depression).
I hope some of this info is useful.
-Kiera

You could probably get away with eating fattier foods (perhaps as a treat) however, in order to feel all around better about yourself i would suggest eating foods higher in protein and more whole grains because they fill you up and are high in healthier fats and useful calories. But pspetralia is right, your food diary is the best way to determine what you could add into your meals to up those calories

Add in more calorie dense foods like oatmeal and healthy fats like peanut butter and avocado, also don't fall into the "diet food trap" eating only reduced calorie foods or only tiny portion sizes. Also you can save up calorie shortages for cheat days, I usually am around 200 calories short per day (my goal is 1600 plus I burn 300-500 calories a day), I save that up for days I know I'll go over like weekends and special events so I don't feel guilty going over those days