calories and macronutrients

I understand that you're older and may be petite (don't know), but 1000 isn't very many calories. (As context for my saying that, I'm 66, 5'5", mid-120s pounds.)

Calories do determine body weight results, but getting enough of them is the foundation for good health, too.

Are you trying to lose weight? I don't know about you, but I'm less resilient than I was in my 20s. When losing weight, I choose to do it at a moderate rate because of that. If you're maintaining or need to lose and are losing slowly, over a period of 4-6 weeks, then your calorie intake is probably adequate as a foundation for health.

For either calories or macronutrients, it's not essential to be exactly exact. For calories, I figure +/- 50 of a goal that results in meeting my sensible weight management goals - that's spot on. Sometimes, I'll even eat more, if my weight is dropping faster than I'd like, or when I don't want it to drop. (My context: I'm trying to hold my weight steady here, not lose now, as an overall goal.)

Within a reasonable calorie level, close is also fine for macros. That's especially true if a bit over on one one day, under the next, averaging out close to my goal level over a few days to a week.

Because I don't have any health conditions that require me to limit them, I look at both protein and fats goals as minimums, don't mind going over those, within reason, as long as things stay balanced and calorie level is OK. I do have a history of high cholesterol (now resolved), so I try to get plenty of monounsaturated/polyunsaturated fats in the mix (things like nuts, seeds, avocados, olive oil, etc.) and not too much saturated fat (mostly in animal-fat sources).

In my understanding, cholesterol in food is no longer tightly linked with high blood cholesterol - that seems to be outdated research - especially in those without genetically high cholesterol. It's saturated fats and body weight, exercise and fiber/veggie/fruit intake that I pay more attention to, for managing blood cholesterol levels.

At one point, my doctor was encouraging me to take statins, because my blood cholesterol and triglycerides were very high, and my blood pressure was also borderline to high. My family doesn't have a history of those things among family members of healthy body weight, which may be relevant. In my case, I was already exercising, so that wasn't a thing I could much change. I'm not saying this will be true for you, but for me, getting my body weight where it needed to be, alongside some healthy tweaks to mix of fats and veggie/fruit intake, also got my cholesterol, triglycerides and blood pressure into a good range, and has kept them there for several years now.

Back at macros: If your calories aren't lining up with your macros, you might find that some of the foods you've logged were not accurate in the food database. If you take a look at your main line items, those should be easy to identify.

This can happen because food labels (where most of the data comes from) are allowed to round some of the values, plus nearly all foods in the MFP database were entered by regular users. Sadly, some of those people aren't meticulous about accuracy. In addition, because MFP is international, some entries come from countries where labeling laws are different (whether fiber is included in carb totals or not, for example). It's pretty common for calories not to exactly cross-calculate with macronutrients over a day's entries, for those reasons. If you pick accurate database entries, it should be fairly close, not way, way off.

One exception, which may not apply in your case: Alcohol. Alcohol is not protein, fat, or carbohydrate. It's its own thing, similar to a macronutrient in that it has calories (7 per gram), but not a nutrient.

There's no space to enter alcohol in the database, so when people add alcohol to the database, they either add it with calories but no macros (accurate), or put the calories in some other macro (usually carbs - not accurate). If you consume any alcohol - which I'm not saying is evil - that will throw off the totals. (Of course, some alcoholic beverages, even extracts like vanilla extract, can have calories from carbs, fats, or protein as well as alcohol . . . but the alcohol part is just alcohol, not any of those other macros.)

I hope some of the above may help you get things dialed in where you need them, and not stress too much about minor differences between macros and calories. Wishing you much success in managing your cholesterol levels medication-free!