Guilty about almost 700 calories today

I'm just over three weeks post-op... now eating stage 4, puréed foods. Today I felt so hungry all day and I've eaten about 650 calories today. Is this too much? I literally feel guilty like I had too much to eat today. I guess it's because I've barely been eating 500 calories per day, but I am unsure of the goal caloric intake. Any advice would be appreciated.

No that is not too many. From what I've read on here most people get under 650 for the first 3 months,  but that doesn't mean it is on purpose! My NUT recommends 800 - 1000 and I am 6 weeks out. As long as the calories come from approved sources you should be fine.

• These are the rules I followed/follow: 
•  

• *Drink 48-64 ounces Liquids daily (drink up to a meal, wait 60 minutes after a meal)
  
• *Must eat at least 60 grams of Protein a day (100 or more grams beginning at 1200 calories a day)
• *Eat no fat/lowfat dairy products
• *Eat simple (fruit) and complex (vegetables, whole grains) Carbohydrates (I do not count daily grams)
• *No more than 15 grams of Sugar per meal (more grams if able to tolerate-I can tolerate a maximum of 30 grams Sugar per meal from Simple and Complex Carbohydrate sources)
  
• *Eat 3 main meals (B, L, D) no further than 5-6 hours apart
• *Eat 1 protein snack at 1200 calories a day at least 2-3 hours from breakfast
• *Eat 2 protein snacks at Maintenance calories a day at least 2-3 hours from breakfast and 2-3 hours from lunch
• *3-6 Months After Surgery: I ate 600-700 calories a day
• *6-9 Months After Surgery: I ate 800-900 calories a day
• *9-12 Months After Surgery: I ate 1000 calories a day
• *12-18 Months After Surgery: eat 1200 calories a day (I ate 1200 calories a day until 15 months when I reached my goal weight)
• *18 Months after surgery (or when goal weight is reached before 18 months): Maintenance calories (BMR/RMR & Activity Level) (Malabsorption of calories lasts approximately 18-24 months)

Are you following your program?  We didn't count calories, ever.  We counted protein and fluid and stayed on our plan which was 6-8 meals a day (at that point), 1/4c each, 80g of protein. 

Are you talking about total calories consumed or only food calories? I had about 900 total calories today that is including 2 protein shakes made with skim milk which is the bulk of my 900 calories.

I was told not to go under 600 cals a day so  you're fine.  Most days I eat about 800 calories which I was told was fine.

If you feel good, have energy, and getting in required liquid and protein then don't worry about it.  I probably did that  about 3 weeks.  Frankly didn't worry about it and still don't.  I even go a bit above 1200 sometimes and I am 7 months.  Yes, I could be losing faster - but I am happy with where I am and ultimately you need to make i work for you!!!

I am 5 weeks out and my calories range between 450 and 680 depending on what I eat that day. I make sure to get my protein in (most days 75 or more).

Actually, though, 680 is a bit more than I should be eating. I follow both my surgeon's recommendation AND Kaiser's rules. The latter says that at 5 to 6 weeks I should still be taking in 400 -600 calories & 60-80g protein. At 3 months it will be upped to 600-800 and from 6 months to a year increased to 800-1000 & 80-100g protein. After one year it goes up to 1000-1200 calories per day & 100-120g protein.