Tapnjojo

Thanks everyone. Your comment have convinced me I've misunderstood! I'm so glad I found this sight.

It's the diet they gave me during my consultation. 3 of their or comparable Protein Shakes and one meal of 3oz lean meat and 1 cup of approved veggies. I will talk to my Insurance co. Thanks

This is the exact two-week diet plan my bariatric surgeon's office required me to follow for the two weeks leading up to surgery. The point of it was to shrink my liver.
This diet plan is utterly unsustainable for six months.
Most people who follow six-month supervised diets for insurance purposes aren't required to follow a pre-op diet that provides them with less than 1000 calories a day.

I would talk to the surgeon's people to verify that this is what they want you doing for the six months. It is not unusual for a couple of weeks pre-op for those docs who need to do the "liver shrinking" thing, but six months is counterproductive. Perhaps things got confused between your six month insurance requirement and the surgeon's week or two requirement?
If not, and they want you to do this for six months, I would look seriously at finding another program.

In an extreme case, this period can be six WEEKS but I've not heard of six MONTHS until you mentioned it.
I'm tipping a misunderstanding or an unfortunate glitch.
Contact the practice or the dietitian ASAP to clarify that you heard it right or that it was written down correctly.
Do NOT change doctor unless you find out that it's not a glitch/miscommunication.

@Tapnjojo

Find a new DR.
ASAP.

I would be worried about that too. Have they said why your calories have to be so low, and for so long? Even when I was on my pre-op diet I was told to stay above 800 calories if possible (and even more when I was post-op), since getting so little in can wreak havoc on your metabolism. Look at the Biggest Loser contestants they studied a couple years ago - every single one of them had a worse RMR after the program than before, and most gained weight back because they could never increase their calories to a more normal range without it affecting their weight.

Who is requiring it to be 700-1000 calories? Most such insurance requirements that I have seen don't specify a calorie limit (nor should they, given the wide variety of patients covered by such requirements) but a more generalized statement about a limited or controlled calorie diet, maybe with something about increased exercise levels.
Philosophically, I look to these requirements, though of dubious value other than for discouraging less serious patients from WLS and saving the insurance company some money, as an opportunity to start developing the good lifestyle habits that will serve them well in the very long term, which will also usually yield some moderate weight loss during its term.
Take a look at what the actual insurance requirements are (there should be a policy bulletin about WLS requirements on the company's website) and discuss them and your specific needs with whomever is imposing this requirement on you. You can consider changing doctors or programs if you don't get a satisfactory solution.
Best of luck,