Should I gain weight for BBL? I want 1600cc in each cheek but not sure if I have enough fat for it. I want dramatic results!

hello thank you for your question and provided information as well.. based in your question  and the picture you showed you are a good candidate for tummy tuck ,full back ad bbl.but its recommended get a evaluation in personal with a plastic surgeon to check if you apply.

While gaining weight before a procedure is not recommended, If you were to do this then it is important that you maintain the weight. If you were to lose the weight after then the results of the procedure would shrink as well. 

I would caution you against such high volume fat transfer. You appear to be a good candidate for liposuction, tummy tuck and a bbl. I would submit to you that the result will be quite dramatic even if you do not have the unsafe amounts of fat grafting done. 

Your goals as well as your selection of your surgeon are important.  Gaining weight is often counterproductive. If you gain weight that is fat, some of the fat will likely be associated with the buttocks.  In almost every case, I do not recommend weight gain prior to a BBL. I think it is better to maintain your stable weight. An exam would provide a better way to evaluate you for the procedure and determine the amount of fat available for transfer. Most patients get an immense benefit with maximal liposuction of the abdomen, sides, and back to obtain the smallest waist possible and then maximal fat transfer to the buttocks and hips. 

Thanks for your question. When planning a Brazilian butt lift, patients can look forward to a double benefit: reducing areas of unwanted fat while gaining a perkier, rounded posterior.  Each procedure must be planned according to the individual needs of patients, harvesting fat from target areas of the torso, thighs or knees and transferring it to create smooth, attractive contours optimized for each person. The amount of fat transferred depends on the quantity available and the extent of buttock augmentation each patient desires.  Sufficient body fat for a buttock augmentation is very patient-specific, depending on an individual’s body shape and proportions.If you put on weight before surgery, there is more to transfer.  But I do not generally recommend this because we augment the buttock during surgery for optimal shape, and if you then lose the weight post operatively you will loose it disproportionately from your augmented buttock and the results could suffer.  We recommend patients to keep their normal weight and body form prior to surgery, and then we are working from a stable situation to create the changes we are working for. 
That said, you definitely have to choose your surgeon correctly and make sure that he/she has the training and experience to meet your goals with absolute safety.  Best is a Board Certified Plastic Surgeon with specialized expertise in this procedure.

Patients interested in BBL often ask questions of the necessary volume for transfer. Ultimately, the answer is two pronged and based upon both patient expectations and the nature of fat graft themselves.
BBL and fat transfer is ultimately dependent upon the long term viability of the fat grafted. That being said the resorption rates of fat transferred can be significant. Clinically this translates to a progressive loss of grafted volume in the months following the procedure.
I tell patients that they can expect resorption or graft loss on the order of 50% (at most; prepare for the worst and hope for significantly better). Additionally some harvest volume is lost in processing the fat graft prior to transfer. Thus I generally recommend that patients seeking even the most minimal volume increase have adequate reserves for grafting of 500 cc per cheek (at minimum).  This means that harvest will usually exceed 1 liter (assuming for processing loss).
However, it important to remember that these are recommendations and can be amended based upon a patient's particular expectations. Some patients only want a subtle change and may be willing to accept a less significant result. But the rule still applies you have to have the fat to transfer the fat.
The question is ultimately a function of your goals. Enough? is a relative question. This is best determined via in-person consultation. Optimally, you should be at a healthy stable weight (preferably with a BMI < 30) with adequate donor sites for harvest. I do not recommend weight gain unless you intend to maintain post op.
With regards to your specific question, I would discourage weight gain for the purposes of harvest alone unless you plan to maintain at a heavier weight. In addition, 1600 cc per cheek in a single session (> 3 liters of fat total) is highly unlikely not only from the perspective of harvest yield but also from the perspective of the capacity to accommodate such volume.
As always, discuss your concerns with a board certified plastic surgeon (ABPS).

Without examining you it is difficult to be certain but based on the photos it looks like you have lots of fat to transfer. The limitation would be whether 3200cc will fit into your butt in a single treatment. Chances are you’ll need two rounds of fat transfer to get the dramatic results you are looking for, sonic after the first round you are unsatisfied and don’t have enough fat you can gain more weight then. The only way to know for sure is to book a consultation with a board certified plastic surgeon near you to see what your options are. Best of luck! 

Hello dear!
Thanks for the question and provided information as well.
Based on your pictures, you are a good candidate for liposuction with BBL, and I think you'll get very good results. You do not need to gain weight.
Liposuction allows your plastic surgeon to transform your entire shape. You can improve your abdomen, back, hips and flanks, and of course your buttock, to give you a beautiful heart shape.
In general, you need to be physically healthy and at a stable weight, have realistic expectations, be a non-smoker and your BMI needs to be 30 or less.
l recommend you to make an appointment with a board certified plastic surgeon to talk about your goals and anything you need to know.
Good luck :)

Hello, from what I see in the photos, you have enough fat to fill your buttocks, but I would recommend an evaluation with a certified plastic surgeon for tummy tuck, since you have extra skin, I hope you have the results you want.
Regards
Jaime Campos MD

Dear Gati123,Please don't get hung up on the number of cc's placed during a BBL.  The amount of fluid re-injected can vary widely between surgeons, all of whom can have similar results.  It is dependent on how the surgeon processes the fat.  Surgeons that do not strain the fat will re-inject larger amounts, but a significant portion of those larger amounts consists of blood, anesthetic fluids and oils from damaged fat cells.  Those fluids are eventually absorbed and do not contribute to the buttock augmentation.  So, a surgeon who does not process the fat might inject 1600cc per cheek and have the same result as a surgeon who processes the fat and only injects 700cc per cheek.  Good luck!