Gaining

I won't say that it is impossible to gain 8-10 kilos a month but it is definitely not easy. From the research I've done myself, it seems more likely that you'll level around 4-6 kilos every month, or roughly slightly more than a kilo every week.

After all, the fat has to travel from the intestines through the lymph and your liver, into your blood and into your fat cells, and there is an upper limit to how fast the liver can "package" this fat for further transport through your blood stream.

Really pushing things to the very limit will also put a strain on your liver, basically turning you into the human version of a foie gras goose whose liver has grown to immense sizes in order to try to compensate for the gigantic food intake.

It is not impossible that you can reach a gain the first month of up to 8-10 kilos (however I doubt it) but I suspect that some of it might be water and also I suspect that after that, your weight gain will decline as your liver grows "tired" of working so hard.

One trick is to wake you up at night and give you a proper feeding there as well so there will never be more than roughly 4 hours between your large meals. The night is basically the period where we go without eating or drinking for the longest time so that might add some extra percent to how much you'll be able to gain every month.

It also depends a lot on how your body responds to intense feeding. Just as some build muscle very well, some also build fat very easily, so given your already pretty impressive size at a young age, you might be one of those that can really both eat a lot and gain a lot. Time will show but no matter what you're certainly in for an interesting experience.

I wish you all the best!

I actually agree with you 100% on this and thank you for qualifying the debate. I was not talking about your average gainer here but about what is humanly possible, as we're here dealing with a situation where the feeder wants to make his feedee gain as much as possible per month.

Only few gainers and feedees are fed to the limit of their digestional capacity but it seems that that is very likely to happen here and my considerations were within that reference frame. Even eager feedees/gainers I know rarely keep up a gaining pace of much more than 0.25-0.5kg a week but even they don't have a calorie intake close to what's humanly possible.

I did not bring into the the debate what the health consequences might be for pushing the body to max capacity as it does not seem to be of any concern to feeder feedee in this case.

Growing .5-1kg a day is not difficult, it's maintaining it for any length of time that's hard. One of the benefits of a feeder, perhaps. If feeder and feedee agree to disregard the feedees feelings for a period of pushing, it could make for a very intense and hot experience.

Sure. However it works, the feedee is not likely to feel like maintaining the meals, sedantary lifestyle, or gainer shakes that it takes to continue to push. More fat always feels good, but everything else about growing at speed feels bad after a bit. Some help to push through that, be it encouragement, manipulation, or force (all agreed on before hand, and I say this as a gainer) could certainly extend the time it's kept up.

All ancedotal, of course, but the fastest/longest I've grown was 1kg/day for ten days, and the fastest I've ever known someone to grow was ~45kg in a month, though he didn't have help, just how he reacted to a breakup.