"I'm doing Atkins, not keto. Look. This is working for me. I am not hungry. I have no cravings now. I see the weight coming off. Christ I am down 26 pounds in less than 7 weeks? Why change what is working? I DON'T want a diet that I can't maintain. This I can maintain because I am allowed to eat most foods I like.
Have I lost strength? Yes. So I can't bench 450 any more. I can still bench 405, and I FEEL so much better. Today at the gym, I looked in the mirror and noticed my chest is sticking out further than my gut!"
That was you exactly 7 days ago, man. When you stall out for a month, you might want to look at what is going on and formulate a strategy from there. But in 7 days you went from "fuck yeah the weight is flying off, I look great, 26lbs!" to "I've stalled out man, and I'm legitimately considering pharmaceuticals that if used incorrectly or I fuck up the dosing I might do some possibly permanent damage to myself"
Since you're looking at this from a weight loss perspective vs. a strength/lifting perspective it seems, I would go back to the advice given in the weightloss thread by Cad and give it some more time before you start getting antsy about the rate at which you are losing. And like Khane said, when you go from an extreme cut to a less extreme cut (via Atkins) your lbs lost per week is going to be reduced, not to mention you are now carrying around roughly 1/12 less "you" so there isn't as much to lose. Even at 275(estimate from your numbers!) you're still a big strong dude with almost guaranteed a shitload of muscle mass. The fat loss was going to slow down no matter what happened.
Given that it has been exactly a week to 100% flip your opinion of your progress, I am revising my opinion and saying to take more than just a step back hah. You're setting some incredibly unrealistic goals for yourself, and since you have family and lifting/fitness modeling isn't your job/livelihood, you really need to weigh a boost in weightloss based upon potentially dangerous chemicals vs. just sticking with what you are doing, which by your own admission has worked pretty amazingly. Give it more time before you come to any major conclusions about this.