"You haven't cut out all carbs if you are eating veggies. And why not add some resistant starch source like sweet potatoes or properly soaked and poked legumes."
I'm sorry but this is insane, and I notice a lot of the advice you give around diet is extremely overbearing and harsh. vegetables basically do NOT count as carbs, and saying so is basically encouraging eating disordered thinking. Yes, I understand there are some sugars in veggies like carrots, beets, corn, even some greens, but this stark way of thinking is absolute insanity. and I say this as a 5'8 girl at 130 lbs. I feel like so much of what I read here promotes sad disordered eating behavior. he even said he does not enjoy what he's eating as its not "palatable". I don't understand every aspect of acne, but it seems to be exacerbated by anxiety and inflammation in the body, which leads to disrupted hormones. basically those three things, and several others work together in concert to exacerbate acne. some ppl are obviously far more genetically prone to it, and maybe you will need to take something prescribed by your doctor or naturopath in order to get your hormones or adrenal system under control.
I think when you obsess over your diet in this way, you are just transferring the same anxiety that caused your acne onto your diet, a locus of control. Yes you may clear up because you have physically reduced the possibilty of any inflammation by consuming zero carbohydrates and throwing your body into a fat burning, hyper metabolic state. But this is unsustainable and ultimately bad for your metabolism and psyche.
If you don't deal with the emotional issues behind your anxiety, and just develop a quasi eating disorder, you now have skin issues and disordered eating. I think everyone would benefit better from therapy or some equivalent and emotional healing rather than policing their diet like its the end of the world. so many times I see posts like "I went raw vegan! cleared up my acne! so happy! can barely socialize and am so hungry but clear skin!" then...two weeks later..."I drank half a cup of soy milk and broke out, does soy break me out?????, back to only eating grass nuts and apples :(" or something like that. It doesn't really work. And I say this as someone who eats super healthy, and also whatever they want. Since I allow myself to eat whatever I want, I actually eat about 90% really healthy by choice. it. is. so. much. easier. and my acne is almost gone, but therapy is mostly responsible for that.
also, serious food allergies are a sign of other health issues or at least an inflamed system, and they are not necessarily permanent. Yeah, lots of dairy and gluten are probably not super great for ppl, especially if they don't exercise. But if you're allergic to a bunch of shit that is healthy, its your body having a hyper inflammatory response, not those foods being inherently allergen producing.
best of luck 2 everyone.