There are pitfalls on the Wai diet. I tried it some years ago.
Fat and sugar glycate, and and cause problems on a cellular level. Read about it.
Fruit has high amounts of fructose, can cause fatty liver.
Moderator back then had to consume extra white sugar mixed into his orange juice to stay full of energy. Should tell you something.
So, pay attention to any signs, and, they, like many deficiencies, can take a while to evidence.
I'm only trying it again to, yet again, try to clear up my skin. Luckily, I'm a small woman trying to lose just a couple pounds so my calorie needs are quite a bit lower than most people, the 2 egg yolks, one avocado, and 2 tablespoons of olive oil are already nearly half of my daily calories. I don't need to sip Orange Juice with added sugar to hit my calorie intake, plus I'd rather take more fats than sugars and eat an extra avocado or drink extra olive oil if I'm lacking in calories, but 1200 calories isn't hard to hit. Luckily also this time around, my cravings aren't nearly so bad, and easily ignored. I think it's partially because this time I included the olive oil, when last time I didn't.
Also, I haven't really been eating raw for a while now, though I barely cook my steaks I still blue-rare them because I prefer them warmed a bit with some garlic and pepper. I also slip into eating junk foods a lot too, especially when I'm low on money. Wai diet is probably the easiest and cheapest way to eat 100% raw (if you consider the cold pressed olive oil raw) and I never finished my 2 weeks of acne sample diet before. I mostly only get breakouts around my chin/mouth these days, so I'm hoping the 2 weeks can clear the rest of my face up. Although, it's been a full week now and although my skin is feeling extra soft and good the last couple days, I haven't quite seen too much improvement on my face yet. Hopefully the next week will show some more, better improvement, but regardless after the 2 weeks I will reassess and see if I want to continue on the diet or not for another week. It's not a diet I want to stay on permanently, just until (if) I clear up before reintroducing foods one at a time.