Not into the idea of "clean food" and "dirty food". All food is clean, unless it's fallen on the ground or something. Eating gluten free and sugar free makes me feel better and less groggy, so it's good for me. It might be different to you.
Other than that, this book is not focused on fatmisia nor changing corporeal dimensions, which is nice. It's more focused on flavour and feeling well. Could be used by diabetics, vegans and coeliacs, with some of the recipes keto-friendly for those with neurologic conditions that can be regulated by using such systems.
Most of the recipes require the same staples (almond flour, coconut flour, cacao, banana/chia/egg, maple syrup, sugar-free choc chips), and as long as you have those things available, you're sorted.
I've made a few recipes already, including the chocolate mug cake, cookie dough and ice cream. Arman does seem to have a *very* sweet tooth, so I'd recommend you measure your sweeteners more or less according to your taste. I use coconut syrup instead of maple syrup to prevent sugar spikes, but I think I'll try using maple syrup but in smaller amounts next time.
Recipes are fast and straightforward. The mug cake took less than 15 minutes, including prep and microwave. Includes plenty of cold, raw and microwave desserts for those of us who can't really use the oven and hob.