There many ways to improve recovery between sessions. From myocascial tissue release, nutrition and rest to supplements and stress management techniques. I will go over some strategies that have yield good results for myself and others in this program.
Myofascial Release, MFR, self-myofascial release
Fascia is elastic tissue that wraps around most of the muscles and joints of the body. It can become tight, overused and even bound (causing adhesions). There are several methods that you can do to treat the fascia with care and help with durability.
Bodies are made in the kitchen. This is one of my favorite sayings and I feel that it is true. You can train as hard as you want, but if you do not eat at least decently well, you will not thrive. I do not advocate restrictive diets or demand students to stick to a cookie cutter nutrition program. Just eat like an adult and drink adequate water :).
If that means you want to eat Paleo, Keto, Vegan or whatever, then great. Go for it. Personally, I eat a rather open diet of meat and vegetables. Fish, grass fed beef, game meat and bacon are my go to animal proteins. Colorful vegetables and some fruit are always part of the day. I also consume a lot of healthy fat. Avocados, olive oil, fish oil, MCT oil and nuts are always on the menu.
I don't think you need to take supplements to enjoy this program. If you are interested in what I take, or what others have taken while on this program, I will outline that below. Again, this is not necessary and is truly "supplementation" to your healthy eating habits.
Caffeine, Coffee, Tea
Caffeine can be a helpful supplement for cognitive enhancement as well as a performance booster during training and activities. You do not have to take caffeine of drink coffee or tea to use this program. I enjoy coffee and tea and drink them daily. If you drink them too, then awesome. Cheers to you :)
Tim Ferriss mentioned Four Sigmatic in his podcasts, so I tried them out. I have been using the coffee with lions mane and chaga in the morning and reishi elixir at night. I have tried several other products of theirs and they are all high quality. There is less caffeine in the coffee (40mg or so) but the chaga seems to provide a good bump in energy. The packs are great for backpacking or on the go use.