Quinoa seeds: I love mixing quinoa into my porridge as it provides me with vital nutrients, fats and proteins, as well as tasting delicious. Grains and seeds are really healthy and a daily bowl of quinoa or oats has been shown to prolong life.
Mixed nuts: Nuts are my favourite snack between sessions as they contain essential nutrients, protein, minerals and healthy fats. I tend to go for plain nuts, rather than roasted or salted, as I think they taste better, but they are also healthier.