In a couple of months I will be a qualified mountain biking instructor, therefore for the last 2 or 3 weeks i have been riding or running every night pretty much and riding to work and back.
Im eating 3 meals a days (cereal and fruit for breakfast, normally pitta breads and tuna for dinner and other random stuff that is cooked for me for tea)
Im not eating anything much in between these meals except fruit and about 5 or 6 pints of water a day.
For the last 4-5 days ive been feeling really tired really quickly, is this just because I need a days rest, or maybe im now missing something crucial in my diet from the cut out of snacks from my diet.
If anyone has any advice on what this could be and how to combat it, maybe by supplements of food that wont affect my weight loss etc i'd greatly appreciate it.