Above: Footprint after todays training. 

One of the-- if not the most forward-trust-infused endurance-training-resources is SealFit, founded by Mark Divine. Here are some of his directions regarding food: "What you fuel your body with is critical for developing strength, recovery, and mental acuity. [...] Processed grain, in the form of breads, pasta, cereal and most other things in a box with label, are the enemy to good health and fitness. These processed carbs enter our blood stream faster than glucose in the form of glycogen, and send our insulin levels skyrocketing throughout the day. When it drops back down we are sent a “hormonal hunger” message in the form of a craving to have more of the same junk. In this vicious cycle, the body burns sugar, and stores fat. That is why we have a billion-dollar industry selling low and no-fat products, as if fat was the enemy. It is NOT. Fat is good (or we should say good fat is good). Become a fat burner and burn fat, rather than store it."

Further reading: