My background is cycling (track) so i'll chime in on that Durian rider and others. They were both drug addicts for starters. Durian doesn't race because at that level the races are tested...... read the comments on their videos and you will hear tales of diarrhea, digestion issues, skin issues, weight gain. I followed DR for a while for his cycling stuff but i stopped because he is a nut. Meth? Ice? Dunno but the dude has several people who have filmed him going beserk..... it's not normal, there is something there.
Cyclists struggle with weight. It makes you fucking hungry. They'll gain 10kg+ out of racing. the more cycling you do, the harder it is to not get fat.
The guys i know racing Cat 1-2 joke about having an eating disorder. They starve to keep the weight down. They'll eat clean carb food sure, but are fucking starving on the inside. Pros who look like skeletons have been open about having issues controlling their weight on 20hrs/wk training schedules.
When doing 10hrs/wk training i struggled to hold weight due to hunger. On 20hrs/wk hunger was out of control and weight flew up even on 250/wk test.
Dr Fung treats the morbidly obese who has clips on youtube. After testing on fatties the data shows:
*Not eating anything doesn't hurt metabolism and burns fat. Water fasting. He doesn't get people stage ready......... so just focus on obese people.
*Eating carbs in a deficit lowers metabolic rate and over a period will result in a binge then weight gain.
*Eating ketogenic is next best to fasting and won't hurt metabolism. You want to do 500-1000 calorie Keotgenic days, high fat.
Any protein/muscle breakdown apparently is done by taking the BAD muscle first. Then when you eat the body rebuilds the bad area better than before (apparently).
It's a very good watch.