No, one can mock or insult the President with impunity. The First Amendment applies here. It should be noted that in the 1790s, the Federalist-controlled Congress passed the Sedition Act which made criticizing the President or Congress a crime.
Polycystic kidney disease (also called PKD) causes numerous cysts to grow in the kidneys. These cysts are filled with fluid. If too many cysts grow or if they get too big, the kidneys can become damaged.
TKD is a Targeted Ketogenic Diet. It's a modified version of the Standard Keto Diet (High fat, adequate protein, very low carb) where carbohydrates are consumed around exercise times. SKD will be fine for the vast majority of people, but if you find yourself hitting a wall in an intense workout, it can help out by giving you a bit of a glycemic 'boost' for the workout and promoting post-workout glycogen synthesis.