Pellets

 serve as a food source that spawns randomly around the map (Excluding Sparkling Red Pellets). When a snake dies, they will leave their pellets dropped on the map with it corresponding to their mass.

Red Pellets (Ordinary)
The most common pellet. A snake will get some mass if it eats it. They reward you with a score of 50.

Sparkling Red Pellets
These are the only pellets that don't spawn randomly. Instead, they spawn when a snake tries to kill someone larger than it, if 2 snakes the same size hit, if a snake gets hit by Venom, or if a snake hits Spikey Things. They will (?) give you twice the mass of an ordinary Red Pellet. They reward you 120 XP.

Purple/Venom Pellets
These pellets give you Venom. They may give you 1 dose to full venom. (?) They also give you 50 XP.

Blue Pellets
These Blue Pellets will increase your speed for a while and it also give you the same mass as a Red Pellet and also reward you 50 XP.

Green Pellets
These Green Pellets will make you immune to being killed by another snake (excluding venom?) for 5 seconds (?), and it also rewards you the same mass and XP as the Red Pellet does. If you encounter a snake almost the same size as you after eating the Green Pellet, you will kill them. They do NOT protect you from Spikey Things.

Golden Pellets
These Golden Pellets are the rarest Pellet and usually most sought after. These give you a hefty amount of mass and 125 XP. (?) Collect 5 Golden Pellets and your snake will turn into a Super Snake.