Reference article
Seed (Duck Life 3)
The inexpensive food dispensed on the home screen to raise energy.
Getting food
Click the normal food dispenser on the home screen to spend one 
Coins and produce a seed. Feed it to the duck; it raises 
Energy.
Effect
In Flash and 
Retro Pack, a seed provides three 2-XP bites, for 6 energy XP in total. The displayed energy level is the whole-number part of XP ÷ 10, so one seed need not immediately change the visible number.
Value
Five normal seeds cost 5 coins and provide the same 30 energy XP as one 
SuperSeed. There is no racing-skill increase.
Across the games
Compare games and editions on the 
Seed page.