So after reading this, I decided to experiment with what is currently available, so I got a STR leaf and scrolled it for Avoid and HP.
Start Stats : 5 STR, 1 DEX, 1 Avoid, 15 HP, 4 slots
1st Syrup : 5 STR (0), 0 DEX(-?), 2 Avoid(+1), 25 HP(HP +10, like +1?), 3 slots
2nd Syrup : 8 STR (+3), 3 Avoid (+1), 5 HP (HP -10, like -1?), 2 slots
3rd Syrup : 8 STR (0), 5 Avoid (+2), 0 HP (-?), 1 Slot
4th Syrup : 7 STR
(-1), 4 Avoid
(-1), 0 Slots
It seems that multiple stats can decrease/increase by the same value.
Hmm, I do wonder what else it could possibly be.