Possibly due to how the game handles rounding, it actually gives 20 maximum health per 100 maximum health total.As the player's natural health regeneration rate is related to the maximum health, it will also slightly increase player's regeneration rate.If the player has used a total of 15 Life Crystals and 20 Life Fruits to upgrade their health capacity to the 500 point maximum, Lifeforce Potion will temporarily boost the player's health capacity by +100, to a total of 600, the highest amount of health one can legitimately reach.