Saturation Effect command is measured in ticks, and not seconds as suggested when creating command.

/effect give @p minecraft:regeneration 200 0 false

Gives the player the effect of Regeneration for 3 min 20 seconds. This is as expected, as the field for time suggests ‘seconds’

/effect give @p minecraft:saturation 200 0 false

Give the player the effect of Saturation for 10 seconds. This isn’t as expected, as the field for time suggest ‘seconds’ while this value is being translated into ticks.

Please review the attached video for demonstration of this discrepancy.