In your opinion what’s the optimal hydration levels?
About to begin a cut, 6’5”, 92.15kg, BF 12.9%
Understand holding water is a big factor but what do you suggest? How many Litres a day should I be aiming for?
There are actually no very well established guidelines for EXACT amounts. The most agreed upon number seems to be 1 ounce of water per 1 lean pound body mass. So by your stats, around 180(ish) ounces of water per day (little under a 1 1/2 gallons). Sorry, you’ll have to liter convert. That is a good a place as any to start. From there, just see where you feel, and perform best. (Generally it may be slightly higher with hard training, lower on off days).