A good friend of mine is a specialist in weight loss for bodybuilding, fighters, etc. this is something he sent me. Ask questions for what you do not understand and be very serious and meticulous about your intake... here goes
one of the best ways to really shed some pounds would be with water manipulation. It works best for dudes 10lbs above weight or so.
he would have to cut his carbs but up everything else such as his fats and proteins but more so the proteins.
make sure he's still burning tons of calories, that's key
the carbs act like a sponge and soak up alot of his water so in a cutting phase, the body will fight to keep everyhting so no starchy breads, grains, and NO fruits especially. those fill your glycogen stores the quickest.
This is only needed to be performed about 5-6 days out. You'll want him to cut out alot of his sodium too. Not too hard if he's eating clean, not extra spices or salts.
Here's what a sample week would look like if he were to have his weigh in on sat:
mon - friday up till noon- 50 g or less carbs/day total (breakfast should have the most) lean proteins and healthy fats through the day. Have him drink 3 - 6 gallons of distilled water - he should be peeing every 30 mins. This is harder than it sounds, make sure he's carrying around a water jug everywhere.
friday at noon - CUT OUT ALL water intake until after his weight in- he'll still be peeing like crazy or should be - now AFTER ALL WATER intake has been cut out, you can slowly have him start eating starchy carbs in each meal - spread them out throughout the day
i would be checking his weight everyday to see how he's dropping. It's different with everyone - you should see about 1.5 up to 3 lbs per day lost.
hope this helps bro
***the worst thing he can do is drink any water after friday at noon. that water will stick to him like a fly on shit.