First of all DRINK WATER!!! Pure water will fill you up and allow you to eliminate toxins through urine,bowel movements and sweat. Try reducing the number of drinks as you progress through the cleanse. However since you are a big person a couple of extra drinks won't hurt you, just don't overdo it...and drink more water.

Everyone is different in how much lemonade they drink. I read somewhere where there's a ratio to body weight of how much lemonade you should intake. I'm not sure if it's in the book. Anyway it's really important to also drink water.

I've done 26 cleanses and when I first started all I drank was the lemonade. Now I drink more water than lemonade, but that's just me.

Good luck on your cleanse!

One thing, here's the excerpt from the book:

HOW MUCH DOES ONE DRINK?

Take from six to twelve glasses of the lemonade daily during the waking period. As you get hungry just
have another glass of lemonade. NO OTHER FOOD SHOULD BE TAKEN DURING THE FULL PERIOD OF THE DIET. As this is a complete balance of minerals and vitamins, one does not suffer the pangs of hunger. Do not use vitamin pills.

All solid food is turned into a liquid state before the blood can carry it to the cells. The lemonade is
already a food in liquid form.

For those who are overweight, less maple syrup may be taken. For those underweight, more maple syrup may be taken. For those who are underweight and worried about losing more weight, REMEMBER, the only things you can possible lose are mucus; waste, and disease. Healthy tissue will not be eliminated. Many people who need to gain weight actually do so near the end of the diet period.
Never vary the amount of lemon juice per glass. About six glasses of lemonade a day is enough for those wishing to reduce. Extra water may be taken as desired.