woman adding L-Drink to water in the ProLon drink bottle

Why is there glycerine in the L-Drink in ProLon?

Glycerol is the pure form of glycerine. Glycerol is a simplified form of food. It also has mildly antibacterial and antiviral properties.

The glycerol in the ProLon L-Drink is made from organic vegetable material. (Soy beans, we think, but we’re not sure.)

There are three reasons why it’s a key part of the ProLon diet.

  1. When you’re in the fasting mode, glycerol helps to protect amino acids (which preserves your lean body mass).
  2. Of course it also helps you keep hydrated.
  3. From the instructions you learn that the amount of L-Drink you consume depends on your body weight. That way, smaller people get less total energy and bigger people get more total energy.

By combining the food with the L-Drink, each person should receive exactly the amount of energy (not too much and not too little) to keep them in the fasting mimicking state.

You only need the L-Drink on days 2–5 because on day 1 there is more energy provided in the dried food.


Some of the L-Drinks in boxes of ProLon sold in Australia still haven’t got the Australian measurements on them.

This might seem obvious, but…

If on the side of the bottle the measurements are in pounds (lb) then make sure you convert your weight in kg to lb. You can do this by typing it into Google.

Or just click here.

Or if you like maths, just multiply your weight in kilograms by 2.2