Sure, the HCG program includes different phases like:
1. Preparatory / cleansing phase (optional) plus Loading/Gorging Phase
2. Strict 500-calorie diet phase
3. Stabilization phase
4. Maintenance phase
During the cleansing phase, you can have supplements like laxatives, apple cider vinegar, digestive enzymes, Yerba-mate tea, and other oils that helps at cleansing the system. While, in the remaining phases you are recommended to have lots of vitamins in your diet (vitamin A, B, C, D, E, K) along with high levels of magnesium.