The recommendations above are good. One thing I will say about fruit is some people do fine on fruit juice but bad on solid fruit ( because of the pectin and other fibers ). Some just can't do any Sugar at all so go slow.
The best "detoxes" happen to be the cheapest.
- Food grade hydrogen peroxide drops
- urine therapy
- Pure gum spirits of Turpentine + suagr ( works like a fly trap )
- distilled water
These therapies are free or just pennies per day. If you can't access diamond g Turpentine ( the best brand I've found ), 100% pure kerosene with no additives works the same way ( very small doses ).