weekly cycle to avoid tolerance

[shmack9]

Ive been taking GNC performance and vitality vitapacks on and off for about 2 years. I might take them for 2-3 months and then stop for 1 or 2 after so I do not grow a tolerance to them. The thing is, when I stop cold turkey I start feeling shitty about 2 weeks after. Ive heard somewhere that if you cycle herbs 5 days on and 2 days off every week you can avoid developing a tolerance. Is this true? These vitapaks contain mega men vitamins, arginine, herbs like maca and horny goat weed, saw palmetto, oat vantage, and many other herbs and powders.