Metabolism Juice Fast

how fast will ALOT of water, 500mg niancin (flush free), and pickle juice take to clear my system?
i want to kno how long it would take im about 5′ 6” and 120 pounds and i have a fast metabolism (i cant gain weight if i wanted to) and if pickle juice (vinegar) helps how much should i drink?
i have an infection and the doctor said clear out your whole system as fast as you can. please any input will help
24 hours
Is Vinegar a Healthy Food? #645

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