Because I've been taking it for about four days and I feel like death. Don't know if this is coincidence - maybe I've got a bug (always hard to tell the difference). But I've been taking about 3tsp/day and I'm just exhausted, particularly the last couple of days - having to lie down for hours at a stretch, am sleeping during the day (not normal for me). I would have thought it would either have helped or done nothing. For the last two days I've been dissolving it in coconut water and an electrolyte solution (following someone's recipe I saw on the 'net)..