Surprisingly, not a single one of dozens of studies adding an average of hundreds of calories of nuts a day for fifteen weeks to people’s diets resulted in significant weight gain.6768 However, there is a limit. Do not regularly eat more than a cup of nuts a day for the same reason we should avoid consuming multiple cups of spinach, beet greens, or Swiss chard, more than a few starfruits,6769 multiple cups of rhubarb,6770 or even spoonsful of chaga mushroom powder6771 a day: oxalates.
