I dunno what causes this,but when i take my couple of grams in the morning,about 7.30 am,i start feeling the effects late morning and sees me through the whole day,dampening down early evening. However,when i have my evening meal,we call it tea,"what's for tea?",whatever,i find the buzz begin to come on strong again and i struggle to keep awake,crashing into a deep sleep for two or three hours.This isn't without redosing atall,yet during the day it has an almost stimulant effect. If i never had anything to eat,the buzz would not return and just fade away. Haven't had any for months,may order a 50 gram tub.