As a consumer of Chlorella for years, I felt from the first months a + of vital impetus and good mood, I did not personally feel any unpleasantness at the beginning, starting gradually by 1 the 1st day, 2 the 2nd, etc… until 10.
I include it in my daily diet at a rate of 10cp per day in 5+5 (main meals) or 7+3 if I eat fish at lunch (likely to contain the most heavy metals).
I started to include it in my diet after having seen a report dedicated to it in 2009 on “arte” with the testimony of a German biologist researcher evoking its potential of chelation of heavy metals. Moreover, it is used as an “alicament” in Japanese hospitals since the 70s.