While reading up on spirulina and chlorella yesterday - I read something pretty interesting which supported my thoughts on the low quality of the Vitamin Shoppe (VS) brand chlorella.
The article compared two types of chlorella - Chlorella with fillers and chlorella reported to be as pure as possible. A magnified picture of the chlorella stated to be of a lesser quality had tiny light colored specks, which the article identified as fillers. The magnified picture of the chlorella stated to be of a purer quality was a solid dark colored green, similar to Source Natural yaeyama powered chlorella. The picture of the chlorella with the specks looks EXACTLY like the Vitamin Shoppe brand chlorella!!! This is what is listed on the VS bottle as Other Ingredients: Maltodextrin, croscarmellose sodium, sodium starch glycolate, stearic acid, pharmaceutical glaze, silicon dioxide, magnesium stearate.