As suggested there may be other avenues less direct in which carbs may heip the plant. There may not be. Drawing a conclusion on one concept is a downfall on the advancement of any science. Ignoring the testimony of experience is foolish. True, many practices are perpetuated by superstition. Modern medicines have come from witch doctors as well. Science can only explain reality. It can't explain it away. At the very least it provides a few trace elements. Like anything overuse will cause problems. It is not an over priced feed my weed product.The bottom line is I'm getting to like the taste of it. Plants get a sip, I get a sip. I'm just careful not to drink too much. I won't go back to that though.