I believe they say kelp is a dynamic accumulator and is full of sodium and other heavy metals. Shit it collects from the ocean. But I also believe it's one if the fastest growing plants in the world and is chock full of natural growth hormone and nutrients. It's a key ingredient in a lot of home grow consumer level soil mixes.
It seems like these legal cannabis markets undergo ridiculous testing and are held to ridiculous standards that even the food industry isnt held to. You can have all this copper iron zinc aluminum in tomatos or what the fuck ever, but a small percentage isnt allowed in legal cannabis? They're allowed to have so many bugs or rodent shit per can of soup, which is fucked up, but a small amount of naturally occurring metals and minerals arent allowed in weed.
I totally agree