@mynameishephzibah Personally I found the LOQ's chosen to be fairly arbitrary. For example, they've chosen a general value of 0.025mg/kg as the LOQ for heavy metals. But every agency in the world, has different LOQ levels for the different heavy metals. Cd, Pb etc all have different levels.
Also, I found the mg/kg to be a bad example.
A better way to do this would've been to have a per serving heavy metals level.
This way, we can compare it to the permissible levels of consumption / day limits. Because the levels in a Kg bag aren't really relevant, depending on if a person is consuming 1 serving / day, or 3 servings per day.
So, for example, according to the WHO, permissible amounts of lead are 0.05 mg/(kg x bodyweight of person) per week.
So if we look at an average 65 kg person - that would be 3.5 mg / week.
According to the study, there was about 0.29 mg found in a KG of ON whey. Lets say, this is an enthusiastic person consuming 3 servings of whey per day - that translates to about 0.029 mg of lead exposure / week.
That is still 100 times lower than the amount suggested as limits by the WHO.
You see where I'm going with this. This isn't really worth getting alarmed by. It is a shitty testing process.