Truth Out has the article Monsanto’s Herbicide Linked to Fatal Kidney Disease Epidemic: Could It Topple the Company?

Monsanto’s herbicide Roundup has been linked to a mysterious fatal kidney disease epidemic that has appeared in Central America, Sri Lanka and India.
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At this point, this elegant theory advanced by Dr. Jayasumana and colleagues can only be considered hypothesis-generating. Further scientific studies will need to confirm the hypothesis that CKDu is indeed due to glyphosate-heavy metal toxicity to the kidney tubules. For the present, this may be the best explanation for the epidemic.
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Glyphosate-resistant seeds are engineered to allow the farmer to drench his fields in the herbicide to kill off all of the weeds. The glyphosate resistant crop can then be harvested. But if the combination of glyphosate and the heavy metals found in the groundwater or the soil destroys the farmer’s kidneys in the process, the whole house of cards falls apart. This may be what is happening now.

I wouldn’t worry about this.  The connection hasn’t been proven yet, and we are talking about an unimportant organ, your kidneys.  (Although the word fatal might have grabbed your attention.) So it seems like a small risk to take to keep your weeds under control.  See that he-man in the television ads; he isn’t doubled over with pain from his kidneys, so why worry?

Warning: Sarcasm in the above paragraph, in case you didn’t notice it.