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Probably insufficient
Yes, because that's all about bioavailable molybdenum, usually in the form of molybdates. The solid lubricant molybdenum (IV) sulphide is quite stable, and insoluble in water, making it hard for the molybdenum to have any biological interaction. Oxidation of fine powder does occur in ambient air, forming bioavailable Mo(V,VI) species, but also necessarily inorganic sulphate which mitigates the potential harm.
If I have to choose something to lose off my chain into the environment, I'll take MoS2 over micro-divided PTFE any day.
gbj_tester
Probably insufficient but https://www.nrc.gov/docs/ML1521/ML15212A086.pdf