http://www.inchem.org/documents/jecfa/jecmono/v05je09.htm

Here above is the reference where I found the following:
Estimate of acceptable daily intake of formic acid for man: 0-3mg/kg
If my weight is 100 kilos I could intake 300 mg of formic acid every day,
Natural content of honey is 85 mg/kg and after spring treatment, the residue
goes up to close to 300 mg/kg. When I wrote that 300mg/kg is far from the
acceptable daily intake limit, I meant that nobody eats 1 kg of honey a day.
My point is that treatment with formic acid will not constitute a toxic
danger for human consumption.
It is also mentionned in the above reference, that a daily consumption of
2000 to 4000mg in short term would not cause any intoxication symptoms in
man.

Docteur André Simoneau
Médecin vétérinaire régional
Montréal-Laval-Lanaudière
MAPAQ-CQIASA
Laboratoire de pathologie animale
867, boulevard L'Ange-Gardien
L'Assomption, Québec
Canada   J5W 4M9
Téléphone: 450-589-5745 poste 275
Télécopie:  450-589-0648

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