It is generally believed that waxes are not digested or
absorbed from the alimentary tract in most mammals, including man.
Beeswax may be indigestible in mammals due to the structure of its
component compounds, which are not susceptible to hydrolysis by
enzymes of the alimentary tract, and due to its insolubility in
water and high melting point (62 °C - 65 °C) which prevent
dissolution at body temperature (FASEB, 1975). There are no original
research data available to support this claim.
There are reports in the literature that beeswax can be used as
the sole source of carbon by insects and microorganisms (Opdyke,
1976). This would suggest that certain amounts of ingested beeswax
could be broken down by gut microflora and then possibly absorbed.
from
BEESWAX by Dr D.L Grant
Bureau of Chemical Safety
Health and Welfare
Ottawa, Ontario, Canada
http://www.inchem.org/documents/jecfa/jecmono/v30je11.htm
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