okay so i just did some research about it and ill give a little quote from wiki about PG
The acute oral toxicity of propylene glycol is very low, and large quantities are required to cause perceptible health damage in humans; propylene glycol is metabolized in the human body into
pyruvic acid (a normal part of the glucose-metabolism process, readily converted to energy),
acetic acid (handled by ethanol-metabolism),
lactic acid (a normal acid generally abundant during digestion),
[19] and
propionaldehyde (a potentially hazardous substance).
[20][21][22]
Serious toxicity generally occurs at plasma concentrations over 4 g/L in, which requires extremely high intake over a relatively short period of time, or when used as a vehicle for drugs or vitamins given intravenously or orally.
[23] It would be nearly impossible to reach toxic levels by consuming foods or supplements, which contain at most 1 g/kg of PG, except for alcoholic beverages which are allowed 5 percent = 50g/kg.
[24] Cases of propylene glycol poisoning are usually related to either inappropriate intravenous administration or accidental ingestion of large quantities by children.
[25] The potential for long-term oral toxicity is also low. In one study, in 1972, 12 rats were provided with feed containing as much as 5% PG over a period of 104 weeks and they showed no apparent ill effects; no data on offspring was offered.
[26] Because of its low chronic oral toxicity, propylene glycol was classified by the U. S.
Food and Drug Administration as "
generally recognized as safe" (GRAS) for use as a direct
food additive, including frozen foods such as
ice cream and
frozen desserts.
[27][28] The GRAS designation is specific to its use in food, and does not apply to other uses.
[29]
with all that being said I feel since there is lactose intolerance within my family I being better than my family at not needing lactaids and what have you i have noticed that i may be starting to develop a weakness to not being able to break down the lactose in dairy products since we mostly only have lactaid milk in the house which still tastes the same as milk but now that i have done that i feel like i have weakened myself to it and therefore get the irritation from the juice or it could be from the sugars itself there is also diabetes in the family not in my immediate family but my aunt on my father's side maybe i have some thing going on inside me which i do not know of
