is lighter fluid paleo?

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Because it appears that Chick fil a puts it in EVERYTHING:

Tertiary Butylhydroquinone, or TBHQ as it is more commonly referred to as, is in fact a chemical preservative which is a form of butane. It is used in foodstuffs to delay the onset of rancidness and greatly extends the storage life of foods. It's no wonder that certain fast foods and convenience foods seem to last a lifetime on the shelf these days. The FDA allows amounts of up to 0.02% of the total oils in food to be TBHQ. This may not sound like a lot, but it does tend to make one wonder why there needs to be a limit on the amount if it is apparently a 'harmless additive.' Mind you, anything which derives its origins from butane could hardly be classified as safe, no matter how small the dose. Consuming high doses (between 1 and 4 grams) of TBHQ can cause nausea, delirium, collapse, tinnitus (ringing in the ears), and vomiting. There are also suggestions that it may lead to hyperactivity in children as well as asthma, rhinitis and dermatitis. It may also further aggravate ADHD symptoms and cause restlessness. Long term, high doses of TBHQ in laboratory animals have shown a tendency for them to develop cancerous precursors in their stomachs, as well as cause DNA damage to them. It is also suggested that it may be responsible for affecting estrogen levels in women.