One of the most crucial elements of the human diet, according to experts, is meat products. The world's output of meat products is rising, which is related to both rising levels of consumption in rich and emerging nations as well as an expanding worldwide population
No radon is expected in canned meat, unless, it contains radium. Do you have documentation of radon measured in canned meat?
IAEA Safety Reports series.
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Ingestion exposure occurs when radionuclides in the environment enter food chains.(Radio-toxicity of radon in food ):
Uranium daughters (Rn-222) a major health risk (once ingested) carcinogenic and highly toxic,When human are ingested radon progenies undergoes radioactive decay are transported to lung and causes changes to DNA structures.
Your welcome , the best answer is that of the IAEA when we talk about radiation protection.