As a consequence, physicians and scientists fear that PKU symptoms may manifest in patients who have unknowingly consumed excess phenylalanine.

Hence, the potential defense would be denied defendants who had voluntarily disabled themselves by knowingly consuming the relevant liquids or substances, while allowing a defense to those who had unknowingly consumed them.

He tested positive for metabolites of nandrolone, which he said he unknowingly consumed while taking a contaminated nutritional supplement.

In this episode Duncan had slept with Veronica after each had unknowingly consumed a drink laced with GHB.

After a review of test results and laboratory documentation, they acknowledged the positive results although they said they were unaware of the presence of cocaine in their bodies and said the drug was unknowingly consumed.

The alcohol or drugs may be knowingly or unknowingly consumed by the victim.

Organisms, such as shellfish, marine crustaceans and even fish, feed on or near these infected blooms, ingest the toxins and can be consumed unknowingly by humans.

In the 1980s, sodium bisulfite was banned from use on raw fruits and vegetables in the United States following the deaths of 13 people who unknowingly consumed produce treated with excessive amounts of the substance.

In addition to the issues mentioned above which are toxic to all people, several medicinal herbs are considered abortifacients, and if unknowingly consumed by a pregnant woman could cause miscarriage.