Question

Why the insulin extracted from an animal source is not in use these days?

Answer 1

1. Allergic Reactions: Because it is a foreign protein, insulin produced from animals like pigs and cows may trigger allergic reactions or other negative reactions in certain patients.
2. Purity and Safety Concerns: Insulin derived from animals posed a risk of contamination and possible animal disease transmission, including bovine spongiform encephalopathy (mad cow disease).
3. Supply and Ethical Considerations: Insulin derived from animals was unethical and unsustainable.