In-Vitro Meat
Plant extracts are used as the basic medium, then supplemented with specific factors such as hormones and growth factors, fatty acids and lipids, and vitamins and trace elements.
Pros
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Chemically defined and controlled conditions
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Reduce variability in composition
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Reduce possibility of infectious agents
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Devoid of animal sources
Cons
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May cause allergic reactions for some consumers

This medium is the current gold standard. It is collected by removing the reproductive tract of a slaughtered pregnant cow and collecting blood from the heart of the fetus.
Pros
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Provides all necessary nutrients
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Rich in growth factors
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Don't need to create from scratch
Cons
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Ethical concerns with animal suffering
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High possibility of contamination
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Inconsistent supply
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Requires regular replenishing