The Science Of B12

Clues in this puzzle

Across

• An aquatic animal that is a rich source of B12 (4)
• The feeling of exhaustion linked to low B12 (7)
• A common dietary source of B12 for many people (4)

Down

• A B-vitamin that works closely with B12 (6)
• What you might lack if your B12 levels are too low (6)
• The collection of foods you eat that determines your B12 intake (4)

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