The Vitamin B12 deficiency

Vitamin B12 is only found in animal products like eggs and meat.

Low B12 is widespread in vegans. There are some cases of children whose brains failed to develop because of their vegan parents.

Later in life, the IQ is directly correlated with the amount of B12 in a person's blood. the brains of those with lower B12 is six times more likely to be shrinking.

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