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The side effects we see in clinic are generally mild: transient injection site reaction, occasional mild nausea if starting at too high a dose, infrequent headache or lightheadedness in the first week
A 3-ounce serving of beef provides approximately 2.5 mcg b12
Optimal timing enhances effectiveness while poor timing can waste a significant portion of each dose
Nausea usually eases with time at a held dose, while persistent constipation often requires separate management
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