How Much Vitamin D Is in Cod Liver Oil? Content by Brand and Serving?
Most cod liver oil provides about 400 IU (10 mcg) of vitamin D per teaspoon, though brands range from roughly 100 IU to over 1,000 IU per serving. The front of a cod liver oil bottle tells you little. What matters is the pair of numbers on the back: the vitamin D figure and its
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