Vitamins play essential roles in the body, aiding various functions and can be found in both plant and animal sources. The statement that "vitamins are only found in plants" is incorrect. Therefore, option D is the false statement about vitamins. ;
The statement that 'vitamins are only found in plants' is not true. Vitamins are found in both plant and animal sources, such as Vitamin B12 in animal products. Thus, the correct option is D.
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