### Human:\nwhat should i do if i suspect an overdose of vitamin d?\n\n### Assistant: if overdose is suspected contact your local poison control center or emergency room immediately. us residents should call the us national poison hotline at 1-800-222-1222. canada residents should call a provincial poison control center. symptoms of overdose may include: weakness headache loss of appetite nausea/vomiting increased urination increased thirst.