Vitamin Side Effects: A Comprehensive Overview

| Vitamin | Possible Side Effects |

|---|---|

| Vitamin A | Nausea, vomiting, headache, dry skin, hair loss, liver damage (in high doses) |

| Vitamin D | Nausea, vomiting, constipation, kidney stones, weakness (in high doses) |

| Vitamin E | Headache, nausea, diarrhea, fatigue, muscle weakness (in high doses) |

| Vitamin K | Nausea, vomiting, diarrhea, rash, bruising (in high doses) |

| Vitamin C | Nausea, vomiting, diarrhea, kidney stones, skin rash (in high doses) |

| Thiamin (Vitamin B1) | Nausea, vomiting, diarrhea, headache, fatigue, muscle weakness (in high doses) |

| Riboflavin (Vitamin B2) | Nausea, vomiting, diarrhea, headache, rash, yellow urine (in high doses) |

| Niacin (Vitamin B3) | Nausea, vomiting, diarrhea, headache, rash, flushing of the skin (in high doses) |

| Pantothenic Acid (Vitamin B5) | Nausea, vomiting, diarrhea, stomach cramps, headache (in high doses) |

| Vitamin B6 | Nausea, vomiting, diarrhea, nerve damage (in high doses) |

| Biotin (Vitamin B7) | Nausea, vomiting, diarrhea, skin rash, acne (in high doses) |

| Folate (Vitamin B9) | Nausea, vomiting, diarrhea, headache, skin rash (in high doses) |

| Vitamin B12 | Nausea, vomiting, diarrhea, headache, fatigue, muscle weakness (in high doses) |