It is generally not recommended to give your pig a multivitamin without consulting a veterinarian.
Pigs have specific dietary needs, and a multivitamin designed for humans or other animals may not contain the correct balance of nutrients for pigs.
Additionally, some vitamins can be toxic to pigs in high doses.
If you are concerned about your pig's nutritional intake, it is best to discuss it with your veterinarian. They can assess your pig's individual needs and recommend the best course of action.
A veterinarian can help you determine if your pig requires a multivitamin and, if so, which specific multivitamin is appropriate.
A veterinarian can also advise you on the proper dosage and administration of the multivitamin.