@musazi If you’re not eating veggies, please do take a multivitamin after talking with a doctor.
Don’t take too many of them though. (Stick to recommended doses of a single large spectrum vitamin, don’t double or triple up if a doctor hasn’t directed it because you can inadvertently make yourself sick.)
But if you can please consider adding vegetables from different color groups into your diet as you can. Humans evolved to eat more vegetables than meat and carbohydrates from grains.
If you make sure to have sufficient veggies and ruffage in your diet you’ll have a lot of bonuses from it, ranging from healthier skin/hair/nails, to more energy, to it being easier to poop comfortably.
Some spinach, collard greens, lettuce, tomatoes carrots yellow squash, bell peppers onions tomatoes, etc. all really make your diet just that much better for your overall physical health and your body feeling good.