Can B12 be taken with other vitamins?
Vitamin C and B12
It's not advised to take vitamin C and vitamin B-12 at the same time, says Litt. That's because high doses of vitamin C can reduce the amount of vitamin B-12 that's absorbed and metabolized by the body, she says. Be sure to take vitamin C at least two hours after vitamin B-12.
Interactions between your drugs
No interactions were found between Vitamin B12 and Vitamin D3.
Take them with or without food, with one exception: You'll absorb B12 better with a meal. If you also use vitamin C, put 2 hours between them. Vitamin C can keep your body from using B12.
[1] People who regularly take medications that suppress stomach acid for conditions like gastroesophageal reflux disease (GERD) or peptic ulcer disease—such as proton-pump inhibitors, H2 blockers, or other antacids—may have difficulty absorbing vitamin B12 from food.
Yes, as B vitamins and magnesium don't compete for absorption inside your body. Indeed, many supplements combine them as a way of simplifying how you monitor your intake. Vitamin B and magnesium work in tandem to: promote normal function of the nervous system and normal psychological function.
Vitamin B12
As a general rule of thumb, take your B vitamins in the morning or with a meal. Vitamin B12, for example, should definitely be taken in the morning. This is because it is important for energy metabolism, which may interrupt your sleep if taken at night.
Interactions between your drugs
No interactions were found between Vitamin B12 and Zinc.
You can—but it's probably not a good idea. For some supplements, optimal absorption can depend on the time of day taken. Not only that—taking certain vitamins, minerals, or other supplements together can also reduce absorption and may result in adverse interactions, which can be harmful to your health.
It's usually best to take the tablets on an empty stomach. This means at least 2 hours after a meal or snack and at least 30 minutes before you eat again.
Vitamin C supplements can break down vitamin B-12 in your digestive tract, according to MedLinePlus. As a result, consuming supplements at the same time as meals that contain vitamin B-12 reduces B-12 absorption. Make sure you wait at least 2 hours after a meal before taking your vitamin C supplements.
Can I take B-12 on an empty stomach?
Vitamin C and vitamin B12 are water-soluble vitamins, which means you need water to absorb them. “Take water-soluble vitamins on an empty stomach with a glass of water,” recommends Dr. Perez-Gallardo.
Diet. Some people can develop a vitamin B12 deficiency as a result of not getting enough vitamin B12 from their diet. A diet that includes meat, fish and dairy products usually provides enough vitamin B12, but people who do not regularly eat these foods can become deficient.

Lack of vitamin B12 in your diet: People who don't eat enough foods that naturally have vitamin B12 or don't eat foods fortified with vitamin B12 can develop vitamin B12 deficiency. Gastritis: Gastritis is inflammation of the stomach lining, and it's a common cause of vitamin B12 deficiency.
Your intestines absorb vitamin B12 from food. A protein your stomach makes called “intrinsic factor” helps your body absorb it.
- Beclomethasone.
- Budesonide.
- Dexamethasone.
- Fluticasone.
- Hydrocortisone.
- Methylprednisolone.
- Mometasone Furoate.
- Prednisone.
No interactions were found between Calcium, Magnesium and Zinc and Vitamin B12. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.
No interactions were found between magnesium citrate and Vitamin B12.
- Conditions such as celiac disease, chronic pancreatitis, Crohn's disease, and cystic fibrosis. ...
- BMI (body mass index) higher than 30. ...
- Liver or kidney disease. ...
- Radiation treatment. ...
- Weight loss surgery.
Tip. You're unlikely to have ill effects from taking both multivitamins and B complex together, other than making expensive urine, since excess B vitamins are excreted. However, interaction with certain medications or some medical conditions may cause B vitamin overdose symptoms.
B12 also works with other B vitamins to improve certain functions. For instance, B12 and B9 (folate) together help to make red blood cells. B12, B6, and B9 team up to control blood levels of the amino acid homocysteine, high levels of which have been associated with possible heart disease.
Can you mix vitamin B12 and zinc?
Interactions between your drugs
No interactions were found between Vitamin B12 and Zinc.
Vitamin B12 occurs in foods that come from animals. Normally, vitamin B12 is readily absorbed in the last part of the small intestine (ileum), which leads to the large intestine. However, to be absorbed, the vitamin must combine with intrinsic factor, a protein produced in the stomach.
Vitamin B12
As a general rule of thumb, take your B vitamins in the morning or with a meal. Vitamin B12, for example, should definitely be taken in the morning. This is because it is important for energy metabolism, which may interrupt your sleep if taken at night.
- Beef, liver, and chicken.
- Fish and shellfish such as trout, salmon, tuna fish, and clams.
- Fortified breakfast cereal.
- Low-fat milk, yogurt, and cheese.
- Eggs.