What vitamins should you not take?

The Top Five Vitamins You Should Not Take
  • Vitamin C. Perhaps the most popular single vitamin supplement, vitamin C occurs in plentiful amounts in many fresh fruits and vegetables. ...
  • Vitamin A and beta carotene. ...
  • Vitamin E. ...
  • Vitamin B6. ...
  • Multi-vitamins.
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What vitamins are you not supposed to take together?

Large doses of minerals can compete with each other to be absorbed. Don't use calcium, zinc, or magnesium supplements at the same time. Also, these three minerals are easier on your tummy when you take them with food, so if your doctor recommends them, have them at different meals or snacks.
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Which vitamins are harmful to your body?

High doses of vitamin supplements are unsafe
  • Vitamins A, D, E and K are fat soluble, which means they are stored in the body and if taken in high doses can be toxic.
  • High doses of some water-soluble vitamins, such as vitamin B6, can also become toxic.
  • Large folate intakes can hide vitamin B12 deficiencies.
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Which two vitamins pose the greatest risk of toxicity?

Extra amounts of water-soluble vitamins are typically excreted. The fat-soluble vitamins A and D are the most likely to cause toxicity symptoms if you consume them in high amounts.
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Can I take 5 different vitamins at once?

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.
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Should you take vitamins?



Can I take all my vitamins at once?

Combining supplements will not normally interfere with the way they work and in some cases may be beneficial, for example vitamin C helps iron absorption. However, certain supplements may interact with each other.
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Can I take vitamin D and B12 together?

Interactions between your drugs

No interactions were found between Vitamin B12 and Vitamin D3.
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Why can't I take vitamin C and B12 together?

Vitamin C may destroy vitamin B12 (avoid large doses of vitamin C within one hour of taking oral vitamin B12). All B vitamins act synergistically and excess levels of one may lead to imbalance or deficiency in others. It is advisable to take B vitamins as a complex rather than as single substance supplements.
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Can I take vitamin D and vitamin C together?

Vitamin C and vitamin D are found together in many multivitamins, so taking them together should not be a problem for most people. However, if you're at risk for kidney stones, consult your doctor before taking supplements.
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Can vitamin B and D be taken together?

It's safe to consume vitamin D and the B complex together as a supplement or through food sources. However, if you're on medications or have a medical condition, consult your doctor about any drug interactions before taking supplements.
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Which vitamins work best together?

Here are 3 supplement combinations that should always be taken...
  1. Magnesium and vitamin D3. Magnesium and vitamin D3 supplements can be taken together to ensure that the body functions adequately. ...
  2. Omega 3 and vitamin E. ...
  3. Magnesium and zinc.
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Can I take B12 everyday?

Safety and side effects. When taken at appropriate doses, vitamin B-12 supplements are generally considered safe. While the recommended daily amount of vitamin B-12 for adults is 2.4 micrograms, higher doses have been found to be safe. Your body absorbs only as much as it needs, and any excess passes through your urine ...
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Does B12 affect the thyroid?

Regardless, research has indicated that a vitamin B12 deficiency can negatively affect those living with hypothyroidism, and that both deficiencies can go unnoticed if the proper tests are not performed.
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What blocks the absorption of vitamin D?

Some factors that may reduce or block its absorption include: Conditions such as celiac disease, chronic pancreatitis, Crohn's disease, and cystic fibrosis. These can all affect the intestines, preventing them from absorbing vitamin D found in food.
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Can I take vitamin C and b12 together?

Vitamin C with vitamin B-12

Vitamin B-12 helps maintain your nervous system and form red blood cells. Studies show that taking these two supplements at the same time may reduce the amount of vitamin B-12 that you receive. So, experts recommend taking these supplements at least two hours apart.
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What is zinc good for?

Zinc, a nutrient found throughout your body, helps your immune system and metabolism function. Zinc is also important to wound healing and your sense of taste and smell. With a varied diet, your body usually gets enough zinc. Food sources of zinc include chicken, red meat and fortified breakfast cereals.
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Is it OK to take vitamin C and zinc together?

Vitamin C helps your body absorb iron and generally does not interfere or compete with other vitamins, so unlike taking calcium and magnesium — which compete with each other for absorption — you can safely combine vitamin C and zinc.
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Is Magnesium good for thyroid?

Magnesium supplementation showed a beneficial effect on thyroid economy leading to a normalization of TSH levels.
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Can vitamin D cause thyroid problems?

Low levels of vitamin D have also been associated with thyroid disease, such as Hashimoto's thyroiditis. Similarly, patients with new-onset Graves' disease were found to have decreased 25-hydroxyvitamin D concentrations. Impaired vitamin D signaling has been reported to encourage thyroid tumorigenesis.
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Can vitamin D affect thyroid levels?

Importantly, both vitamin D and thyroid hormone bind to similar receptors called steroid hormone receptors. A different gene in the Vitamin D receptor was shown to predispose people to autoimmune thyroid disease including Graves' disease and Hashimoto's thyroiditis.
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What medications should not be taken with B12?

Certain medications can decrease the absorption of vitamin B12, including: colchicine, metformin, extended-release potassium products, antibiotics (such as gentamicin, neomycin, tobramycin), anti-seizure medications (such as phenobarbital, phenytoin, primidone), medications to treat heartburn (such as H2 blockers ...
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Is it OK to take B complex everyday?

Since B vitamins are water-soluble, it's unlikely that you will consume too much of these nutrients through food or by taking a B-complex supplement as directed. However, taking supplements that contain excessively high and unnecessary quantities of B vitamins could lead to serious side effects.
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Is it OK to take 1000 mcg of B12 a day?

What is the dosage for cyanocobalamin tablets? The recommended dose for treating vitamin B12 deficiency is 1000 mcg daily. The recommended dose for preventing vitamin B12 deficiency is 1500 mg or 2500 mcg (sublingual tablets) daily.
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Can I take vitamin D at night?

The most important steps are to fit vitamin D into your routine and take it consistently to ensure maximum effectiveness. Try taking it alongside breakfast or with a bedtime snack — as long as it doesn't interfere with your sleep.
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Who should not take a magnesium supplement?

People with diabetes, intestinal disease, heart disease or kidney disease should not take magnesium before speaking with their health care provider. Overdose. Signs of a magnesium overdose can include nausea, diarrhea, low blood pressure, muscle weakness, and fatigue. At very high doses, magnesium can be fatal.
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