Top
20
Doctor insights on: How Much Vitamin A Is Safe To Take

Share
1

1
How safe is it to take a vitamin a supplement?

How safe is it to take a vitamin a supplement?

Vitamin A: Vitamin a supplements are usually safe. Excessive vitamin a theoretically can affect/hurt your liver. Patients with retinitis pigmentosa take mega-doses of vit a often without side effect. The best way to get your vitamins is through a natural, green leafy veggie diet. ...Read more

See 1 more doctor answer
Dr. Lourdes Margarita Landron-Garcia
431 doctors shared insights

Vitamin A (Definition)

Vitamin A helps form and maintain healthy teeth, skeletal and soft tissue, mucous membranes, and skin. It is also known as retinol because it produces the pigments in the retina of the eye. Vitamin A promotes good vision, especially in low light. It may also be needed ...Read more


2

2
How much vitamin B6 is it safe to take?

How much vitamin B6 is it safe to take?

100 mg/day for adult: Chronic administration of 1–6 g oral pyridoxine (vitamin b6) per day for 12–40 months can cause severe and progressive sensory neuropathy characterized by ataxia (loss of control of bodily movements). Nevertheless, an upper limit of 100 mg/day for adults is considered safe. ...Read more

See 1 more doctor answer
3

3
How much garlic is safe for one to take a day?

How much garlic is safe for one to take a day?

No limits: I believe as this is food you can take as much you want or as much your stomach can take in. But watch of your family and friends they would not like the smell of your breath! ...Read more

4

4
How important is it to take a daily multivitamin? Is it really required? Thanks.

How important is it to take a daily multivitamin? Is it really required? Thanks.

Not very. No.: Unless you have a know deficiency in all the vitamins in a multivitamin or have a very restricted diet, multivitamins are not necessary and can cause medical problems. If you have a specific known deficiency, then take that specific vitamin. Otherwise, save your money for more gym time, which would be better for your health. ...Read more

See 3 more doctor answers
5

5
How safe is it to take a zinc supplement? Anything I should take into consideration?

How safe is it to take a zinc supplement? Anything I should take into consideration?

Fairly safe: Zinc is fairly safe, but rarely needed as almost no one without severe kidney disease, surgery, cancer, malnutrition, is ever zinc deficient. Recommended intake varies as age increases, up to a maximum of 15-20 mg for adults. ...Read more

6

6
How long is it safe to take phenteine to lose weight? An is it safe to take while taking syntthroid?

How long is it safe to take phenteine to lose weight?  An is it safe to take while taking syntthroid?

Yes and no!: Fda approved, it can have side-effects: tachycardia, arrthymias, and an increase in blood pressure. The problem with phenetermine is that it usually will deliver a 10-15 lb weight loss and it's effects diminish and do not continue. It works by both suppresing appetite and increasing metabolism. If your thyroid dose is correct, shouldn't pose an issue. If high, serious problems could arise! diet! ...Read more

See 1 more doctor answer
7

7
How long is it supposed to it take for vitamin d (prescription) to work?

How long is it supposed to it take for vitamin d (prescription) to work?

~3 mo, Maybe Never?: Work by what criteria? Over last few years, my experience with people who have chosen vit d3 rx (written by myself), have essentially always being given vit d2 50k iu pills by pharmacies (despite this substitution being illegal). A large minority of people do not convert d to d2 or d2 to d3 well. I have seen the quest lab d3 conc. Either not improve or even go down in people saying they took rx. ...Read more

8

8
How long is it safe to take glucosamine sulfate?

How long is it safe to take glucosamine sulfate?

Long term.: As far as we know, the combination of glucosamine and chondroitin is safe to use in the long term. Studies had people taking it for at least two years. ...Read more

See 2 more doctor answers
9

9
How much vitamin d should you take in a day? Is it possibel to overdose?

How much vitamin d should you take in a day? Is it possibel to overdose?

Vitamin D: Depends on many factors e.g. Age, amount of skin exposed to sun rays daily, use of sun blockers, time of day that skin is exposed, race, location, and other factors. The best source of vitamin d is that which your body makes from exposure of the naked skin to the sun rays. If this is not optimal then vit. D supplementation is necessary. Keep the blood level above 40 but below 90 for safety. ...Read more

See 3 more doctor answers
11

11
Is it possible u can take to much vitamins?

Is it possible u can take to much vitamins?

Sometimes: Certain vitamins are not easily cleared from the body, such as vitamins a, e, d and k. Therefore if one takes high enough doses of these vitamins, one could experience toxicity. However, the recommended doses for vitamin d appear to be much higher than previously thought. ...Read more

12

12
Is melatonin safe and how much can I take?

Is melatonin safe and how much can I take?

Commonly used: Many people have reported response with dosage up to 3mg per day. ...Read more

14

14
How long is it supposed to it take for nutri adrenal extra tablets to work?

How long is it supposed to it take for nutri adrenal extra tablets to work?

Hormone replacement: Its never a good idea to take a hormone as a supplement unless there is a deficiency. Even in some hormone deficiencies, the drawbacks to replacement outweigh the benefits. While there is some limited evidence that dhea replacement can help specific groups (people with addison's disease for example), adrenal supplements do not have proof that they work at all. ...Read more

15

15
How long does it take for a vitamin to work?

How long does it take for a vitamin to work?

Vitamins: This is very difficult to answer because you do not specify what vitamin and what you need the vitamin to do for you. If you have a true vitamin deficiency, it should be corrected within a month or even sooner with daily dosing. ...Read more

16

16
Is it safe to take a lot of children's vitamins?

Is it safe to take a lot of children's vitamins?

No: It is never safe to overdose anything.Even high vitamin doses may have serious, dangerous side effects. ...Read more

17

17
Is it safe to take vitamin with alcohol?

Is it safe to take vitamin with alcohol?

You can, but: Taking with water alone is much better. To check on vitamin labels so that you can select reasonably good ones, you can see: http://www.Multivitaminguide.Org/. ...Read more

18

18
How long is it supposed to it take for fish oil to take affect for depression?

How long is it supposed to it take for fish oil to take affect for depression?

Fish oil: It is an adjunctive treatment. Thus, don't expect to see any abrupt changes in condition if you are using it. However, it is beneficial. ...Read more

19

19
How much is too much melatonin to take for a trip?

Melatonin: Since there is no established dose for melatonin, it is recommended to start low (0.3 mg) & work up to 5 mg, taken usually 30 - 60 minutes before bedtime. Potential side effects are nausea/vomiting, headache, irritability. If morning drowsiness occurs, reduce dose or take earlier before bedtime. Choose reliable manufacturer since ingredient quality may vary (not regulated by govt). ...Read more

See 1 more doctor answer
20

20
How long is it safe to take statins?

Statins: At the present time we have no time limit to statin length of therapy. Some recent studies suggest there may be glucose intolerance associated with long term statin use but we don't know if this is significant. As long as no serious side effects in the individual patient, it appears they are long term safe. If significant side effects, we stop the agent. ...Read more

See 1 more doctor answer