B12 Vitamins

Updated on August 24, 2012
L.M. asks from Conneaut, OH
10 answers

I think this is related but not sure so i thought i would ask, I've been taking some B12 supplements ( under the tongue) when i'm feeling not so perky, to help increase my energy. ( and as the bottle says circulation) I get worn down before my periods but whenI the take the b12 i get super heavy periods.
Is this all lin my head? or should i not take it during my period? what's the deal?

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So What Happened?

It might be just a placebo, but i do feel like- ok this will keep me going, I'm sure my diet is awful, very little veggies and No fruit. I've thought about trying hynosis to get over my aversion to fruit but yuck to me that feels like tring to get over an aversion to eating cat poop. I have issues i know!

my aunt gave me these , i think just from walmart.

Featured Answers


answers from Dallas on

I think for most people, it is better to take b complex rather than just one part of it. Anyone who eats "white" foods needs to supplement.

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answers from New York on

I take B12 injections, a prescription from my doctor. I have a B12 deficiency due to celiac disease. When my B12 levels are low, I get extremely tired. My periods are not affected by the B12 injections.

B12 supplements should not cause you to have heavier periods. Maybe the coincidence is that you are extra tired when your period is heavy because you are loosing more blood, so you feel more tired and you take a B12 supplement to decrease the fatigue and your period would have been heavy whether you took the supplement or not. ( Due to the shedding of the uterus you start loosing blood before your period arrives)

B12 helps form and regulate the production of red blood cells, particulary the hemoglobin the oxygen carrying component of the red blood cell. This is why you feel tired when you are deficient in the B12.

2 moms found this helpful


answers from Miami on

i apologize for a response when i dont have an answer, but i gotta ask: does the b12 really work for energy?? And if so, where do you buy it? Just a regular pharmacy?


answers from Pittsburgh on

I'm no expert, but I am diabetic and with the meds I take my Doctor told me to take B12 along with D. I had very low D levels (weird since I do drink milk, eat cheeses & yogurt but you can't argue blood tests). And one of the meds I take does effect B12. Taking the B12 along with my meds has increased my energy levels. But honestly I think you might want to look into a good multi-vit that has all the B's in it if you don't have any medical reason to take just the B12. Best wishes.



answers from Charlotte on

I don't know about the "all in your head" part. I'll just say that you should NOT isolate the B vitamins. Make sure that along with B12 that you are taking a supplement for the rest of the B family. That's important.


Not hawking the vitamins they are selling in this link, but they are right about not isolating the B12 from the rest.




answers from Minneapolis on

I prefer a B-complex. It helps keep me alert. That being said, it really is better to start by fixing your diet first. Do you have any fruits or veggies that you like? Start by making a list. Then look into ways that you can incorporate other fruits or veggies into your life without having to eat them plain. If it is the texture that bothers you try making fruit smoothies where they are pureed before being mixed into some yogurt and honey. Veggies can be pureed and added to sauces. Check out some Cooking Light magazines from the library and try some of their recipes...lots of great flavors and use a lot of fresh ingredients.



answers from Cleveland on

I was on Rx B vitamins because my blood clots to much so Yes, B12 can thin the blood and prevent it from clotting, however I'm not sure if alone and in a normal OTC dose that it would.



answers from Chicago on

B12 can increase blood volume. You should consider talking to your doctor. You may be getting too much. B12 is one vitamin that does effect the blood clotting. My son has a bleeding disorder and this is one that he will havew to be careful and have doctor advice. Right now, they prefer that he get the vitamins as naturally as possible.


answers from Dallas on

I take b-12 and it helps. When I was pregnant ( 17 yrs ago) I had to take b-12 injections. The injections helped but it wasn't overwhelming. No magic pill or injection! I wish!!!

Yes they help with energy but add a lot of fruit and water to your diet.

I'm still sleepy all the time but my sleep time is so inconsistent. Hubby is regularly in bed earlier than everyone, up by midnight working , snoring etc.
so sleep here is sporadic.

I eat a lot of fruit and drink tons of water

Hope that helps.


answers from Boston on

All vitamins, minerals, trace elements and other nutrients work in complete interaction with each other. Taking B12 alone is useless. Taking all the B vitamins is useless. And a waste of money. All the science (and the AMA) say that you need a comprehensive supplement of over 70 ingredients. Pills are only absorbed 15-30% tops so they are usually a huge waste of money, and a lot of them cause digestion problems. There's a lot you can do but I wouldn't go into "fruit only" supplements or single family (all veggies) products. Also no pre-mixed liquids. Happy to give you more help but the imbalance is affecting your periods too so I wouldn't continue as you are.

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