B-Complex Health Benefits and Side Effects

Last Modified on May 04, 2014

Among the most important nutrients for the body, B complex vitamins help the body produce energy and create red blood cells. Aside from supporting good health, these vitamins also function to treat and prevent certain health problems. A supplement that contains all eight of the B vitamins, vitamin B complex is especially important for general health and wellness.

What Is Vitamin B Complex?

Vitamin B complex is a dietary supplement that includes all of the B vitamins: B1 (thiamin), B2 (riboflavin, B3 (niacin), B5 (pantothenic acid, B6, B7 (biotin), B9 (folate) and B12. Each of the B vitamins is responsible for maintaining specific bodily functions; however, it is all together that the vitamins work most effectively.

B1 and B2 promote healthy functioning of the muscles, nerves and heart while B3 is responsible for regulating the nervous and digestive systems. Normal growth and development are dependent on vitamins B5 and B12. B6 provides immune support and aids in protein breakdown while B7 helps produce hormones. Vitamin B9 directs the production and maintenance of DNA.

Health Benefits of B Vitamins

Aside from supporting effective bodily function, vitamin B complex also supports the treatment of specific health conditions. Again, certain vitamins are important for specific conditions; however, the complex works together to establish the most effective functioning.

Specifically, B1 helps prevent kidney disease as well as reduce the risk of cataracts. B2 is used in the treatment and prevention of migraines while B3 helps lower cholesterol. Additionally, B6 protects against heart disease, relieves symptoms of PMS and eases nausea related to pregnancy. B9 and B12 are responsible for preventing several types of cancer.

Vitamin B complex is also important for treating a variety of other conditions. Many individuals take the complex to aid in the treatment of anxiety, depression, fatigue, cardiovascular disease, premenstrual syndrome and certain skin conditions.

While not everyone is in need of a B vitamin complex, common symptoms of B vitamin deficiency include tiredness, anemia, loss of appetite, depression, abdominal pain, muscle cramps, hair loss and eczema. A complex dietary supplement such as this one is effective for treating and preventing a wide range of health conditions.

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User Reviews





B-Complex Side Effects   0  0   

Posted by Mardi (Toronto, Ontario, Canada) on 08/12/2012

I think I read that it was Ted that said: It also takes weeks for the pH to be near normal after taking b complex and baking soda for a week or two. A long term taking of this can also resulted in higher urinary sugar and damaged pancreas, besides damaging the brain.

This freaks me out! I take B complex, 100 mg every day and have done so for decades! I feel that my nerves required it. I love it. Did I read right????

Posted by Mmsg
Somewhere, Europe
08/13/2012
Mardi, if it's done you good for so long, then that's your best sign that it's good for YOU. If your blood sugar would've gone up, you would have known it by now. And it's an easy thing to check.

Posted by Beverly (Phyllis, Kentucky) on 02/25/2010

[SIDE EFFECTS]  B-complex and moodiness

I have been taking a high potency b-complex 1 time a day and I have noticed I have been really irritable afterwards. Any thoughts?

Posted by Gean
Salina, Ks
09/18/2012
[SIDE EFFECTS]   Here is my experience with B-complex. I kept reading that it's good to take, and that B vitamins are water solluble so the body just gets rid of the excess, etc. , so I tried it. I took the B-50 complex. Here is what happened:

The first thing I noticed after only a couple of days, was that my hair took on a dull look - lost all its shine. Then I became very, very depressed. I also started bruising a lot easier. I was also hungry all the time, terrible food cravings. The depression worsened over a period of a week or two, until I finally said to myself, "What did I add recently?" I remembered the B-complex, and looked up dangers of B supplements. Sure enough, I read that the body can't process large amounts of certain B vitamins without having to pull all kinds of micronutrients out of your body to do it, so you end up deficient. I stopped the B-complex, and within a few days my hair is shiny and beautiful, and I am no longer depressed. Food cravings are gone.

I had given it to my 20 yr. old daughter as well, and she reported after a week or so that her arms got suddenly weak and she almost dropped her violin during orchestra practice. Then I read that excessive B vitamins will attach to your nerves and cause limb weakness. She also started bruising a lot. Needless to say she's off it too now.

Eating whole foods is the best medicine!

Posted by Lupe
Salinas, Ca
10/24/2012
hi I was wondering if your daughter git better? I took stress vitamin b complex for less than a week and I stopped becauese my hamstrings feelt tingly and I instantly knew it had to be the vitamins. My entire body feels week especialy my arms and jonts. did your daughter get nerve damage and if sh got better how did she do that and how long did it take ? thank you I would appreciate info.
Posted by Lima
Nashville, Tn
05/04/2014
[SIDE EFFECTS]   Yes when I take a certain brand high-potency vitamin B Complex I feel a lift in mood but next day big drop to point of depression. I don't remember having this problem on a different brand (probably lower potency too like B50). I would like to know too why because B vitmains are important and may be hard to get just from diet alone.
Posted by Dave
Fountain Inn, Sc
05/04/2014
386 Posts
Hello Lima,

Re Vitamin B complex intake/ your reaction.

Well, your report is vexing. The brand you take gives you a "lift" and the next day you drop into a depression. I have been taking various B complex brands for many years and never experienced ... or heard of ... what you describe. I'm now taking a liquid form of vitamins and minerals (twice daily after morning and afternoon or early evening meals) and am of the opinion that the liquid form (pungent)... is better absorbed. Also I've started taking digestive enzymes after EVERY meal.

This intake of enzymes was the result of me taking a "blood analysis test" (google " you tube microscopy blood analysis") and you'll find some youtube illustrations of how your red blood cells are functioning and what other issues are at work on the cellular level (fungus, white blood cell health, plaque level)...all quite fascinating and resulted in me believing that I needed to make some changes in my own health regimen.

Well, all that to say that given you did not have problems with other brands of B, I suspect something is wrong with the new brand you are using. If you are using a synthetic brand, or something that is not up to standard maybe on the cellular level, this may be causing the "depression" reaction. Change brands.

You ask another question; why take the B complex and can you get what you need from a good diet. There are lots of books on that subject and the Vitamin supplement issue was one I first read about 40 years ago. Depleted soils, processed foods etc., convinced me that supplements are important for optimum health.

B12   0  0   

Posted by Connie (Slc, Ut) on 10/12/2011

Hi D,

As you probably know, the whole complex of B vitamins works best when taken together. But the proportions and amounts may vary with an individual's distinct needs. B6, Folate, and B12 have a special relationship as each supports the uptake and action of the other. Some people may need to vary the amounts of individual B's to achieve a balance.

I've been looking for supplements that are supportive of B12 uptake, but I haven't found much information that is specific to this. However; there is evidence that vitamin E protects B12 from oxidation, and helps make it active in the body. Aloe Vera has been found to increase the availability of B12. Improving digestion, of course, would be the most beneficial for uptake, because B12 is the most difficult of nutrients to absorb. It requires a nearly perfect set of salivary enzymes, pancreatic enzymes, stomach acid, and a well functioning set of intestines to be able to do its good business. ( It's something of a diva that needs to be coddled. )

There are many subtances that interfere with its absorption, and these include just about every medication, certain heavy metals, nitrous oxide (an anesthetic), air pollution, etc. Pathogens and parasites compete with the body for it. This is true for all nutrients, but B12 is particularly vulnerable. If supplemented in dosages of 5000 mcg. or higher, it can antagonize potassium. If someone supplements with high dosages of potassium, it may also antagonize B12.

Some foods, such as algaes and seaweeds contain B12 analogues that do not perform the same functions as the active B12. If taken in too high a quantity, these analogues will fill too many receptors and block the uptake of active B12. But these foods are extremely nutritious and healing, so I recommend that they be taken judiciously. This is such a complex subject.... I wish it could be more simple for us.

Posted by Timh
Louisville, Usa
10/13/2011
1048 Posts
I have a long history of all the digestive problems above listed, but I have magically seemed to maintain proper B-12 levels as recorded in blood test. I supplement w/ multi b vit. As well as extra folic acid and 12. I am now using the 12 derivative or preconverted form ---methycobalamin. I also take liquid liver extract which contains nature's highest levels of iron and b-12. Eat chicken or calf liver once weekly. Liver is one of nature's most nutrition dense foods ever.

Posted by D (Sf, Ca) on 10/11/2011

Are there specific supplements or vitamins that should be included, or excluded, when taking B-12 to achieve the most benefits? Thank you.

Baker's Yeast   0  0   

Posted by Cindy (Usa) on 03/09/2014

Baker's Yeast and Brewer's Yeast: What is the difference nutritionally between these two yeast and has anyone had good results using either one? also can you use if you have candida? Thanks.

Posted by Mike62
Denver
03/11/2014
Cindy: Bakers yeast is alive and replaces candida. Bakers yeast is a good remedy for candida. Many people with thrush have had good results. Brewers yeast is dead and is used as a nutritional supplement. I take home brewed water kefir. This has 6 yeasts. Eat alkalizing foods for candida. Candida prefers acidic conditions.

Posted by Healthseeker (Usa) on 02/05/2014

Question for Bill from San Fernando or anyone with knowledge of bakers yeast being used for b vitamin value. Can it be used or will it likely aggravate candida condition? Thanks to all

Posted by Mike62
Denver
02/05/2014
Healthseeker: There are 2 good yeasts in an 80/20 ratio. Candida's function is to eat excess blood sugar. Eating cooked conventionally grown food creates a condition where the 80% yeast is not able to survive and this causes candida over growth. Toxins poison candida. In order to survive candida mutates into a pathogen. All you have to do is eat raw organic produce and raw grass fed animal products. This simultaneously nourishes and detoxes. Taking bakers yeast is beneficial because this yeast replaces candida with the 80% yeast.
Posted by Misty
Indiana, Usa
02/07/2014
25 Posts
Baker's yeast is not a good source of B vitamins. It is recommended to avoid consumption of yeast while infected with candidiasis, although inactive yeasts such as brewer's yeast or nutritional yeast can be consumed for nutritional value.

Choline   1  0   

Posted by Americantwin (Indianapolis, In) on 09/14/2012

[YEA]  Choline (often taken w/Inositol) has a noticeable effect on brain function, usually in a short time after starting it. Choline is a B vitamin but is not included in B complex supplements in large enough proportions, ( 1,000 mg ) to help mental ability. Choline is great for the liver! You will notice toxic-overload symptoms (nausea, flu-like symptoms) disappearing in a matter of weeks, also. My daughter and I have taken both for years without any noticeable adverse reactions. A chemist at Now Foods told me that Choline supplements are not made from soy (see posted reaction to soy). However, lecithin (from soy) is a source of Cholin, (sometimes spelled without the "e") as are dandelions and egg yolks. Cholin is supposed to be good for the kidneys and I'm puzzled why its properties aren't more praised among the health-minded groups. It's a supplement I would not be without. However, here are some supposed symptoms of excess: (none of which I have personally experienced)

1.) Excess increases muscle tone, causing temporary stiffness or tension

2) Excess is said to cause a fishy smell to skin

3) Choline is said to lower blood pressure

Be careful. Certain distributers try to trick you by labeling the bottle:

Choline/Inositol 500/500mg

when in fact each capsule is only 250 mg. You'll need 1000 mg daily to really tell a difference in your mental capacity, liver function, etc.

Feedback from others appreciated.

500/500 mg

General Feedback   0  0   

Posted by Marko (Ljubljana, Slovenia) on 12/09/2011

Greetings,

I eat 1-2 egg whites a day for few months. Am I at risk of developing biotin deficiency? Yours sincerely

Posted by Connie (Slc, Ut) on 12/09/2011

Hi Just Chillin ; It is difficult to balance the proportions of the B vitamins. I've also had this problem. It has helped me the most to increase B-12. Although they work in concert with each other, it seems that some of us do have to develop our own type of composition. I take a low dose B complex daily, such as a B 25, or less. And I take a sublingual lozenge of B-12, (methylcobalamin type), 5000 mcg. Daily. (sometimes I take more, to be honest).

Burning feet may be a symptom of B12 deficiency. It is the most difficult of the B's to absorb, so that could be why the symptoms persist even when one takes it in an oral form. Taking it sublingually may be easier to absorb.

Posted by Just Chillin
Vannes, France
01/03/2012
13 Posts
Hi Connie, Thank you so much for your reply. I haven't had much luck with replies before, so this is great. I had the burning feet and tingling feet/legs first, then was told I had a b1 deficiency, so had been taking that since last Feb 2011. Then I tried to reduce it and the symptoms got worse again, so re took the same amount, and was told to take b5, then tried to reduce the b1 again, and same problem.

I have been seeing someone who does allergy testing through muscles. In September when I saw her I tested strong for all of the b.s then in December I was weak again in B1, even though I had taken it the night before, and then also b6 and a slight b12. I am so confused with all this, and just want to know that I am taking the right amounts of everything. I had a blood test recently, and everything came back normal, blood sugar fine, and cholesterol fine, liver fine and kidneys etc. except for the haemotology where it was slighly low on the hemocrit, and the euphyrocytes. I queried this with the doctor, who said not to worry as my haemoglobin was ok at 12.5%. I had mentioned the vitamin deficiency also, and the burning feet, and thought that the blood would be tested for vitamins too, but it wasn't, which is typical of doctors isnt it? I am normally quite a positive person, but I am aware that the b deficiencies can cause permanent neurological problems, and don't want to go down this road. Maybe I could just insist on a vitamin and mineral test. Any more info would be wonderful, thank you so much.

Posted by Just Chillin
Vannes, France
01/14/2012
13 Posts
Hi Connie, Did mail you back but maybe you didn't see it. Just to let you know that I had a B12 & folate blood test via the doctor, and the B12 came back well above the upper limit now, so just don't know what to take. The B complex that I have been taking are all around the 50mg ish, so perhaps I should still take that, then a little bit of the1, 5, 6 and 12 as well.

I had been having an irregular heart beat at night, horrible, but just cutting the vitamins down for a day or so, and I have not had it, so perhaps I have been taking too much

I mentioned to my doctor that I had been told that I may have peripheral neuropathy, and was there any way, they could check to see if I had any nerve damage, and he just didnt buy into it at all, he said just do some more walking, I was so shocked that I couldn't think of anything else to say. I know that lots of people get the burning feet and legs for no reason, and if that is the case, then fine I have to put up with it, but still a good idea to look into it.

It's nice know of someone who has had similar problems, makes you feel better, any further help would be good,

Thanks a lot

Posted by Maria
Gippsland, Vic, Australia
01/25/2012
159 Posts
Hi Just Chillin from Vannes, Your Dr should have looked at your feet and used a monofilament to test for lose of any sensation or at the very least used either a cotton wool ball or their own finger. The following is a site with pictures of these: http://sydney.edu.au/medicine/diabetes/foot/Fexam1.html

If you do a search for alpha lipoic acid you will find lots of recommendations for it. http://www.diabeteslibrary.org/PrintArticle.aspx?ArticleID=809

When ever you take large doses of any b vitamin it is best to also take a b complex as well. If your not a vegetarian then you could eat liver or take a liver extract as Bill (from the Philippines) has recommended elsewhere on EC. If you are having trouble building up your b's and are taking them in high doses then make sure your supplements don't contain fillers like magnesium sterate, tricalcium phosphates and others as it can lower the absorption. As explained by Ted (who also recomends liver here), you will have to scroll down the page to the general comments: http://earthclinic.com/supplements.html

Posted by Just Chillin (Vannes, France) on 12/07/2011

Dear Ted,

I need help with taking B vitamins. I was told I had a b1 deficiency, and have been taking thiamin pyrophosphate since february this year. I was suffering from burning feet. It seemed to improve, then began to get worse again. I was then advised to take b5 too, and have been taking that for a few months. I started reducing the b1, as was taking a mix ofbuts etc, with b's in it.

Then just recently I started having burning and prickly in the legs, which is uncomfortable. I went back to my advisor who discovered it was low in the b1 again, even though I had taken it the night before. I also showed low in b6 and b12. She has suggested that I start taking b6 and b12. I said would a b complex be better, but she said I tested ok for b complex. Any ideas on what has happened? Could taking the b1 and b5 on its own have affected the b6 anf b12. I am so confused and just want to get this right, any help please, would be wonderful. Thank you so much







 



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