Though this is a forum about Lucid Dreaming, I am interested to know what affect the B vitamins have had on your daily lives. Were you able to think more clearly or mentally calculate faster? If so than I am more than interested in taking B vitamins. 
Spectral Observer, you can find general information on the benefits of having vitamin B in your diet on the B vitamins article on Wikipedia. Here’s a quote on the health benefits of the complex B:
Hello… I tried taking 3 vitamin B complex tablets the other night. These were bought from Boots and have 100% the RDA for the various B vitamins. For example 2mg B6, 1μg B12 etc. I remember from the old forum Jeff and Davion (I think) recommending he use of B complexes, as opposed to the individual B vitamins, since they work together in combination so that they get abbsorbed into the body better and their combined effects are enhanced.
Anyway, I can definitely report improved vividity of my dreams, good recall and lucidity. I have not had much lucidity for the last couple of years (I had not tried to either). I have used B-complexes in the past for LD purposes and had good results, but I had forgotten what dosage I was taking. 
A possible side effect of the high dosage is that I had a bit of a headache the next day. I’m not sure if this is due to the vitamins though, I had 8 hours of sleep that night and it was the first night I had more than 5 hours in almost a week 
Servo, why take three times the recommended dosage? Isn’t one pill more than enough? 
My reasoning for taking three times the recommended dosage was firstly that I generally need a large amount of a substance to have a noticeable effect, but most importantly because when you initially start taking a supplement, a large initial dose is much more effective in delivering the desired effects.
I have to update my earlier observations…
I was searching through the forums for some posts I had made a long, long time ago about my usage of B vitamins… I found this post: https://community.ld4all.com/t/b-vitamins-good-for-lds/4797
where I saw that I was taking a supplement with 100mg(!!) of the various B-vits compared to 1-2mg. Yes, that was almost a 70x stronger dosage!
After finding that out, I realize that my headache was nothing to do with the B-vits. More importantly it also shows that either the good results I experienced last week were merely a placebo effect combined with my renewed interest in LD’s 
, or that a releatively low dosage is all thats needed.
I tried taking another 3 pills last night without any lucidity or dream recall. Once again, this could have been due to only getting 5 hours sleep 
I will get some 100mg B complex supplements, and update you guys on my findings. Goodnight, time for my 5 hours… 
Are you aware that once you have had the RDA, any overdosage will be ignored by your system? Your body will just throw the excess away, that’s how most vitamins work…
The RDA is all you need in a day. If you have more than that, you’ll be just wasting your money, because it won’t be absorbed and won’t have any extra effects. oO
Not neccersarily so, Bruno. Doses of vitamins far in excess of the RDA are not always rejected by the body. Infact “Megadoses” (several times the RDA) can cause vitamin poisoning, known as hypervitaminosis. This poisoning is possible with 1000x RDA of vitamin B6 and similarly high doses of B12.
The RDA is the amount of a nutrient recommended for healthy functioning of the body. It is not the the maximum amount of that can be absorbed by the body. Additionally, many nutritionalists disagree on the RDA for some vitamins, and suggest amounts several times the RDA, for example, see:
https://www.the-natural-path.com/vitamin-requirement.html
However you are correct in saying that some of the excess of certain vitamins are rejected by the body. Water soluble vitamins such most the B vitamins and vitamin C are expelled in urine when in excess.
I hope this is useful background info. 
B6 seems to have no effect on my dreams or dream recall. (not even placebo effect 
)
I tried 120mg B6 a few times right before going to sleep and one time in the morning doing WBTB.
Am I doing something wrong? 
well I’m giving it a shot…I took some sort of daily multivitamin we have that I found in the bathroom…it’s a set of 4 pills, two of which contain B6. Looks like a total of 12mg, so it’s not much. But I ate it with a banana, so I’m ready for some really vivid lucid dreams.
report based on my first experience with the B6. Had my worst dream recall of the last 2 months. Only remembered bits and pieces, no lucidity. BUT, there was one strange thing that may have been related…
Generally I’ll wake up around 5-6am for the first time, and get up and write in my dream journal. If I wake up at 2 or 3 or anytime earlier, I usually don’t have any dream recall. But last night I woke up at 1am, after just a couple hours sleep, and had a vivid emotionally disturbing dream. That’s a good thing, as it related to my dream goal in a way.
Since I took the vitamins about 9 and went to bed around 11, I wonder if they were in full effect and caused me to dream earlier than I normally would? Maybe I should try taking them right before bed. I found it very strange that I didn’t continue having intense or vivid dreams after that.
Vitamin B6 did ABSOLUTELY NOTHING for me.
This is what I’ve heard: For good results with B6 you should use at least 250mg. For great results you should probably take about 1g. The best dream fuel is 550mg of Valerian, 1g of B6, and 5mg of melatonin.
If you havent had results from b6, youre probably not taking enough, most multi-vits contain no more than 2mg B6 (so you would need to take about 250 pills for and effective dose), and with pure 50mg B6 pills, that’s still 10 pills for a good dose.
In my opinion, (d)[b]r/b[b]g/b are never the way. Use will power and you can’t go wrong.
EDIT: I had to spell (d)[b]r/b[b]g/b weird, because parental controls censored it out originally.
I took 100mg of B6 1 hour before bed and had two lucid dreams in one night for the first time!
The second night I had none, but may have had an increase in clarity and recall.
Tonight is night 3, so we shall see…
You can’t take 1g B6!
more than 100mg can cause nerve damage
B6 has definately had an effect on my dreams this week. Although it doesn’t trigger lucidity or anything like that, I have noticed that my dreams have a definate linear continuity that is usually missing from NDs in the past.
Instead of having completly random jumps between the chaos of unrelated events, everything progresses in a more organized storyline model. In addition to this, waking and returning to sleep has been regularly dropping me back directly into the same dream at the same time, like putting the story on pause.
At first I thought because everything seems more logical, it would be harder to recognized weirdness, dreamsigns, and thus enter lucidity. But there are still plenty of things out of the ordinary to notice, except everything seems to hold together better. This leads me to believe that B6 would make it easier to stay in the dream after lucidity is obtained. Also, if one wakes up from a good dream, it can be re-entered much easier.
Does anyone know if the effectiveness of B6 decreases over time and requires larger doses?
My guess, since your daily need of vitamins is set on the same amount for your total life is that you don’t require larger doses. If the body would gain toleration for B-6 and after time you would require more to have the same effect, wouldn’t this also be with your daily need?
Just my thoughts on this, not an ensurance.