Why take mega supplements at all?
An answer might be:

Coughing up into the sink and ADHD symptoms.
My mum has or had COPD. She would get up and wait for the coughing to start, if it had not already started, and after a period of damaging coughing fits, where clumps of alveoli, and other fleshy mucosal material would join sticking together and thus further destroying any future hope of a recovery, would be brought up into her throat and dropped into the sink, with a sigh of relief, signifying that hopefully the coughing would stop. As each coughing fit seemed to get worse over time, it was fortuitous at this time to be embarking on a science course and also fortuitous in that I had just finished three books. One on mega dosing on vitamins called the Orthomolecular approach to medicine, and the second book with almost 180 odd pages on why vitamin C was good for treating all sorts of conditions if taken in large enough doses, and the third book on the potential hopeful nutritional component for helping to fix or alleviate ADHD related symptoms. As my science course continued, so did my mum's condition, and my ability to get enough distinctions (grade A), was being called into question with the results of the already taken 5 or 6 assignments not producing the desired grades, throwing my future degree course, in nutrition or dietetics, into jeopardy.

Too much work.
This was getting serious for both of us. I needed to do something, and fast. The next thing that happened was the kick needed for the 'something' to happen. I had received an assignment on organic chemistry and was expected to have it finished just before Christmas 2020. This proved critical, because I felt sure to only get another pass (grade c or d) instead of the distinctions needed.

I was failing.
The features and problems of my inability to achieve distinctions were not the normal 'I don't understand' or the other 'I have not got time' or the other 'My brain isn't working' or the other 'Not answering the question properly' or for that matter not even 'I don't care!', but in fact were down to an inability to sit down for any length of time and stay focussed long enough to read and write something useful towards the answers being asked in the assignment, for any more than the equivalent one day a week.

So out of pure panick.
This ofcourse had something to do with my nature, but I really wanted to sit down and do this. I knew if things were going to change, that I would need to instigate that change my self. The question was what change? So out of pure panick I decided to put the knowledge from the three books that I had just read to use.

Life saving vitamin C.
I started with vitamin c, and decided to follow the advice to the letter. It was clear from the book that 3g or more of vitamin c would be the minimum requirement. The reason for this was that vitamin c is a cofactor in many chemical processes in the body. Also that the body will use up vitamin c in accordance to, and in a special order starting with dealing with what life threatening condition should be dealt with first. So there are some basic functions necessary for life and the immediacy of them working properly would use up what it needed first. Then the second most important life threatening function pending, that needed vitamin c, would be dealt with next. Now I do not claim to know how the body works, but this guy in the book seemed to have noticed that vitamin c curative capabilities seemed to be dose dependent. Meaning not enough vitamin c might not reach your problem or condition you were hoping to see a change in.

What has vitamin C got to do with anything.
Now it turns out that the second highest concentrations of vitamin c in the human body is the brain. Only some gland somewhere has more. It turns out this gland is the thyroid gland. So I did not want lack of vitamin c to be a factor in my better future performance any more. I have had enough of struggling. Especially if it was just because of a lack of something so cheap and non toxic as vitamin c everything said give it a go and I thought I have nothing to lose by trying and maybe some possitives.

I was desperate.
Well after a week had passed, I looked back and thought to myself. Something is better, but I don't know what. So encouraged I also added some B vitamins to my new regime in the hope that something else might happen. I was desperate. So I put the ideas from all three books into practice again with my own improved version of what collectively they might of been saying to me if they were to give me advice, without fear of being sued, because no book on its' own would dare say do what I was about to do.

Vitamin B1,anorexics and dementia.
So because vit B1 (thiamine) was mentioned in the ADHD book, and because the Orthomolecular book had mentioned that B1 is important supplement with too much alcohol consumption and its' apparent relationship to MS (multiple sclerosis) and my own research where I found out that B1 is present at extremely low levels in anorexics and dementia patients (where one third of dementia suffers die from starvation). Also that B1 is known as the brains conductor in controlling where and how nutrients are distributed. I thought I'll start there.

Vitamins and a nap might do it.
Well 500mg of B1 didn't do much. However taking 1g did! But it was not reliable. It did work and my concentration did improve and I could concentrate for more days that week. However it didn't last. I noticed the improvement, but also noticed edginess to my performance that week. So I added B2 on this particular day and I took 500mg of B2 and 1g of B1 and this was after having tried to study all morning, and had just given up. So after taking both of these supplements, I lay down and drifted off to sleep for about 35 minutes. Now taking a nap was a common necessity for me, so this I had done many times, but without the vitamin combo.

My success started to dwindle.
Upon waking I didn't feel any better or more capable, however desperate times needed me to try and study again despite this. To my utter amazement I discovered that concentration came easily and I kept it up for hours. I think three hours. This was unprecedented for me, and I was encouraged to continue that combo for a while. B vitamins are cofactors for each other, so as time passed after having made this progress it was met again by some resistance and my success started to dwindle.

Our brain is one third lecithin.
I started to realise, that I needed to find the next supplement. This recent combo had revealed I was also lacking in something else. Well I discovered that our brain is made up of one third lecithin by dry weight. So I figured this might be the next supplement that was needed, but as a precaution I would take more of the usual B vitamins that often come together in a B complex tablet. Whilst I waited for the B complex to arrive, I started on the lecithin and instantly noticed that I could sit and study for longer again only this time with even more focus.

Studied 10 days straight.
This resulted in my first ever consistent study period that lasted for 10 days straight, and along with the other B vitamins I have been able to sustain my new capabilities right through my course and have now achieved the requisite distinctions necessary for my degree. So what happened to my mum?

No coughing into the sink anymore.
Well she saw me ranting on about my new found abilities and was naturally curious. Especially when I told her that I found out that vitamin c is directly responsible for the manufacture of collagen, which in itself is what Alveoli is made out of. We have some 340,000,000 Alveoli in our lungs. So I recommended she try the vitamin c. She did. And this is 5 months later since she started taking just 2 to 3g a day, and now she has not coughed up any phlegm for 3 weeks, and before that, she had only coughed occasionally. She feels much much better, and her breathing has improved so much that I cannot remember the last time she said 'hold on I need to catch my breath'. It is now a further 3 months down the road and still no coughing into the sink.

Vitamins have never killed anyone, not yet at least.
Now of course this is not a cure. Hope can be a dangerous thing. All I'm suggesting is that if ones' conditions has a nutritional component, and then why not investigate it yourself. However, it may not have a nutritional component, so it might not work or help. Although it is only money, and vitamin c and vitamin B have never killed anyone in the world ever! Now compare that with the medical professions record and it is easy to see that vitamins could and possibly should be our first investigation when it comes to chronic diseases. Again this is just my anecdotal opinion and should not replace any professional medical advice.