AA> I've never heard of the requirement to be out in actual sun for
 AA> the D suppliment to take effect.  I only heard that any vitamin
 AA> supp should be taken with food.

Most vitamins, in the form they are sold, are worthless until your body 
processes the sold form, which is usually called a "pro-hormone", into 
its activated form.

From: https://tinyurl.com/usnwhtpv (sciencefriday.com)

"Here's how it happens: Our skin naturally contains a precursor to 
vitamin D. When the sun's ultraviolet rays touch the skin, they convert 
the precursor to a molecule called vitamin D3, which then follows a 
metabolic pathway through the liver and finally to the kidneys, where 
it's converted into a molecule called calcitriol. That's the good 
stuff-the active form. (Vitamin D obtained from food or supplements must 
also follow that metabolic pathway to become active.)"

That entire page talks about the process in good detail.  A recommended 
read.

 AA> That 7000IU seems quite a lot!

It is a lot but I am not in "normal" health, either.  Specifically, 
Vitamin D3 helps with the constant, painful, and permanent swelling in 
my entire lower leg and foot.  It also has many other benefits.

 AA> I rarely take the pills every day - only when I might feel a
 AA> bit spent of energy. I figure that my standard eating plan
 AA> provides most everything.

Unless you are a perfect eater, no, your diet doesn't always give you 
everything.  Now you need to eat right with supplements so they can 
provide you with the benefits you need, of course.

I'm not a doctor but I can say that vitamins have helped me and continue 
to help me.  My doctor prescribes me Vitamin B12 and a B-complex 
vitamin.

My only problem is that I can't afford all the supplements I need, such 
as Co-Q-10 since I am on a statin[1].  I hope to soon be able to get 
what I need.

Of course, trying to get myself into better shape will always help.

-- Sean

1 = https://www.healthline.com/health/coq10-and-s...
 
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