The ABC and Ds of Vitamin Supplements and Health
November 21st, 2014 | 
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Visit: http://www.uctv.tv/) UCSF Internist Dr. Jeffrey Tice, helps make sense of all the studies on vitamins and health. Series: “UCSF Osher Mini Medical Sc…
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Most of my adult live I have been neglecting to eat the recommended amount
of fruits and vegetables and went the supplemental way. I recently visited
the doctor and he said that whatever it is I’m doing to keep it up –
exercise, not smoking, and keeping the weight down. In my 50’s I’m more
healthy now than I was when I was in my 20’s. I also eat lots of meat and
drink alcohol in moderation. I wish I could know what my health would be
now if I had chosen not to take supplements.
Very interesting. If anyone has heard of updates of the studies on Vit. D +
calcium he mentioned that had started, I’d love to hear about that.
Read the book Perfect Health Diet by Paul Jaminet. Great book and makes
sense.
I attended this talk at UCSF Parnassus last year. It may be of general
interest if you’re considering taking vitamins, but I particularly enjoyed
the repeated pattern starting at 7:28 of “there was early evidence that
supplementing with X was beneficial, but later randomized controlled trials
demonstrated that doing so actually causes harm” — I think that it very
clearly demonstrates why the healthy user effect makes it dangerous to draw
conclusions from observational studies.
If some behavior is generally regarded as being healthy, health-conscious
people are more likely to do it. They are also likely to engage in many
other behaviors regarded as healthy. Researchers try to control for known
factors that aren’t being studied, like smoking, obesity, or exercise, but
the track record when hypotheses from observational studies are tested with
controlled trials is poor — see the summary at 1:04:21.
It’s far more difficult to run controlled trials on diet than on vitamins;
as a result, dietary recommendations are even more heavily dependent on
observational studies. The authoritative tone that’s often used when
presenting these recommendations frustrates me. I don’t know what the
answer is.
TLDR: RCTs FTW
Obviously this person has never had chronic disease that responded to
supplementation because of deficiencies caused by inborn or acquired
defects of metabolism. If he did, he’d realize that many of those
supplements can make a huge difference in the quality of life.
Fabulous video! There is a lot of great information and well delivered.
Vitamins from petrochemicals cannot be good for you. These are from nature
and a pioneering company and process. You need to see Touchstone Essentials
YER STAY ON MEAT – MILK – CHEESE 1-2+% RIGHT / AS WAS ? MENTIONED WHAT
PERSONS IN STUDY WERE ON!!????
Calcium + Vitamin D + Vitamin K2 = Strong Bones.
Watch it all for details but to save some time: Summary 1:04:54 everything
(Vit A,E,C, beta-carotene, Ca) is harmful or unhelpful or unknown; Vitamin
D3 and Omega 3s are unknown with future tests around the corner. Dr.Tice: I
do take a multivitamin but it’s not recommended doesn’t seem beneficial
1:20:40 and not worth the money. CoQ10 & Glucomsamine don’t appear
supported either. Conclusion: eat real food; not too much, mostly plants.
imo this will probably all change again in a few years. =)
Amazing lecture thank you
that was a really awesome talk.
these studies arent about vitamins, instead they are about _synthetic_
vitamins, so they´re pretty much meaningless
He mentions that there are uses for people who have deficiencies. For
example diabetic’s who takes Metformin are also prescribed Vitamin B12
because its well known that Metformin reduces B12 absorption. People who
have Bariatric surgery are prescribed multivitamins. He saying for normal
healthy people most supplements don’t really do much.