[Vitamin D, Nutrients for Bone Health, Working with Doctors, and Supplementation]
[This is an excerpt from long discussion of these issues that I had with someone I care deeply about. I wanted to share some of the information, however, especially if it could be helpful for anyone else interested in this material]
[Michael asked about the individuals serum Vit D, as the individual had said that since eliminating dairy/eggs s/he thought that could have been responsible for his/her low Vit D levels. Michael had said that while animal products are a source of Vit D; albeit an unhealthy, suboptimal source; and could have helped prevent a low serum Vit D, without measuring Vit D levels before the dietary change, we would have no way of knowing how much or how little these animal products contributed to the individual's serum Vit D.]
"Hi Michael,
Thank you again for your help. My vitamin D hadn't been measured before but I had also never ever experienced excruciating pain in joints/bones and or muscles that continued for so long so I knew something had to be wrong. I first thought it was muscle aches from working out but that always goes over within a few days.
My doctor has prescribed both the vitamin D serum for 9 months total (after this first month of 1 x per week I then take only 1 ml per month) plus the vitamin D/calcium tablet, one daily. She said I should take that for the rest of my life except if I diet changes a lot so I get a lot more calcium daily. I've read about food with the most calcium so I'm making sure I try to get enough but it's hard to always know if you're getting enough. I doubt that there's any danger that I take too much vit. D. I'm just following my doctor's instructions and we'll be checking my blood again in 1-1/2 month.
I've heard from more [] friends that a lot of people appear to now be getting a vitamin D shortage, probably due to the limited amount of sunshine.
Thanks again.
Btw, are you going to continue your medical studies again soon?
Hope your Sunday is grand.
[]
Btw, I don't know if they've ever checked my vitamin D before but if it was too low they would have said it. There also was no reason to check it. "
Michael's response:
Thanks for the message, [person I love.]
Regarding your pain: We do not know, and probably will never know, if it was related to your low Vit D levels.
Here is why: You presented to your doctor with unexplained pain, and your doctor ran a diagnostic panel to try to determine what may have been responsible for that pain. The doctor found that your Vit D levels were low, may know about the evidence suggesting certain pain symptoms tend to be present in those with low Vit D levels, and thus treated the low Vit D with supplementation. Our diagnostic tests, as far as I know, are not accurate enough at this point to determine without a doubt that your pain was a direct result of low Vit D levels. In addition, even if the pain goes away after you begin Vit D supplementation, we have no diagnostic tools that would allow us to definitively determine that your pain went away because of the Vit D supplementation. I would think your doctor is simply hoping that will work, and as I mentioned, there is some evidence that pain and low serum Vit D are associated, but we have no way of knowing that for sure at this point, based on the evidence that I have seen.
Routine supplementation with calcium has been shown to increase harm with very limited, if any, benefit. In my opinion, your doctor is making a horrible decision in providing you with that blanket recommendation, and it shows me that s/he has little knowledge of diet/lifestyle, in addition to little knowledge of appropriate supplementation. Routine calcium supplementation violates the evidence-based principles that Novick outlines, which is why I am so disappointed in your doctor's recommendation, which does not appear to be based in the peer-reviewed, scientific evidence.
Based on the evidence, I would strongly recommend that you attempt to limit all supplementation to only the supplements that you have been medically diagnosed as needing, based on an established deficiency and lack of dietary/lifestyle solution, and then to discontinue those supplements as soon as your levels improve. Based on the research I have reviewed, supplements and medications should always be considered a solution of last resort, since they are typically associated with significant harms.
As I stated, B-12 is the one example of a supplement being the best choice, because the two other methods of obtaining adequate B-12: consuming B-12 from bacteria, typically from fecal material (as animals do in nature); or from eating animal products, which for many omnivores is not a reliable source due to digestive problems; come with greater associated harms.
My conclusions/recommendations on supplementation correspond exactly with Novick's supplement guidelines:
http://www.jeffnovick.com/RD/Q_%26_As/E ... ments.htmlUnderscoring this for calcium and Vitamin D supplementation, in addition to what Novick has already stated on the topic, is this recent scientific article that he featured on his Facebook wall:
""In conclusion, calcium supplements with or without vitamin D are associated with an increased risk for MI [myocardial infarction, or heart attack] and stroke, and this risk appears to apply across subgroups defined by important baseline characteristics. These findings suggest that targeted prescription of calcium supplements to specific population subgroups, such as younger people and those with low dietary calcium intake, should not be endorsed."
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3722731/from:
https://www.facebook.com/JeffNovickRD/p ... ream_ref=5Thus, based on that comment and the wealth of scientific evidence on general supplementation, especially with calcium and Vit D, your doctor appears to be exposing you to very real and very unnecessary harm. I am concerned about this, but, again, it is ultimately up to you to decide if you are. Your doctor is basically your medical consultant. Should you choose not to listen to his/her advice on the routine supplementation I would think either s/he would be willing to work with you on finding a better, more evidence-based solution, or referring you to another doctor who would be better able to do so.
As with any service industry, if the service professional we are working with is not provide us with excellent customer service, I think we should go find a service professional who can. I think this is especially true in healthcare, and both Novick and McDougall cover how they recommend working with healthcare professionals extensively.
The study I mentioned about the harms of calcium supplementation is just one of many that address the harms of supplementation, especially with calcium and Vit D. Novick and McDougall do a great job presenting a large body of that evidence in a meaningful way, and so I would highly recommend reviewing their resources, as I have recommended before.
While I would love to continue to help you locate, analyze, and interpret the information, as you point out it unfortunately does not help me progress much in my professional medical pursuits. Thus, please let me know if you have problems in these areas, and I would be happy to help you through them. However, please be aware that by asking me to do so we are then delaying my medical pursuits by the amount of time it takes me to work through this information with you *smiles and winks*.
However, helping people to learn how to make informed, evidence-based decisions in their lives, especially in terms of their health, has really helped underscore how appropriate medical school is for me and how much I will enjoy being a physician. Thanks for helping me better identify that by allowing me to help you through this material. An added bonus when I am a doctor is that I will be able to actually get compensated for my time and effort, so that is going to be another great perk
Since you seem to be really concerned about dietary calcium, and you do not seem to have come across the information that is widely present in Novick/McDougall's resources to alleviate that concern, let's go over dietary calcium really quickly:
(Again, here's my primer for implementing a healthy, evidence-based diet/lifestyle, which covers Novick/McDougall's resources:
viewtopic.php?p=434701#p434701 . I hope that helps make finding and reviewing the information easier.)
Novick recommends that we approach any nutrient we are concerned about by starting with two key questions: First, how much do we need, and second, how much are we getting?
from:
viewtopic.php?p=397402#p397402(Excerpt below, but please read the whole discussion at the link above, including all the links that Jeff Novick, posting as JeffN, references for the whole story. At the very least, please read all of the JeffN posts to get a better sense of the issue.)
"There are populations around the world that do no have osteoporisis yet have calcium intakes in the 300-500 range. Most of them also have total protein intakes about half of the USA and animal protein intakes of 1/4 to 1/7 of the USA.
... If you look at figure 18, you will see the impact of sodium and animal protein on calcium balance.
Quoting from the chart (Intercept value means where "balance" is reached)
Note: In a western-style diet, absorbed calcium matches urinary and skin calcium at an intake of 840 mg as in Figure 14. Reducing animal protein intakes by 40 g reduces the intercept value and requirement to 600 mg. Reducing both sodium and protein reduces the intercept value to 450 mg. "
So we know that on the Novick/McDougall diet, which limits both salt and animal protein, our needs for total dietary calcium are approximately 450 mg/day. For the general population on a western-style diet, it appears that 840 mg/day is the dietary calcium need, due to a much less health-supporting diet.
We can use the
https://cronometer.com/ , a free nutritional tracking tool, to track our nutrient intake and see how we are doing. Novick goes into how to do this on his forum:
search.php?st=0&sk=t&sd=d&sr=posts&keywords=cronometer&author=JeffNNovick has already done that for us, using two generic daily meal plans that follow his guidelines 100%:
Here's one based on brown rice, tomatoes and vegetables:
viewtopic.php?p=82851#p82851The results, particularly for bone health:
Calories 1573
Protein / 59.4 g / 108%
Calcium | 1247.5 mg / 125%
Sodium | 609.6 mg 122%
Magnesium | 687.9 mg / 164%
Total Cost: $5.75
Here's another, based just on plain baked potatoes and garden salad, that he did using only food from the fast food restaurant "Wendy's." Novick did this to demonstrate that it is possible to eat a healthy diet regardless of our situation:
viewtopic.php?f=22&t=9321"...
- 6 Wendy's Baked Potato's and
- 6 Side Salads
...
Energy, 1836.0
Protein, 54.4 g (Novick mentions this is a little low, but has repeatedly said that as long as we hit at least 80% of the RDA for any nutrient on any particular day, we will probably be free of any issues of deficiency.)
Calcium, 486.4 mg 49% [Based on the higher, 1000 mg RDA for the general, western-diet. But still sufficient based on the calcium balance research]
Magnesium, 593.1 mg 141%
...
Wow. Not bad at all. I have to admit, even I was a little surprised at how adequate this is. It easily surpasses most all vitamins and minerals including protein, and has more Omega 3 than the recommended minimum with a 6/3 ratio of less than 2/1.
Calcium was a little low but within acceptable range based on worldwide intakes. The only other ones were Vit E, Selenium and Zinc, all of which I have discussed in other threads. Considering these prior discussions, the Zinc and Vit E are not far off at all, which leaves only the selenium, which if we wanted to make this "perfect by the numbers" we could easily fix. We just had a discussion on foods that were highest in Zinc and Selenium per calories. And, remember, all recommended numbers are for averages over time, and this is just one day.
Most important, remember, this whole diet was based on "white" potatoes and "iceberg" lettuce, 2 foods that are said to be "worthless."
"
So as we can see, even a non-ideal, very limited diet based on white potatoes and iceberg lettuce meets our requirements for bone health, in addition to health in general.
I know you have expressed your dislike for potatoes and nightshade fruits/vegetables in large quantities, but we can easily substitute other starches and/or fruits/vegetables while fully meeting Novick's guidelines. Regardless, we can see that as long as we follow the guidelines, we easily meet, and in most cases surpass, all our nutrient requirements except for B-12 (which is best obtained from a supplement) and Vitamin D (which is best obtained from the sun.)
I hope that helps put your concerns to rest in terms of dietary calcium, other nutrients, and bone health.
Now, it is back to progress towards medical school for me, and funding that progress by helping my mom in her real estate business (
www.melodygrandell.com , if you know of anyone we may be able to help *smiles*). Medicine is going to be a long road, but I am really looking forward to being able to have a successful career serving my community as a health professional, and hopefully carrying on the incredible, evidence-based message that those like Novick/McDougall promote.
Please have a wonderful day, and please let me know if I can be of additional support. As I said, though, the information is all there for you to review, and I would highly recommend it.
Love,
Michael