Don,
It's difficult to find convincing medical evidence on the efficacy of any given pharmaceutical compared to a nutraceutical like vitamin D3 when used to combat a medical condition like hypertension.
Big pharma has a habit of twisting results of RCTs they fund to favor use of their patented pharmaceuticals... while down-playing adverse reactions...
At the same time there are researchers conducting RCTs on the same medical conditions using vitamin D3 as the method of intervention. Unfortunately, the vitamin D3 dose is usually ≤3333 IU/day and the duration of dose is frequently too short ≤ 5 weeks.
Moreover, hardly any of these vitamin D3 studies include taking the vitamin D3 cofactors, calcium, magnesium, zinc, boron, vitamin A (retinol) or vitamin K3.
In short, most of the RCTs involving vitamin D3 like this are either poorly designed, the researcher appears ignorant of vitamin D3 pharmacokinetics, or they've got a big pharma bias.
I'm a firm believer in evaluating the risk-reward ratio when it comes to deciding on how to treat medical conditions like hypertension... in short, I look at effectiveness vs side effects.
If you want contrast the adverse events reported on verapamil and hydrochlorothiazide, (listed in the post above and both frequently prescribed for hypertension) with vitamin D3, you get a very stark comparison of risks...
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That leaves efficacy as the next factor...
One of the more recent studies looking at safety and tolerability titled:
"
A Safety and Tolerability Study of the Combination of Aliskiren/Valsartan in Patients With High Blood Pressure, Followed by Long-term Safety and Tolerability of Aliskiren, Valsartan and Hydrochlorothiazide." at the following link:
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This study found that a combination of Aliskiren, Valsartan and Hydrochlorothiazide was able to reduce BP to < 140/90 in 86.6% of 179 patients analyzed on this regimen for 18 months...
What's interesting (and very confusing) about these results is there were 486 participants out of 601 who completed the study...
This begs the question... what happened to the other 307 participants... did this regimen of BP lowering drugs lower their BP and if so... how much?
Clearly there's been some cherry picking. Moreover, they sliced and diced the adverse events over 36 different types of medical conditions so that any one type of adverse medical condition looked small against the total number of participants.
There was one finding in the study report that indicated:
Core and Extension Treatment - Aliskiren/Valsartan/HCTZ
Number of Participants Analyzed 310
Overall Percentage of Patients With Adverse Events 61.6%
I've managed to keep my BP at or below 138/62 since starting the anti-inflammatory regimen... It had been much higher prior to starting vitamin D3... That said, vitamin D3 isn't a silver bullet... I need to watch my diet and get as much exercise as possible...
I avoid sugar, particularly high fructose corn syrup (HFCS). I also try to eat plenty of greens, fish and nuts...
I know this is confusing... but hope it helps.
Take care,
V/R, Batch