Tag Archives: high blood pressure

Nuttin’ But Salads N=1 Experiment: Week 17 Summary and Wrap-Up

Not a salad, but a sunrise from my hospital in the Sonoran desert

It’s over. Four months of mostly nothing but salads.

I wanted to lose some weight. I started at 175.5 lb (79.8 kg) and have ended at 162 lb (73.6 kg). So call it down 13 pounds. Not quite a stone (14 lb), as they say in England.

No regrets. It’s been fun, an adventure, especially since my wife was involved. My suit pants fit again. My family bought me an expensive sturdy belt that will support my holster, and it fits for the first time.

As a reminder: I’ve just been eating twice daily, without snacking in-betweeen meals. Compared to thrice daily meals plus snacking, twice daily meals makes more sense to me from an evolutionary and physiological viewpoint. Eating just twice daily may increase autophagy.

What’s Next?

Avoiding weight regain! And trying to maintain or improve my health as I age. I feel like I’ve really been “eating healthy.” My plan is to continue eating just two meals a day, one of which will be a gourmet salad. The other will include animal proteins, cooked vegetables, legumes, and fruit. I tend to prefer low-carb types of fruits and vegetables.

High Blood Pressure

I don’t remember if I’ve shared with you the effect of this diet on my blood pressure. Starting in January 2017, my blood pressures were hitting 160/110, 150/100 more commonly. Sometimes 170 systolic. For a few years before that, pressures were borderline high. I’m old school, so tend to define hypertension as 140/90 or higher on multiple occasions. In 2017, the American Heart Association re-defined hypertension as pressures over 130/80.  Those numbers make half of the U.S. adult population hypertensive and candidates for drug therapy! And it runs in my family.

That’s more like it…

I started an antihypertensive drug, amlodipine, in late December  2017. Before that, I tried magnesium supplements and hibiscus tea: no help. I reduced alcohol consumption: no help. My amlodipine dose initially was 5 mg/day, then 10 mg/day. The higher dose caused some minor but definite swelling in my feet. To decrease the swelling (edema), I reduced the dose to 5 mg/day. On Feb 6, 2018, I started this Nuttin’ But Salads experiment. That dose reduction indeed reduced my edema. On Feb 12, my records show the lower dose still controlling my pressure.

After nine weeks of the Nuttin’ But Salads experiment, I noticed my pressures were 120/85 or lower. I stopped amlodipine April 9. By April 21, pressures were rising a little but no higher than 130/90. Edema gone almost immediately.

My Omron unit

As I write this, my BP after a 12-hr shift at the hospital is 124/91. The recent average is about 130/92. Not great, but I’m happy with it and not inclined to go back on drug therapy.

Screenshot of the free Health app on my iPhone

Why is my BP lower now? It may well be the salad diet. But also consider my weight loss or much lower alcohol consumption. I’m still drinking hibiscus tea and taking a magnesium supplement, but I was doing that before the salad experiment. I’ll also admit my stress levels may be lower, too.

One of these days I’ll do a nutrient analysis of my salad diet and probably share it with you. I’d love to know if others would see reduced blood pressure with this way of eating, whether or not weight loss was involved or needed.

Steve Parker, M.D.

P.S. I wouldn’t be surprised if my diet has been “deficient” in calcium and vitamin D. Whether or not that matters is another issue.

Magnesium Supplementation Lowers Blood Pressure 

The effect is not great, but magnesium supplements are relatively cheap and safe. Excessive magnesium blood levels are prevented by healthy kidneys. If you have kidney impairment, you might develop magnesium toxicity when you take a supplement. Even if magnesium supplementation reduces average systolic blood pressure by only 2 points, half of supplementers will see a drop over 2 points.

Source: Magnesium Lowers Blood Pressure | Medpage Today:

“Magnesium supplementation leads to decreases in blood pressure among both hypertensive and normotensive adults, according to the findings of a meta-analysis.Taking 368-mg magnesium per day for 3 months led to 2.00 mm Hg reductions in systolic blood pressure (95% CI 0.43-3.58) and 1.78 mm Hg reductions in diastolic blood pressure (95% CI 0.73-2.82), Yiqing Song, MD, ScD, of the Indiana University School of Public Health in Indianapolis, and colleagues reported in a meta-analysis of 34 separate trials, published online in Hypertension.

“Our findings indicate a causal effect of magnesium supplementation on lowering blood pressures in adults,” the researchers concluded. “Our findings suggested that oral magnesium supplements can be recommended for the prevention of hypertension or as adjuvant antihypertensive therapy, although future rigorously designed randomized controlled trials with blood pressure assessment as primary outcomes are warranted to yield confirmatory evidence.”

 

Berry Science, or Berriology

Mmm, mm, good! And they’re low carb

The Mediterranean diet was originally found to be a healthy diet by comparing populations who followed the diet with those who didn’t.  The result?  Mediterranean dieters enjoyed longer lifespans and less heart disease, cancer, strokes, diabetes, and dementia.

Over the last 15 years, researchers have been clarifying exactly how and why this might be the case.  A study from Finland is a typical example.

The traditional Mediterranean diet provides an abundance of fresh fruit, including berries.  Berries are a rich source of vitamin C and polyphenols, substances with the potential to affect metabolic and disease processes in our bodies.

The Finnish researchers studied 72 middle-aged subjects, having half of them consume moderate amounts of berries, and half consume a placebo product over 8 weeks.  Compared with the placebo group, the berry eaters showed inhibited platelet funtion, a 5% increase in HDL cholesterol (the “good” cholesterol), and a 7-point drop in systolic blood pressure.

What does platelet function have to do with anything?  Platelets are critical components of blood clots.  Blood clots can stop life-threatening bleeding, but also contribute to life-threatening strokes and heart attacks.  Inhibition of platelet function can decrease the occurence of blood clots that cause heart attacks and strokes.  That’s why millions of people take daily aspirin, the best known platelet inhibitor.

Cardiovascular disease is a group of conditions that include high blood pressure, heart attacks, poor circulation, and strokes.  Berry consumption in this small Finnish study resulted in favorable changes in blood pressure, HDL cholesterol, and platelet function.  These changes would tend to reduce the occurence and severity of cardiovascular disease.

So berries don’t just taste good, they’re good for us.  If price is a concern, focus on the berries that are in season or use frozen berries.

Steve Parker, M.D.

Reference: Erlund, I., et al, Favorable effects of berry consumption on platelet function, blood pressure, and HDL cholesterol.  American Journal of Clinical Nutrition, 87 (2007): 323-331.