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Old 07-02-2010, 05:43 AM
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Default Fructose Linked to High Blood Pressure

Fructose Linked to High Blood Pressure
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People who consume the amount of fructose found in two-and-a-half regular soft drinks a day appear to have a higher risk of hypertension, a cross-sectional study showed.

Consumption of at least 74 grams per day was associated with 26% to 77% greater odds of crossing various thresholds of elevated blood pressure (P<0.05 for all), compared with lower levels of consumption, according to Diana Jalal, MD, of the University of Colorado Denver, and colleagues.

"Limiting fructose intake is readily feasible, and, in light of our results, prospective studies are needed to assess whether decreased intake of fructose from added sugars will reduce the incidence of hypertension and the burden of cardiovascular disease in the U.S. adult population," they wrote online in the Journal of the American Society of Nephrology
There has been a recent increase in the consumption of fructose in developed nations due primarily to the addition of table sugar or high fructose corn syrup to soft drinks, bakery products, fruit drinks, dairy desserts, and candies.

At the same time, the prevalence of hypertension has been rising. However, epidemiological studies have yielded conflicting results as to an association between the two trends.

To explore the issue, Jalal and her colleagues used data from 4,528 adults without a history of hypertension included in the National Health and Nutrition Examination Survey (NHANES) from 2003 to 2006.

The majority (61%) had a systolic blood pressure of less than 120 mm Hg. Another 30% were prehypertensive (systolic pressure of 120 to 139 mm Hg).

The rest of the participants had either stage 1 or stage 2 hypertension (6% and 2%, respectively).

Fructose intake was determined through a self-administered dietary questionnaire. Consumption of natural fruits was excluded to isolate intake of added sugar.

Median intake was 74 grams a day. Increasing systolic blood pressure was associated with increasing fructose intake, a trend that reached borderline statistical significance (P=0.05).

After adjustment for demographics, comorbidities, physical activity, smoking, total kilocalorie intake, and dietary confounders including total carbohydrate, alcohol, salt, potassium, and vitamin C intake, as well as other factors, fructose intake of 74 grams per day or higher was associated with higher odds of elevated blood pressure at the following thresholds (P<0.05 for all):

135/85 mm Hg: OR 1.26
140/90 mm Hg: OR 1.30
160/100 mm Hg: OR 1.77
Additional analyses showed that fructose intake was associated with systolic -- but not diastolic -- blood pressure.

The reason this study, and not some previous studies, found an association between fructose consumption and hypertension could be because of the high level of consumption in the current study, according to Jalal and her colleagues.

In addition, some previous studies looked only at soft drink consumption or included naturally occurring fructose from fruit in their analyses.

There are several possible mechanisms that might explain the positive association between fructose and blood pressure, the authors wrote, "including stimulation of uric acid, inhibition of [the] endothelial nitric oxide synthase system, and stimulation of the sympathetic nervous system, or by directly increasing sodium absorption in the gut."

The study was limited, they wrote, by the inability to establish a causal relationship between fructose and blood pressure using cross-sectional data, the reliance on self-reports, and the possibility of confounding by glucose in the foods assessed on the dietary questionnaire.

The study was supported by grants from the National Institutes of Health.

Jalal reported no conflicts of interest. One of her co-authors is listed as an inventor on several patent applications for lowering uric acid as it relates to blood pressure and metabolic syndrome. He is also author of The Sugar Fix.


Primary source: Journal of the American Society of Nephrology
Source reference:
Jalal D, et al "Increased fructose associates with elevated blood pressure" J Am Soc Nephrol 2010; DOI: 10.1681/ASN.2009111111.
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Old 07-02-2010, 09:22 AM
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Thanks Ted, I heard about this last night on the CoasttoCoastAM show with George Noory. One more good reason for folks to stay away from soft-drinks like soda pop, and watch their sugar intake. Kicking those bad habits can only lead to good things.
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Old 07-03-2010, 11:04 PM
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Lightbulb Fructose toxicity mediated by uric acid

The following link may provide useful additional information. Some of the findings are new, suggesting that uric acid may not only be a marker but also a mediator in CV disease and hypertension. Suggested daily maximum of 15gm fructose (count fructose also as 50% of sucrose intake) really means that fruit intake requires moderation, although it seems that the antioxodant content of fruit can attenuate the impact of fructose.

https://articles.mercola.com/sites/ar...y-18-2010.aspx
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Old 08-17-2010, 07:54 PM
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Very few soft drinks are sweetened with fructose. The most common sweetener in them is HFCS.
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Old 08-17-2010, 08:31 PM
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Speaking of high blood pressure just what are reasonable limits? I'm aware that 120/80 is considered normal but does that change with age? Are there other consideration?
A long time ago if believe I read that 100 plus your age was a good upper number
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Old 08-18-2010, 01:10 AM
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Blood pressure chart from BPASSOC

Billy E has had some success with Beet Juice and his blood pressure - even dropping the SBP by 15 mm Hg. There is a user survey unfortunately only a few people have replied but generally the results from beetjuice is helpful.

HTN and Beet Juice

Nitrate in Beetroot Juice Lowers Blood Pressure, Study Finds

It's very easy to mix. I have a small bottle I half fill with water add a tsp of powder, shake and drink. Not surprisingly it takes very beetrooty but it's OK. So far I haven't had a problem with pink urine but I'm adding more beetroot to my diet so will see if that changes.
Use Code WAB666 for an introductory $5 discount at IHERB. I use IHERB because it's cheapest shipping to UK. Keep order value below �18 to avoid customs duty and PO handling.
Eclectic Institute, Beet Juice Pow-der, 3.17 oz (90 g)
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Old 08-18-2010, 07:41 AM
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Quote:
Originally Posted by Ted_Hutchinson View Post

It's very easy to mix. I have a small bottle I half fill with water add a tsp of powder, shake and drink. Not surprisingly it takes very beetrooty but it's OK. So far I haven't had a problem with pink urine but I'm adding more beetroot to my diet so will see if that changes.
Use Code WAB666 for an introductory $5 discount at IHERB. I use IHERB because it's cheapest shipping to UK. Keep order value below �18 to avoid customs duty and PO handling.
Eclectic Institute, Beet Juice Pow-der, 3.17 oz (90 g)
Or here https://www.mountainroseherbs.com/sea...et+Root+Powder
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Old 08-18-2010, 08:45 AM
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Originally Posted by jfh View Post
That's an excellent price but to the UK standard International shipping is $20 so although it's very tempting it's still pretty pricey compared to IHERB. where shipping to UK = $4
However they appear to be a great company. I like the bit where they say
"Mountain Rose Herbs has one of the nation's most aggressive executive cap limits that states the two executive owners shall not make more than 3.5 times the amount of the LOWEST paid entry level employee. "
They also seem to have reasonable prices for coconut oil and green teas.
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Old 08-22-2010, 10:18 AM
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I only skimmed the thread so I may have missed it. I read recently that Fructose was named by biddness folk to sound like it comes from fruit. But it's just plain ol' agribiddness. Carghill and Archer goddamned Midland. Even if fructose is competely from fruit. The above named company's boards of directors should be tried for crimes agains humanity.

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