Food

See our selected Tea Extract articles and internet sites.

If you have any questions regarding our Search Reports, please contact us at info@infomedsearch.com.

CONTINUE YOUR INFOMEDSEARCH RESEARCH with our previous InfoMedLinks. Start with InfoMedLinks 2008.

Custom Search

Food

Caffeine, Coffee, and Juice/Soft Drinks

NEWS:

Beverage Consumption A Bigger Factor In Weight, Study Shows “Researchers recommend limited liquid calorie intake among adults and to reduce sugar-sweetened beverage consumption as a means to accomplish weight loss or avoid excess weight gain.”

Coffee And Nighttime Jobs Don't Mix, Study Finds

Daily Consumption of Diet Soda Linked to Metabolic Syndrome, Type 2 Diabetes

Diet Soda and Salt: Destroying your Kidneys? “Researchers studied more than 3,000 women and found those who drink at least two diet sodas daily double their rate of kidney function decline. Sodium also increased their odds, as demonstrated by test results consistent with previous experimental animal testing.”

Excessive Cola Consumption Can Lead To Super-sized Muscle Problems, Warn Doctors ““We are consuming more soft drinks than ever before and a number of health issues have already been identified including tooth problems, bone demineralisation and the development of metabolic syndrome and diabetes” says Dr Moses Elisaf from the Department of Internal Medicine at the University of Ioannina, Greece. “Evidence is increasing to suggest that excessive cola consumption can also lead to hypokalaemia, in which the blood potassium levels fall, causing an adverse effect on vital muscle functions.” A research review carried out by Dr Elisaf and his colleagues has shown that symptoms can range from mild weakness to profound paralysis. Luckily all the patients studied made a rapid and full recovery after they stopped drinking cola and took oral or intravenous potassium. … It appears that hypokalaemia can be caused by excessive consumption of three of the most common ingredients in cola drinks – glucose, fructose and caffeine. “The individual role of each of these ingredients in the pathophysiology of cola-induced hypokalaemia has not been determined and may vary in different patients” says Dr Elisaf. “However in most of the cases we looked at for our review, caffeine intoxication was thought to play the most important role. This has been borne out by case studies that focus on other products that contain high levels of caffeine but no glucose or fructose. “Despite this, caffeine free cola products can also cause hypokalaemia because the fructose they contain can cause diarrhoea.” The authors argue that in an era when portion sizes are becoming bigger and bigger, the excessive consumption of cola products has real public health implications. “Although most patients recover when they stop drinking cola and take potassium supplements, cola-induced chronic hypokalaemia can make them more susceptible to potentially fatal complications, such as an irregular heartbeat” says Dr Elisaf. “In addition, excessive consumption of any kind of cola can lead to a range of health problems including fatigue, loss of productivity and muscular symptoms that vary from mild weakness to profound paralysis.”

Fructose Boosts Blood Pressure, Studies Find

Fructose Intake Has Increased to More Than 10% of Daily Energy in US Diet

High Caffeine Intake Linked To Hallucination Proneness “Co–author Dr Charles Fernyhough, also from Durham University’s Psychology Department, noted “Our study shows an association between caffeine intake and hallucination-proneness in students. However, one interpretation may be that those students who were more prone to hallucinations used caffeine to help cope with their experiences. More work is needed to establish whether caffeine consumption, and nutrition in general, has an impact on those kinds of hallucination that cause distress.” Mr Jones added: “Hallucinations are not necessarily a sign of mental illness. Most people will have had brief experiences of hearing voices when there is no one there, and around three per cent of people regularly hear such voices. Many of these people cope well with this and live normal lives. There are, however, a number of organisations, such as the Hearing Voices Network, who can offer support and advice to those distressed by these experiences.” Caffeine use can lead to a condition called caffeine intoxication. Symptoms include nervousness, irritability, anxiety, muscle twitching, insomnia, headaches, and heart palpitations. This is not commonly seen when daily caffeine intake is less than 250mg.”

High Daily Consumption of Cola Soft Drinks Can Cause Hypokalemic Myopathy “The authors suggest that one component with the potential to alter potassium metabolism is high-fructose corn syrup, which can cause chronic osmotic diarrhea and potassium depletion. Glucose -- by inducing osmotic diuresis and hyperinsulinemia - or caffeine - by causing potassium redistribution into cells and/or increased renal potassium excretion - may also be responsible. Dr. Elisaf's team cautions that "the cola-induced chronic hypokalemia clearly predisposes to the development of potentially fatal complications such as cardiac arrhythmias." In his editorial, Dr. Clifford D. Packer at the Louis Stokes Cleveland VA Medical Center in Cleveland, Ohio, comments that "with aggressive mass marketing, super-sizing of soft drinks, and the effects of caffeine tolerance and dependence, there is very little doubt that tens of millions of people in industrialized countries drink at least 2-3 L of cola per day." “

Hormones may tie caffeine to cancer risk “Coffee and general caffeine intake may affect a woman's levels of estrogen and other sex hormones, a new study suggests -- offering a potential explanation for findings that link caffeine to certain cancers. Several studies have found connections between caffeine and breast and ovarian cancers, though the findings have not always been consistent. For instance, different analyses of the Nurses' Health Study (NHS) -- a large, long-running study of U.S. female nurses -- have linked higher caffeine intake to lower risks of breast and ovarian cancers in postmenopausal women, but to a higher risk of ovarian cancer before menopause. No one knows whether caffeine directly affects the risks of the cancers. But since estrogen and other sex hormones play a role in both diseases, it's possible that caffeine affects the risks of the cancers via hormonal influences, note investigators Dr. Joanne Kotsopoulos and colleagues at Harvard Medical School.”

Juice Wars Slideshow: The Best and Worst for Your Health

Juices, tea and energy drinks erode teeth

Missing Link Between Fructose, Insulin Resistance Found “"There has been a remarkable increase in consumption of high-fructose corn syrup," said Gerald Shulman of Yale University School of Medicine. "Fructose is much more readily metabolized to fat in the liver than glucose is and in the process can lead to nonalcoholic fatty liver disease," he continued. NAFLD in turn leads to hepatic insulin resistance and type II diabetes. Metabolic syndrome and type 2 diabetes have both reached epidemic proportions worldwide with the global adoption of the westernized diet along with increased consumption of fructose, stemming from the wide and increasing use of high-fructose corn syrup sweeteners, the researchers noted. High-fructose corn syrup, which is a mixture of the simple sugars fructose and glucose, came into use in the 1970s and by 2005 the average American was consuming about 60 pounds of it per year. Overall, dietary intake of fructose, which is also a component of table sugar, has increased by an estimated 20 to 40 percent in the last thirty years.”

Muscles Sore After Exercise? Sip Caffeine

Soft Drinks, Fructose Consumption, and the Risk of Gout in Men: Prospective Cohort Study: Ranked "Changes Clinical Practice" by F1000 “Conclusions: Prospective data suggest that consumption of sugar sweetened soft drinks and fructose is strongly associated with an increased risk of gout in men. Furthermore, fructose rich fruits and fruit juices may also increase the risk.”

Sugar-Sweetened Beverages, Physical Activity Independently Linked to Insulin Resistance “• A previous study found that each additional daily serving of sugar-sweetened beverages for children increased the risk for obesity by 60%. • In the current study, both lower consumption of sugar-sweetened beverages and higher physical activity improved metabolic and anthropometric outcomes. The combination of these 2 variables was synergistic in improving insulin resistance and concentrations of high-density lipoprotein cholesterol and triglycerides.”

What Soft Drinks are Doing to Your Body

Women Who Drink Lots Of Soda At Higher Risk For Early Kidney Disease “Women who drink two or more cans of soda pop per day are nearly twice as likely to show early signs of kidney disease, a recent study has found. … Shoham and colleagues concluded that additional studies are needed to determine whether the elevated risk of kidney disease is due to high fructose corn syrup itself, an overall excess intake of sugar, unmeasured lifestyle factors or other causes.”

Women Who Drink 2 or More Diet Sodas Daily Double Their Risk of Kidney Function Decline, Study Shows“Diet soda may help keep your calories in check, but drinking two or more diet sodas a day may double your risk of declining kidney function, a new study shows. Women who drank two or more diet sodas a day had a 30% drop in a measure of kidney function during the lengthy study follow-up, according to research presented Saturday at the annual meeting of the American Society of Nephrology in San Diego. “

Your brain on -- and off -- caffeine “The team demonstrated that stopping daily caffeine consumption produces changes in cerebral blood flow velocity and quantitative EEG that are likely related to the classic caffeine withdrawal symptoms of headache, drowsiness and decreased alertness. More specifically, acute caffeine abstinence increased brain blood flow, an effect that may account for commonly reported withdrawal headaches. Acute caffeine abstinence also produced changes in EEG (increased theta rhythm) that has previously been linked to the common withdrawal symptom of fatigue. Consistent with this, volunteers reported increases in measures of "tired," "fatigue," "sluggish" and "weary." Overall, these findings provide the most rigorous demonstration to date of physiological effects of caffeine withdrawal. The researchers also discovered a provocative and somewhat unexpected finding — that there were no net benefits associated with chronic caffeine administration. “

ARTICLES:

JOURNAL ARTICLES:

Carbonated Beverages and Urinary Calcium Excretion (Middle East Journal of Family Medicine 2009)

Coffee, Decaffeinated Coffee, and Tea Consumption in Relation to Incident Type 2 Diabetes Mellitus: A Systematic Review With Meta-analysis ( Arch Intern Med 2009) “Conclusions Owing to the presence of small-study bias, our results may represent an overestimate of the true magnitude of the association. Similar significant and inverse associations were observed with decaffeinated coffee and tea and risk of incident diabetes. High intakes of coffee, decaffeinated coffee, and tea are associated with reduced risk of diabetes. The putative protective effects of these beverages warrant further investigation in randomized trials. “

Cola intake and serum lipids in the Oslo Health Study. (Appl Physiol Nutr Metab. 2009) “Thus, the self-reported intake frequency of colas, but not other soft drinks, was negatively associated with serum HDL, and positively associated with TG and LDL.”

Diet Soda Intake and Risk of Incident Metabolic Syndrome and Type 2 Diabetes in the Multi-Ethnic Study of Atherosclerosis. (Diabetes Care. 2009) “Conclusions: Although these observational data cannot establish causality, consumption of diet soda at least daily was associated with significantly greater risks of select incident MetSyn components and type 2 diabetes.”

Effect of Cocoa Products on Blood Pressure: Systematic Review and Meta-Analysis (American Journal of Hypertension 2010)

Effects of caffeine on daytime recovery sleep: A double challenge to the sleep–wake cycle in aging (Sleep Medicine 2009) “The combined influence of age and caffeine made the sleep of middle-aged subjects particularly vulnerable to the circadian waking signal. We propose that lower brain synchronization due to age and caffeine produces greater difficulty in overriding the circadian waking signal during daytime sleep and leads to fragmented sleep. These results have implications for the high proportion of the population using caffeine to cope with night work and jet lag, particularly the middle-aged.”

Effects of long-term consumption of a high-fructose diet on conventional cardiovascular risk factors in Sprague-Dawley rats. (Mol Cell Biochem. 2009)

Fructose-rich diet-induced abdominal adipose tissue endocrine dysfunction in normal male rats. ( Endocrine. 2009)

Sweetened beverage consumption and risk of coronary heart disease in women. ( Am J Clin Nutr. 2009) “CONCLUSION: Regular consumption of SSBs is associated with a higher risk of CHD in women, even after other unhealthful lifestyle or dietary factors are accounted for.”

Systematic review on the effectiveness of caffeine abstinence on the quality of sleep. (J Clin Nurs. 2009) “CONCLUSIONS: The results showed that caffeine abstinence for a whole day could improve sleep quality. Thus, health practitioners were recommended to include caffeine abstinence in the instructions for sleep hygiene. RELEVANCE TO CLINICAL PRACTICE: This study demonstrates the effectiveness of caffeine abstinence in improving sleep quality. It provides evidence for the practice of including caffeine abstinence in sleep hygiene advice.”

Go to the top