Diet Myth or Truth: Fasting Is Effective for Weight Loss

Typical Fasting Weight Loss Plans

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I was averaging a 1 to 2 lbs weight loss and that was a healthy normal. If you don't have pain, exercise more to meet the goal. They were a little snug but I was still a comfortable ten. For example, a review found tentative evidence that people treated with sulfonylureas had a higher risk of severe low blood sugar events RR 5. Or try it with your eyes closed.

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In an animal study, sports scientists at Coventry University found that caffeine helped offset the loss of muscle strength that occurs with aging. The protective effects were seen in both the diaphragm, the primary muscle used for breathing, as well as skeletal muscle. The results indicate that in moderation, caffeine may help preserve overall fitness and reduce the risk of age-related injuries. A recent study published in the Journal of Applied Physiology found that a little caffeine post-exercise may also be beneficial, particularly for endurance athletes who perform day after day.

Incorporate it in healthy ways: Be consistent with your intake. Research shows that when your caffeine intake is steady, your body adjusts, which counters dehydration , even though caffeine is a natural diuretic. Such a reaction happens when grilling or pan-frying meat.

Use of creatine by healthy adults in normal dosages does not harm kidneys; its effects on the kidney in elderly people and adolescents were not well understood as of People with kidney disease, high blood pressure, or liver disease should not take creatine as a dietary supplement. One well-documented effect of creatine supplementation is weight gain within the first week of the supplement schedule, likely attributable to greater water retention due to the increased muscle creatine concentrations.

A systematic review discredited concerns that creatine supplementation could affect hydration status and heat tolerance and lead to muscle cramping and diarrhea. Creatine taken with medications that can harm the kidney can increase the risk of kidney damage: Creatine has a fairly short elimination half-life, averaging just less than 3 hours, so to maintain an elevated plasma level it would be necessary to take small oral doses every 3—6 hours throughout the day.

As with most supplements, each person has their own genetic "preset" amount of creatine they can hold. The rest is eliminated as waste. Creatine supplementation appears to increase the number of myonuclei that satellite cells will 'donate' to damaged muscle fibers , which increases the potential for growth of those fibers.

This increase in myonuclei probably stems from creatine's ability to increase levels of the myogenic transcription factor MRF4. Creatine supplements are marketed in ethyl ester , gluconate , monohydrate , and nitrate forms. The most prevalent of these contaminants was creatinine , a breakdown product of creatine also produced by the body. Heavy metals contamination was not found to be a concern, with only minor levels of mercury being detectable.

Two studies reviewed in found no impurities. In , Harvard University researchers Otto Folin and Willey Glover Denis found evidence that ingesting creatine can dramatically boost the creatine content of the muscle. The substance creatine is naturally formed in vertebrates. While creatine's influence on physical performance has been well documented since the early twentieth century, it came into public view following the Olympics in Barcelona.

An August 7, article in The Times reported that Linford Christie , the gold medal winner at meters, had used creatine before the Olympics. An article in Bodybuilding Monthly named Sally Gunnell , who was the gold medalist in the meter hurdles, as another creatine user.

In addition, The Times also noted that meter hurdler Colin Jackson began taking creatine before the Olympics. At the time, low-potency creatine supplements were available in Britain, but creatine supplements designed for strength enhancement were not commercially available until when a company called Experimental and Applied Sciences EAS introduced the compound to the sports nutrition market under the name Phosphagen.

It is ineffective as a treatment for amyotrophic lateral sclerosis. A meta-analysis found that creatine treatment increased muscle strength in muscular dystrophies, and potentially improved functional performance. Creatine's impact on mitochondrial function has led to research on its efficacy and safety for slowing Parkinson's disease.

As of , the evidence did not provide a reliable foundation for treatment decisions, due to risk of bias, small sample sizes, and the short duration of trials. From Wikipedia, the free encyclopedia. This is the latest accepted revision , reviewed on 12 September Not to be confused with creatinine.

N -Carbamimidoyl- N -methylglycine; Methylguanidoacetic acid. Interactive image Interactive image. Std molar entropy S o Stout, Jose Antonio, Douglas Kalman, eds. Essentials of Creatine in Sports and Health. Metabolism and Possible Interactions". Mini Reviews in Medicinal Chemistry. Fasting is an age-old practice, often done for religious reasons, but fasting for weight loss is still capturing the public imagination.

You can find dozens of do-it-yourself plans touting the unproven benefits of fasting, ranging from flushing "poisons" from the body to purging 30 pounds of fat in 30 days. It's true that fasting -- that is, eating little to no food -- will result in weight loss, at least in the short term. But the risks far outweigh any benefits, and ultimately, fasting can cause more harm than good.

Some plans allow a few solid foods, but are still called fasts because they provide so few calories. Not all fasts are created equal. Some can be perfectly safe, such as medical fasts supervised by a physician. Religious and cultural fasts are typically undertaken as an act of devotion, last from hours, and are not intended to promote weight loss. Fasts lasting a day or two are unlikely to be dangerous for most healthy adults. But high-risk people, the elderly, anyone with a chronic disease, pregnant women, and children are advised against any type of fasting.

The real danger lies in staying on the fast for prolonged periods, anywhere from three days to a month.

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