Congestive Heart Failure (CHF)
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Congestive Heart Failure (CHF) and Creatine

Written by ColleenO, FoundHealth.

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Creatine is a naturally occurring substance that plays an important role in the production of energy in the body. Easy fatigability is one unpleasant symptom of congestive heart failure (CHF). Creatine supplementation has been tried as a treatment for this symptom, with some positive results.

Effect of Creatine on Congestive Heart Failure (CHF)

Creatine is a naturally occurring substance that plays an important role in the production of energy in the body. The body converts it to phosphocreatine, a form of stored energy used by muscles. The effects of creatine on general athletic performance are probably the same effects that make it a useful treatment for congestive heart failure. The theory behind its use is that supplemental creatine can build up a reserve of phosphocreatine in the muscles to help them perform on demand. Supplemental creatine may also help the body make new phosphocreatine faster when it has been used up by intense activity.

Read more details about Creatine.

Research Evidence on Creatine

A double-blind study examined 17 men with congestive heart failure who were given 20 g of creatine daily for 10 days.42 Exercise capacity and muscle strength increased in the creatine-treated group. Similarly, muscle endurance improved in a double-blind, placebo-controlled crossover study of 20 men with chronic heart failure.43 Treatment with 20 g of creatine for 5 days increased the amount of exercise they could complete before they reached exhaustion.

These results are promising, but further study is needed.44

How to Use Creatine

Although some creatine exists in the daily diet, it is not an essential nutrient because your body can make it from the amino acids L-arginine, glycine, and L-methionine. Provided you eat enough animal protein (the principal source of these amino acids), your body will make all the creatine you need for good health. Meat (including chicken and fish) is the most important dietary source of creatine and its amino acid building blocks. For this reason, vegetarian athletes may potentially benefit most from creatine supplementation.

Twenty grams (20 g) was the daily dose of creatine used in studies on cogestive heart failure. By comparison, we typically get only about 1 g of creatine in the daily diet.)

Creatine's ability to enter muscle cells can be increased by combining it with glucose, fructose, or other simple carbohydrates.11,12 Caffeine may block the effects of creatine.14

Types of Professionals That Would Be Involved with This Treatment

  • Integrative MD
  • Naturopathic doctor
  • Clinical nutritionist or registered dietitian

Safety Issues

Creatine appears to be relatively safe. 1 No significant side effects have been found with the regimen of several days of a high dosage (15 g to 30 g daily) followed by 6 weeks of a lower dosage (2 g to 3 g daily). A study of 100 football players found no adverse consequences during 10 months to 5 years of creatine supplementation. 2 Contrary to early reports, creatine does notappear to adversely affect the body's ability to exercise under hot conditions and might even be beneficial. 3 Dividing the dose may help avoid gastrointestinal side effects (diarrhea, stomach upset, and belching). In one study of 59 male soccer players, two separate 5 g doses was associated with less diarrhea than a single 10 g dose. 4 However, there are some potential concerns with creatine. Because it is metabolized by the kidneys, fears have been expressed that creatine supplements could cause kidney injury, and there are two worrisome case reports. 5 However, evidence suggests that creatine is safe for people whose kidneys are healthy to begin with, and who don't take excessive doses. 6 Furthermore, a 1-year, double-blind study of 175 people with amyotrophic lateral sclerosis found that use of 10 g of creatine daily did not adversely affect kidney function. 7 Nonetheless, prudence suggests that individuals with kidney disease, especially those on dialysis, should avoid creatine supplements.

Another concern revolves around the fact that creatine is metabolized in the body to the toxic substance formaldehyde. 8 However, it is not clear whether the amount of formaldehyde produced in this way will cause any harm. Three deaths have been reported in individuals taking creatine, but other causes were most likely responsible. 9 It has also been suggested that use of oral creatine would increase urine levels of the carcinogen N-nitrososarcosine, but this does not seem to be the case. 10 A few reports suggest that creatine could, at times, cause heart arrhythmias . 11 As with all supplements taken in very high doses, it is important to purchase a high-quality form of creatine, as contaminants present even in very low concentrations could conceivably build up and cause problems.

References

  1. Juhn MS, Tarnopolsky M. Potential side effects of oral creatine supplementation: a critical review. Clin J Sport Med. 1998;8:298-304.
  2. Kreider R, Rasmussen C, Melton C, et al. Long-term creatine supplementation does not adversely affect clinical markers of health. Poster presented at: American College of Sports Medicine 2000 Annual Scientific Meeting; May 31-June 3, 2000; Indianapolis, IN.
  3. Volek JS, Mazzetti SA, Farquhar WB, Barnes BR, Gómez AL, Kraemer WJ. Physiological responses to short-term exercise in the heat after creatine loading. Med Sci Sports Exerc. 33(7):1101-8.
  4. Ostojic SM, Ahmetovic Z. Gastrointestinal distress after creatine supplementation in athletes: are side effects dose dependent? Res Sports Med. 16(1):15-22.
  5. Pritchard NR, Kalra PA. Renal dysfunction accompanying oral creatine supplements. Lancet. 351(9111):1252-3.
  6. Poortmans JR, Francaux M. Long-term oral creatine supplementation does not impair renal function in healthy athletes. Med Sci Sports Exerc. 1999;31:1108-1110.
  7. Groeneveld GJ, Beijer C, Veldink JH, Kalmijn S, Wokke JH, van den Berg LH. Few adverse effects of long-term creatine supplementation in a placebo-controlled trial. Int J Sports Med. 26(4):307-13.
  8. Yu PH, Deng Y. Potential cytotoxic effect of chronic administration of creatine, a nutrition supplement to augment athletic performance. Med Hypotheses. 54(5):726-8.
  9. Creatine is innocent; FDA rejects creatine role in deaths. Associated Press: April 30, 1998.
  10. Derave W, Vanden Eede E, Hespel P, et al. Oral creatine supplementation in humans does not elevate urinary excretion of the carcinogen N-nitrososarcosine. Nutrition. 2006 Jan 12. [Epub ahead of print]
  11. Kammer RT. Lone atrial fibrillation associated with creatine monohydrate supplementation. Pharmacotherapy. 25(5):762-4.
  1. Green AL, Hultman E, MacDonald IA, Sewell DA, et al. Carbohydrate ingestion augments skeletal muscle creatine accumulation during creatine supplementation in humans. Am J Physiol. 1996;271:E821-E826.
  2. Steenge GR, Lambourne J, Casey A, et al. Stimulatory effect of insulin on creatine accumulation in human skeletal muscle. Am J Physiol. 1998;275:E974-E979.
  3. Williams MH, Branch JD. Creatine supplementation and exercise performance: an update. J Am Coll Nutr. 1998;17:216-234.
  4. Gordon A, Hultman E, Kaijser L, et al. Creatine supplementation in chronic heart failure increases skeletal muscle creatine phosphate and muscle performance. Cardiovasc Res. 1995;30:413-418.
  5. Andrews R, Greenhaff P, Curtis S, et al. The effect of dietary creatine supplementation on skeletal muscle metabolism in congestive heart failure. Eur Heart J. 1998;19:617-622.
  6. Schaufelberger M, Swedberg K. Is creatine supplementation helpful for patients with chronic heart failure? Eur Heart J. 1998;19:533-534.

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