If you think that quick weight loss from a low-carb diet is worth the unpleasant side effects, you might be wrong. According to a study published by the University of Pennsylvania's School of Medicine in March of 2010, people who lose weight using a low-fat diet will be more likely to remain at a healthy weight than low-carb dieters. Do not ignore any side effects of a low-carb diet -- if any are persistent, see your doctor immediately.
Smell
The bad breath associated with low-carb diets, also known as "keto-breath," has a distinctive odor. While the smell will not be the same for all dieters, there are some common characteristics. If your breath is sweet or smells of rotten fruit, this is most likely caused by your low-carb diet. An alcoholic smell, similar to nail polish remover, is also common.
Causes
The bad breath associated with low-carbohydrate diets is usually caused by a process in your body called "ketosis." Ketosis occurs when a lack of carbohydrates causes your body to produce ketones. Your body forms ketones to replace the normal energy source ordinarily derived from carbohydrates. Acetone is produced as a result of this process -- the same substance used in many nail polish removers. If your breath is malodorous but does not smell fruity or of alcohol, the odor may be caused by the increased protein in your diet, which can contain sulfur. Halitosis is a common side effect of low-carb diets such as Atkins.
Danger
A fruity or alcoholic smell on your breath that cannot be attributed to individual foods or alcohol you have ingested is almost certainly a sign of ketosis. Ketosis is not a normal state for your body and can be dangerous. Ketosis can cause weakness, fatigue, constipation, dizzy spells and headaches, in addition to bad breath.
Treatment
Dr. Atkins advised followers of his diet to carry chlorophyll tablets or breath mints to disguise their bad breath. Eating breath mints or using breath fresheners may have a short term effect on your breath, but will wear off quickly. Toothpastes and mouth-washes may help for a short time, but the problem will persist until you discontinue the diet.
Considerations
"Keto-breath" is not just associated with low-carb diets. Diabetes sufferers and starving people may also experience the same type of bad breath. According to Rutgers New Jersey Agricultural Experiment Station, ketosis can be fatal for diabetic people. Pregnant women should also be wary of low-carb diets, as ketosis can cause miscarriage or fetal abnormalities.
References
- University of Pennsylvania School of Medicine: Low-Fat Diets Outlast Low-Carb Diets
- "Journal of Athletic Training"; Glucose Emergencies -- Recognition and Treatment; David E. Martin, M.S., A.T.C.; 1994
- Wayne's Word: Losing Weight By Eating Saturated Fats?
- "Essays of an Information Scientist;" Halitosis, the Silent Affliction: A Profile of Bad-Breath Research; Eugene Garfield; November 1982
- Rutgers New Jersey Agricultural Experiment Station: Fad Diets -- Healthy or Hazardous?
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