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Asthma alert: Can healthful eating lead to better breathing?

girl with inhaler

Asthma has skyrocketed in the U.S.; the prevalence of asthma doubled between 1986 and 2005, and it is now estimated that 9.5 percent of children and 7.7 percent of adults have asthma. Obesity is known to compromise proper function of the lungs and airways and is associated with asthma-related inflammation. Increased prevalence of asthma among obese individuals has been demonstrated in children and adults. As body mass index (BMI) increases, asthma risk increases. It is now thought that the rise in childhood obesity is another causative factor for the recent rise in asthma.1-3,4

In addition to obesity, metabolic abnormalities in children and teens, such as high cholesterol, high triglycerides, and hyperinsulinemia, regardless of body weight, have now been associated with asthma. Also, regardless of their weight, children who drink more sugar-sweetened beverages are more likely to be diagnosed with asthma.5 This means that even if a child is of normal BMI, the standard American diet is likely taking its toll on lung function, producing early metabolic abnormalities that may set the stage for asthma, obesity, diabetes, and other chronic diseases.6 On the other hand, there is evidence that vegetable and fruit consumption and adequate antioxidant vitamin intake help to protect children against asthma.7 Of course, these same dietary factors also promote a healthy weight and protect against chronic diseases in later life.

Weight loss has been shown to improve asthma symptoms in obese children.8 In adults who have asthma, there is evidence that a single high-calorie, low-nutrient meal can spark airway inflammation, which can exacerbate asthma symptoms. Asthmatic adults consuming a single high-calorie, low nutrient meal, high in animal protein and added fat (1,000 calories worth of fast food hamburgers and hash browns) experienced increased airway inflammation four hours later. Researchers compared this to a 200 calorie meal, which did not increase inflammation.9

Obesity, resulting from the cumulative effects of years of overeating low-nutrient, high-calorie food is a risk factor for asthma. However, deleterious effects of a low-nutrient diet on lung function occur even in the short term, and can begin early in life. Children at normal BMI with poor diets or metabolic abnormalities are at risk, and the body reacts with increased airway inflammation even from a single, low nutrient meal. Collectively, these studies tell us that asthma is another disease whose major causes include poor nutrition and a sedentary lifestyle.

Since asthma is both a lifestyle and inflammation-related disease, dietary changes and weight loss are extremely effective at improving asthma symptoms. A high-nutrient diet floods the body with protective micronutrients, reduces inflammation, and promotes weight loss—allowing the body to resolve the risk factors for asthma mentioned above (obesity, high cholesterol, etc.). With a Nutritarian diet, many patients with asthma recover completely and no longer need asthma medication.

Reducing or eliminating asthma medications is a worthwhile goal, since long-acting beta-agonists have been linked to serious adverse events, and inhaled corticosteroids at high doses are associated with adrenal suppression, reduced bone density, and other issues.10-12,13 Long-acting beta agonists (which are often used in combination inhalers with steroids) may worsen asthma control with time.14 Short acting beta-agonists relieve immediate symptoms, but may also exacerbate the condition over time, as more frequent use is associated with an increased number of asthma events in the future.15 So as you take more drugs, you create a vicious cycle of needing more drugs.

In addition, the overuse and misuse of antibiotics also can make children more prone to asthma.16-18 A Nutritarian diet reduces chronic mucous, inflammation and incidence of recurrent infections. Most of these antibiotics are given to infants and toddlers with viral infections and viral otitis (ear infection), which combined with poor nutrition puts them on the road to asthma.

In my clinical experience over the last 20 years, I have seen some of the most severe asthma cases make complete recoveries, and many readers of my books have been able to eliminate their asthma by following a Nutritarian diet style. Here are some of the testimonials I have received:

“We have had tremendous success as a Nutritarian family… We have three daughters, Amanda is eight years old, Liza is seven years old and Adeline is five years old. Unfortunately, they all inherited my extreme food sensitivities. By following the guidelines in Disease-Proof Your Child, we were able to eliminate Adeline's asthma and Liza's chronic constipation and sinus issues… My husband and I have also healed ourselves through your program. Within four months of following the plan his asthma was cured and he lost 30 pounds.”
-The Atlanta family

“We thought we were doing our best to feed our boys healthy foods… However, after reading Disease-Proof Your Child we knew we could be doing so much better… Within two months, our boys were officially Nutritarians… The biggest health change has been for our son Madison. He has asthma and severe seasonal allergies. Before becoming Nutritarians Madison took his inhaler every day, sometimes twice a day during the spring and fall. The winter flu season was tough because Madison's flu would always turn into pneumonia because of his asthma. After adopting the Nutritarian diet-style, Madison has not used his inhaler once.”
-Melissa

“By the time they were four and five years old my two daughters had been suffering from different problems for years. Samantha had severe asthma and allergies all year long and Juliann had severe eczema. Both were on steroid drugs for their conditions that were not helping. I took them to several doctors and specialists. All told me there was nothing I could do, but treat it with medications and hope they outgrow it. Then a friend referred me to Dr. Fuhrman. Since then my daughters’ lives have changed dramatically! Both are off all meds and have no signs or symptoms of any of the previous conditions. They are not getting sick as often which is a bonus. Dr. Fuhrman's diet has helped the entire family. We are lean, muscled machines with no illnesses now.”
-Deb


References:

1. Sutherland ER: Obesity and asthma. Immunol Allergy Clin North Am 2008, 28:589-602, ix.
2. Canoz M, Erdenen F, Uzun H, et al: The relationship of inflammatory cytokines with asthma and obesity. Clin Invest Med 2008, 31:E373-379.
3. Akinbami LJ, Moorman JE, Bailey C, et al: Trends in asthma prevalence, health care use, and mortality in the United States, 2001-2010. NCHS Data Brief 2012:1-8.
4. Papoutsakis C, Chondronikola M, Antonogeorgos G, et al: Associations between central obesity and asthma in children and adolescents: a case control study. J Asthma 2014:1-28.
5. Berentzen NE, van Stokkom VL, Gehring U, et al: Associations of sugar-containing beverages with asthma prevalence in 11-year-old children: the PIAMA birth cohort. Eur J Clin Nutr 2014.
6. Cottrell L, Neal WA, Ice C, et al: Metabolic Abnormalities in Children with Asthma. Am J Respir Crit Care Med 2010.
7. Saadeh D, Salameh P, Baldi I, et al: Diet and allergic diseases among population aged 0 to 18 years: myth or reality? Nutrients 2013, 5:3399-3423.
8. Jensen ME, Gibson PG, Collins CE, et al: Diet-induced weight loss in obese children with asthma: a randomized controlled trial. Clin Exp Allergy 2013, 43:775-784.
9. High-fat meals a no-no for asthma patients, researchers find. ScienceDaily.  . In American Thoracic Society 2010 International Conference. New Orleans, LA; 2010.
10. Iftikhar IH, Imtiaz M, Brett AS, et al: Cardiovascular safety of long acting beta agonist-inhaled corticosteroid combination products in adult patients with asthma: a systematic review. Lung 2014, 192:47-54.
11. Cates CJ, Jaeschke R, Schmidt S, et al: Regular treatment with formoterol and inhaled steroids for chronic asthma: serious adverse events. Cochrane Database Syst Rev 2013, 6:CD006924.
12. Cates CJ, Wieland LS, Oleszczuk M, et al: Safety of regular formoterol or salmeterol in adults with asthma: an overview of Cochrane reviews. Cochrane Database Syst Rev 2014, 2:CD010314.
13. Lipworth BJ: Systemic adverse effects of inhaled corticosteroid therapy: A systematic review and meta-analysis. Arch Intern Med 1999, 159:941-955.
14. FDA Announces New Safety Controls for Long-Acting Beta Agonists, Medications Used to Treat Asthma. 2010.
15. Stanford RH, Shah MB, D'Souza AO, et al: Short-acting beta-agonist use and its ability to predict future asthma-related outcomes. Ann Allergy Asthma Immunol 2012, 109:403-407.
16. Muc M, Padez C, Pinto AM: Exposure to paracetamol and antibiotics in early life and elevated risk of asthma in childhood. Adv Exp Med Biol 2013, 788:393-400.
17. Murk W, Risnes KR, Bracken MB: Prenatal or early-life exposure to antibiotics and risk of childhood asthma: a systematic review. Pediatrics 2011, 127:1125-1138.
18. Metsala J, Lundqvist A, Virta LJ, et al: Prenatal and Postnatal Exposure to Antibiotics and Risk of Asthma in Childhood. Clin Exp Allergy 2014.

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