Category Archives: eggs

Antibiotic Resistant Infections: A growing threat

  • At least 1.27 million deaths per year are directly attributable to AMR (Antimicrobial Resistance), according to global AMR estimates released earlier this year by IHME (Institute of Health Metrics and Evaluation) and Global Research on Antimicrobial Resistance (GRAM) Project partners.
     
  • The deadliest pathogen-drug combination globally was methicillin-resistant Staphylococcus aureus (MRSA), which caused more than 100,000 deaths attributable to AMR in 2019.
     
  • MRSA can infect cuts or scrapes in the skin and then be passed through skin-to-skin contact or through items such as towels or clothing that have touched the infected skin.

There are several pathways converging on Anti-Microbial Resistance.

  • Misuse and Overuse of antibiotics in raising meat, farmed fish, dairy, poultry and eggs
  • Excessive use of antibiotics in Medicine
  • Lack of clean water and sanitation in many poor countries
  • Poor infection and disease prevention and control in health-care facilities and farms
  • Poor access to quality, affordable medicines and vaccines
  • Lack of awareness and knowledge

Emerging resistant strains include sexually transmitted infections (gonorrhea, syphilis, chlamydia), MRSA, tuberculosis, several bacteria that cause pneumonia, urinary tract infections and food poisoning.

Viral infections are also demonstrating antibiotic resistance including HIV (10% of cases in the majority of monitored countries in Africa, Asia and Latin America).

Malaria is also developing drug resistance and as global warming pushes this disease further north, soon greater parts of USA will be experiencing this mosquito vectored disease.

Drug resistant fungal infections (especially Candida which represents a major threat to immunocompromised individuals, especially in the hospital setting) are becoming widespread.

Antibiotic resistance in animal husbandry presents unique challenges.

Antibiotic resistance is of great public health concern because the antibiotic-resistant bacteria associated with the animals may be pathogenic to humans, easily transmitted to humans via food chains, and widely disseminated in the environment via animal wastes. These may cause complicated, untreatable, and prolonged infections in humans, leading to higher healthcare cost and sometimes death.

One of the problems with the RWA designation (Raised Without Antibiotics) is that it does not distinguish between overuse (used for prevention, growth and output) and use to treat infections. There should be a category of RWA that indicates that antibiotics are used only to treat illness in animals, not to prevent infections or foster growth.

RWA programs are intended to supply customers, such as restaurants, grocers and other food service establishments, with meat, eggs, and dairy products that can be labeled as having never had exposure to antibiotics.

Research in animal husbandry has demonstrated that pork, beef, chicken, dairy, and eggs raised without preventive antibiotics following simple sanitary protocols can decrease total cost in the long run. (Taking into account costs of antimicrobial resistance) Yet farmers continue to utilize antibiotics routinely to prevent rather than treat infections, due to habit, marketing (pharmaceutical industry) and fear of change.

This raises the issue of free-range economics vs raising animals in crowded environments. Regenerative agricultural practice incorporates free-range animal husbandry into crop management in a manner that utilizes animal waste for fertilizer instead of fossil-based nitrogen sources (reducing carbon foot print and creating rather than destroying soil), and eliminates crowded conditions, decreasing risk of infection. In addition there are many other potential approaches to help solve the problem of AMR.

Phytochemicals added to chicken feed represents a possible alternative to antibiotics to control antibiotic resistance in poultry.

Altering simple practices in the dairy industry (changing the rate at which a slurry tank is emptied) can delay the proliferation of multidrug-resistant bacteria.

There are many potential approaches to animal husbandry that can mitigate the growing problem of AMR.

The use of antibiotics to enhance profitability margins in the animal production industry is still practiced worldwide. Although many technical and economic reasons gave rise to these practices, the continued emergence of antimicrobial resistant bacteria is furthering the need to reduce the use of medically important antibiotics. This will require improving on-farm management and biosecurity practices, and the development of effective antibiotic alternatives that will reduce the dependence on antibiotics within the animal industry in the foreseeable future. A number of approaches are being closely scrutinized and optimized to achieve this goal, including the development of promising antibiotic alternatives to control bacterial virulence through quorum-sensing disruption, the use of synthetic polymers and nanoparticles, the exploitation of recombinant enzymes/proteins (such as glucose oxidases, alkaline phosphatases and proteases), and the use of phytochemicals.

Studies investigating various alternatives to antibiotics use in livestock show promising results. These alternatives include the application of bacteriophages and phage derived peptidoglycan degrading enzymes, engineered peptides, egg yolk antibodies, probiotics, prebiotics and synbiotics, as well as quorum quenching molecules

Simple sanitation techniques in raising poultry can achieve benefit without the use of prophylactic antibiotics.

Keeping strict biosecurity in segregation, traffic control, cleaning, and disinfection, helps prevent a large proportion of harmful bacteria and viruses from entering poultry barns (Segal, 2013). Apart from good management practices, there are many alternative approaches proposed and explored by researchers worldwide to overcome bacterial infections in birds.

Likewise, eliminating antibiotics from pig feed does not reduce growth measured at the end of finisher stage, and eliminates the cost of antibiotics in the feed.

At the consumer level, purchase animal products raised without prophylactic antibiotics. This will protect your family and send a message to the marketplace. The more we demand food raised without preventive antibiotics, the more producers will be forced to change old-unsafe habits.

Buying meat, poultry, dairy and eggs from local farmers that do not utilize preventive antibiotic usage and practice regenerative agriculture, is a great way to shift the marketplace towards a safer and more sustainable food system that improves health and safety while addressing loss of soil and carbon footprint.

If you prefer watching documentaries there are several that address issues related to regenerative agriculture. Here are a few:

https://www.thepollinators.net/

https://www.biggestlittlefarmmovie.com/

https://www.bbc.com/future/bespoke/follow-the-food/

https://www.sacredcow.info/about-the-film

In the context of the COVID 19 pandemic I will close with the usual summary.

  1. Avoid alcohol consumption (alcohol wreaks havoc with your immunity)
  2. Get plenty of sleep (without adequate sleep your immune system does not work well )
  3. Follow good sleep habits
  4. Exercise, especially out of doors in a green space, supports the immune system
  5. Get some sunshine and make sure you have adequate Vitamin D levels. Supplement with Vitamin D3 to get your levels above 30 ng/ml, >40ng/ml arguably better.
  6. Eat an anti-inflammatory diet rich in micronutrients.
  7. Practice stress reduction like meditation and yoga which improves the immune system
  8. Eliminate sugar-added foods and beverages from your diet. These increase inflammation, cause metabolic dysfunction, and suppress immunity.
  9. Eliminate refined-inflammatory “vegetable oils” from your diet, instead eat healthy fat.
  10. Clean up your home environment and minimize your family’s exposure to environmental toxins by following recommendations at EWG.org with regards to household products, personal care products, and organic foods. (https://www.ewg.org/)
  11. Drink water filtered through a high quality system that eliminates most environmental toxins. (Such as a Berkey or reverse osmosis filter)
  12. HEPA filters or the home-made version (Corsi-Rosenthal box) used in your home or workplace can reduce circulating viral load by 80%. This works for any respiratory virus transmitted by aerosol and this winter we have the triple threat of RSV, Influenza, and SARS-CoV-2. It also decreases indoor air pollution.
  13. If you are eligible for vaccination, consider protecting yourself and your neighbor with a few jabs. Age > 50 and/or risk factors (Diabetes, pre-diabetes, insulin resistance, hypertension, obesity, heart disease, COPD, asthma, cancer treatment, immune suppression) suggests benefit from a booster. Risk for complications of boosters in adolescents, especially males, without risk factors, may equal benefit. Previous infection with Covid can be considered as protective as a booster. Discuss risk vs benefits with your doctor.

THIS WEBSITE PROVIDES INFORMATION FOR EDUCATIONAL PURPOSES ONLY. CONSULT YOUR HEALTH CARE PROVIDER FOR MEDICAL ADVICE.

Eat clean, drink filtered water, love, laugh, exercise outdoors in a greenspace, get some morning sunlight, block the blue light before bed, engage in meaningful work, find a sense of purpose, spend time with those you love, AND sleep well tonight.

Doctor Bob

An Egg a day keeps the doctor away

When I recommend to my patients that they should eat eggs and vegetables for breakfast rather than breakfast cereals (which have high sugar content and nasty gut inflaming gluten proteins) they often ask “well what about my cholesterol ?”. I tell them that eggs are a health food and that they do not need to worry about their cholesterol.

I first read about the man who ate 25 eggs per day for 15 years here.

Health Correlator: The man who ate 25 eggs per day: What does this case really tell us?

He was 88 years old when some cholesterol fearing physicians studied his plasma lipids (HDL, LDL, triglycerides etc.) and other aspects of his health (blood pressure, weight, etc.) and discovered that he was very healthy at the ripe age of 88.

Normal Plasma Cholesterol in an 88-Year-Old Man Who Eats 25 Eggs a Day — NEJM

This article was published in 1991 and the authors concluded that this man was exceptional in lacking adverse health consequences from eating 25 fat and cholesterol laden eggs every day for 15 years. Since that time, many studies on the health effects of eggs have demonstrated that they are in fact a health food and do not increase cardiovascular risk. In fact they provide a nutrient dense assortment of important vitamins, minerals, fat, and protein. Perhaps most importantly they are very high in choline, an important nutrient which is not hard to come by. Eggs and liver provide an abundance of choline.

Choline is widely used in the human body for many important functions. These include:

  • building block for an important neuro-transmitter called acetyl-choline (you cannot live without it)
  • essential component of the phospholipids that form the outer membrane of all living cells
  • chemical precursor to betaine which is essential to health, particularly for eyesight
  • methyl metabolism (methylation is an essential physiologic chemical process in our body)
  • protects against fatty liver disease

You can read more about the importance of choline here:

Choline – Wikipedia, the free encyclopedia

Regular egg consumption has been demonstrated to improve insulin sensitivity and cardiovascular risk profiles in healthy individuals and in individuals with metabolic syndrome as demonstrated here:

Whole egg consumption improves lipoprotein profil… [Metabolism. 2013] – PubMed – NCBI

Daily egg consumption with modest carbohydrate restriction in that study resulted in:

  • improved insulin sensitivity (good)
  • reduction in oxidized LDL (very good, oxidized LDL is the major instigator for atherosclerosis)
  • reduced triglycerides (high triglycerides are a marker for metabolic syndrome, precursor to diabetes, heart attack and stroke)
  • reduction in other blood lipid markers for cardiovascular risk (apoE, apoC-III, large VLDL, total IDL, small LDL and medium LDL)
  • increase in the size of HDL and LDL particles (reduction in cardiovascular risk)

They concluded that:

“Atherogenic dyslipidemia improved for all individuals”

In adults with metabolic syndrome (hypertension, insulin resistance, obesity, high triglycerides) three whole eggs per day with moderate carbohydrate restriction resulted in:

  • reduced waist size
  • reduced % body fat
  • reduction in inflammation as measured by plasma tumor necrosis factor alpha and serum amyloid

The authors concluded that:

“on a moderate carbohydrate background diet, accompanied by weight loss, the inclusion of whole eggs improves inflammation to a greater extent than yolk-free egg substitute in those with MetS.”

Effects of carbohydrate restriction a… [J Clin Lipidol. 2013 Sep-Oct] – PubMed – NCBI

In yet another study:

Daily intake of 3 whole eggs, as part of a CRD, increased both plasma and lipoprotein lutein and zeaxanthin. Egg yolk may represent an important food source to improve plasma carotenoid status in a population at high risk for cardiovascular disease and type 2 diabetes.

See for yourself:

Egg intake improves carotenoid status by increasi… [Food Funct. 2013] – PubMed – NCBI

In another study:

Consumption of 2 and 4 egg yolks/d for 5 wk increases macular pigment concentrations (lutein and zeazanthin) in older adults with low macular pigment taking cholesterol-lowering statins.

“Lutein and zeaxanthin may reduce the risk of dry, age-related macular degeneration because of their photo-oxidative role as macular pigment.”

Consumption of 2 and 4 egg yolks/d for 5 wk i… [Am J Clin Nutr. 2009] – PubMed – NCBI

Studies of the benefits of high-cholesterol egg consumption have  been so convincing that even the American Heart Association has removed advice to avoid eggs.

“…there have been a number of epidemiological studies that did not support a relationship between cholesterol intake and cardiovascular disease. Further, a number of recent clinical trials that looked at the effects of long-term egg consumption (as a vehicle for dietary cholesterol) reported no negative impact on various indices of cardiovascular health and disease”

Exploring the factors that affect blood cholesterol… [Adv Nutr. 2012] – PubMed – NCBI

From an evolutionary medicine point of view, eggs and ample dietary cholesterol have been around a long time in the human diet.

“Paleoanthropologists suggest that dietary cholesterol has been in the human diet for millions of years (710). Sources included eggs, bone marrow, and organ meats. Stone Age intake of cholesterol is uncertain, but it may well have exceeded current dietary recommendations.

 There are many important biological roles for cholesterol that span the spectrum from cell membrane structure to steroid hormone synthesis, bile acid synthesis, and others. The vital role of cholesterol in human metabolism and the well-established place of dietary cholesterol in the native human diet provide a robust theoretical challenge to the view that dietary cholesterol poses a threat to human health.

 More important still are prospective, population-based studies that, when similarly scrupulous about variation in other dietary components, find no association between cholesterol intake in general, or egg intake in particular, and the risk of CVD (13).”

Exploring the factors that affect blood cholesterol… [Adv Nutr. 2012] – PubMed – NCBI

Here are more links to discover that eggs are a health food.

Egg consumption and endothelial function: a randomized controlled crossover trial.

Endothelial function testing as a biomarker of vascular disease.

Daily egg consumption in hyperlipidemic adults–effects on endothelial function and cardiovascular risk.

Endothelial function testing as a biomarker of vascular disease.

Daily egg consumption in hyperlipidemic adults–effects on endothelial function and cardiovascular risk.

High intake of cholesterol results in less atherogenic low-density lipoprotein particles in men and women independent of response classification.

Plasma LDL and HDL characteristics and carotenoid content are positively influenced by egg consumption in an elderly population.

Eggs distinctly modulate plasma carotenoid and lipoprotein subclasses in adult men following a carbohydrate-restricted diet.

Significance of small dense low-density lipoprotein-cholesterol concentrations in relation to the severity of coronary heart diseases.

Rethinking dietary cholesterol. [Curr Opin Clin Nutr Metab Care. 2012] – PubMed – NCBI

Endothelial function is the term used to describe how well the arteries can expand and contract to meet the needs of blood flow. It is considered an important tool for assessing cardiovascular risk and it is impaired in metabolic syndrome, diabetes and in patients with coronary artery disease. Compromise of endothelial function is part of the process of atherosclerosis and heart attacks.

“There is thus a case to be made that endothelial function is potentially a summative measure of overall cardiac risk status and at least a valuable addition to standard risk measures (45). The ever-expanding footprint of research in this area in the cardiology literature attests to its importance.”

Despite (or because of) their high fat and cholesterol content, eggs have not been found to have any negative effects on endothelial function.

Rethinking dietary cholesterol. [Curr Opin Clin Nutr Metab Care. 2012] – PubMed – NCBI

So far since launching this blog a few weeks ago we have discovered that saturated fat and cholesterol containing foods are not the villains portrayed by the media, doctors and professional organizations that give us nutritional advice.

We have reviewed evidence that added sugar, sweetened beverages, refined carbohydrates (especially flour foods), trans-fats, and excessive polyunsaturated omega six fats from processed “vegetable oil” are the culprits with regards to obesity, diabetes, heart attack and stroke. These culprit components of the modern Western diet were definitely absent from the diets of our paleolithic ancestors. We have not evolved to tolerate them. These modern manufactured and processed “foods” represent an unhealthy deviation from our evolutionary past.

There is so much more to discuss. In the spirit of more work ahead during this 50th anniversary week of John F Kennedy’s assassination. I will close with a quote from JFK’s favorite poet and friend, Robert Frost.

“I have promises to keep, / And miles to go before I sleep, / And miles to go before I sleep.”

Peace,

Bob Hansen MD