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All Things Eggs

11/8/2023

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Eggs are another one of those foods that have been demonized in the past. Now, with more research available, we have a better understanding of nutrients found in eggs and their benefits. Should eggs stay in our diet? Let’s dive into all things eggs:

 Egg Terminology:
Companies seem to keep adding more and more new labels to their eggs, such as free-range and pasture-raised, but what do these mean? Let’s break down some of those labels:

  • Conventional: Hens are kept in cages with access to food and water. This type of housing allows for more efficient production of eggs. 
 
  • Cage-free: Hens can move around in indoor houses and have access to fresh food and water. Hens must have access to enrichment (scratch areas, perches, and nests), litter, protection from predators, and be able to move around freely in the barn.
 
  • Free-range: Hens have access to the outdoors, but there are no specific guidelines as to what the space where they can range needs to look like. Farms can choose what their outdoor area consists of, and farms are not required to have third-party audits. 
 
  • Pasture-raised: Hens have access to the outdoors and primarily graze on grass and bugs. Similar to free-range farms, farmers can choose what their outdoor area consists of, and farms are not required to have third-party audits. 
 
  • Organic: Must meet the U.S. Department of Agriculture (USDA) standards to be considered organic, including having free-range hens fed with organic feed and not given any added growth hormone (although no feed is legally allowed to contain growth hormone, whether it’s organic or not). Organic eggs are more expensive than conventional ones, but both have similar nutrient profiles. These eggs must be antibiotic-free. 
 
  • Antibiotic-free: Farmers choose not to use any antibiotics in feed or water when the hens are young or already laying eggs.
 
  • Pasteurized: Eggs are heated to temperatures just below the coagulation point to destroy any pathogens found on the shell.  
​
  • Grading: Eggs are examined for both interior and exterior quality. Weight is not taken into consideration when determining the grade. In descending order of quality, eggs can be designated grade AA, A, or B. ​
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 Will Eggs Raise My Cholesterol?
Eggs do contain some cholesterol, but current research suggests that cholesterol found in food has a small effect on cholesterol levels in the blood. Saturated and trans fats found in foods have been shown to have a much more significant impact on cholesterol production in the liver. Eggs are relatively low in saturated fat, containing only 1.5 grams per egg, compared to the 6.3 grams found in 1 tablespoon of butter. Other foods high in saturated fat include coconut oil, butter, bacon, cheese, sausage, and processed foods. Rather than avoiding eggs, consider what you are eating alongside your eggs or what you are cooking your eggs in. Eggs contain many beneficial nutrients that play diverse roles throughout the body.
 ​ Nutrients Found in Eggs:
  Eggs are packed full of nutrients. Here are a couple of star nutrients found in eggs:

  • Choline: Eggs are a significant source of choline. Choline is used to form cell membranes, is a precursor for the neurotransmitter acetylcholine, and is vital for brain development and function, especially with early development during pregnancy. Choline is found in meat products, soybeans, and wheat germ. One egg provides 27% of the daily value. 
 
  • Protein: Eggs are a good source of highly digestible protein, providing about 7 grams per egg. They are also a complete protein, meaning they contain all of the essential amino acids. We need essential amino acids from food as our bodies do not make them. This makes eggs a great food to start your day with!
 
  • Vitamin A: This vitamin is vital for immune, reproductive, eye and skin health. One egg contains about 8% of your recommended daily intake. 
 
  • Vitamin D: Eggs are one of a handful of foods that contain vitamin D, along with fatty fish (salmon, tuna, mackerel), sardines, mushrooms, and fortified dairy and soy products. Vitamin D is essential for bone, immune, mental, and muscle health. Normally, humans produce vitamin D when our skin is exposed to sunlight. In the PNW, we do not get enough sunlight from September to May, so our vitamin D production slows down. Wearing sunscreen is also a barrier to making vitamin D. Recommendations include spending 15-20 minutes in the sun without sunscreen before putting sunscreen on and supplementing with vitamin D during the colder months of the year. Check with your dietitian or doctor to see what dose of vitamin D is appropriate for you. 
 
  • Vitamin B12: This vitamin is essential for immune and neurological health, repairing tissues in the body, and the production of red blood cells. It is found in animal products (meat, fish, eggs), fortified cereals, and nutritional yeast.
 
  • Iron: This mineral has many functions and is vital for transporting oxygen around the body. Many people are deficient in iron as the body only absorbs a fraction of iron consumed at one time. Eating iron-containing foods in the same meal as certain foods can decrease that absorption further. These include foods high in:
    • calcium phytates (found in plant foods) 
    • polyphenols (found in green and black tea 
    • and oxalates (found in leafy greens, nuts, and beans) ​​
  • Eating iron-rich foods with a vitamin C source (kiwi, citrus, bell peppers) can help increase iron absorption. One egg provides about 7% of your recommended daily intake.
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 What’s up with the Avian Flu?
Avian flu, also known as the bird flu, is a virus that infects all birds, including chickens. It can cause mild to severe symptoms and can even be fatal to birds. Humans cannot get the avian flu from well-cooked eggs, as the cooking process kills the virus. The egg industry has many years of experience with this flu. Egg farmers work closely with the USDA, the Food and Drug Administration (FDA), and the World Health Organization (WHO) to identify and manage outbreaks.

Overall, eggs can make a great meal addition from a health perspective, in moderation of course. Eggs contain many nutrients that your body needs, many of which can only be found in a handful of foods. There are also infinite ways you can use eggs in your cooking. Here is a recipe that is simple, quick, delicious, and leaves plenty of room for creative personalization. Enjoy!
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Veggie Scramble
Makes 4 servings

Ingredients:
  • 2 tablespoons oil
  • ½ medium onion, diced
  • 3 green onion, chopped
  • 1 red or orange bell pepper, diced
  • 2 cups baby spinach
  • 8 eggs, beaten
  • ½ teaspoon salt
  • ¼ teaspoon ground black pepper
  • ½ cup shredded cheese ​

Dice your onion and bell pepper and chop the green onion into ¼ inch pieces. Heat a
skillet over medium heat and add oil. Add diced onion and the green onions. Saute until softened, about 4 minutes. Add bell pepper and spinach, and saute for another 3 minutes. When all veggies have softened, add in your beaten eggs. Add salt and pepper. Reduce heat to low and stir. Cook until eggs have set into curds. Add salt and pepper. Sprinkle with cheese and stir (optional). Enjoy!

Nutrition per serving: 289 calories, 17g protein, 7g carbohydrates, 2g fiber, 21g fat, 550g sodium

Anca Soloschi, SPU Intern
References:
  • Egg terms. United Egg Producers. December 14, 2017. Accessed November 1, 2023. https://unitedegg.com/egg-terms/. 

  • Nutrients & vitamins in eggs: 13 essential nutrients. Australian Eggs. October 22, 2019. Accessed November 1, 2023. https://www.australianeggs.org.au/nutrition/nutrients-and-vitamins. 

  • Smolders L, de Wit NJW, Balvers MGJ, Obeid R, Vissers MMM, Esser D. Natural choline from egg yolk phospholipids is more efficiently absorbed compared with choline bitartrate; outcomes of a randomized trial in healthy adults. Nutrients. November 13, 2019. Accessed November 1, 2023. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6893749/. 

  • Office of dietary supplements - choline. NIH Office of Dietary Supplements. Accessed November 1, 2023. https://ods.od.nih.gov/factsheets/Choline-HealthProfessional/. 

  • Puglisi MJ, Fernandez ML. The health benefits of egg protein. Nutrients. July 15, 2022. Accessed November 1, 2023. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9316657/. 

  • Less sun, no worries: Balancing a vitamin D deficit. Newsroom. December 21, 2021. Accessed November 1, 2023. https://newsroom.uw.edu/resource/less-sun-no-worries-balancing-vitamin-d-deficit. 

  • Ems T, St. Lucia K, Huecker M. Biochemistry, iron absorption - statpearls - NCBI bookshelf. National Library of Medicine. April 17, 2023. Accessed November 1, 2023. https://www.ncbi.nlm.nih.gov/books/NBK448204/.
​​
  • Are eggs risky for heart health? Harvard Health. December 14, 2021. Accessed November 1, 2023. https://www.health.harvard.edu/heart-health/are-eggs-risky-for-heart-health.
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What is Leaky Gut and How Do You Heal it?

11/3/2023

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Leaky gut is a term used frequently nowadays, with little to no explanation of what it is and what can cause it. Is leaky gut even a real thing? Let’s dig into it:  ​

What is Leaky Gut?
A leaky gut refers to a dysfunction of the intestinal lining and increased permeability of that lining. Normally, the gut is lined with cells that only allow certain substances to pass and prevent the absorption of potentially harmful substances and agents, like harmful bacteria, toxins, undigested food, or substances that can cause inflammation. With leaky gut, the gut lining is compromised in some areas, and substances mentioned above can pass between the intestinal cells (referred to as altered interstitial permeability) into the bloodstream more easily, which can cause inflammation throughout the body. 
Symptoms of leaky gut are shared with other health conditions that are correlated to leaky gut and can include:
  • Chronic diarrhea, constipation, and bloating
  • Nutrient deficiencies
  • Fatigue
  • Skin problems such as acne, rashes and eczema
  • Joint pain 
  • Headaches
  • Difficulty concentrating ​
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What Causes Leaky Gut?

Increased intestinal permeability or gaps between the cells lining the gut can be caused by many things, including:
  • Microbiota dysbiosis refers to imbalances in your gut microbiome that can alter the intestinal lining and lead to inflammation. Taking antibiotics, having an unbalanced diet, and genetics are some things that can cause these imbalances.
  • Infections: Bacteria, such as H.Pylori, can cause changes to proteins found in between intestinal cells.
  • Drugs: Taking certain drugs at high doses and long term, such as nonsteroidal anti-inflammatory drugs (NSAIDs), aspirin, or paracetamol, can damage the gastric and intestinal mucosa and may increase the risk of altered intestinal permeability.
  • Excessive alcohol consumption: Can cause gaps in the intestinal barrier by dissolving important fats found in the intestinal mucosa.
  • Stress: Can affect the development of the intestinal barrier.
  • Diet: A diet high in refined carbohydrates and fats has been shown to cause inflammation and can alter the microbiome. 

Several diseases have been correlated to leaky gut and can be either a cause or effect of these diseases, including:
  • Irritable bowel syndrome (IBS)
  • GI conditions such as Inflammatory bowel disease (IBD), Crohn’s Disease and Ulcerative Colitis
  • Celiac disease
  • Alcoholic liver disease
  • Nonalcoholic fatty liver disease (NAFLD)
  • Diabetes
  • Small intestinal bacterial overgrowth (SIBO)
  • Chronic obstructive pulmonary disease (COPD)
  • Congestive heart failure (CHF)
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How to Heal Leaky Gut
Here are a couple of things you can do to help heal your gut:
​
  1. Low FODMAP Diet
If small intestinal bacterial overgrowth (SIBO) is confirmed as the cause of leaky gut, a diet low in fermentable oligosaccharides, disaccharides, monosaccharides, and polyols (FODMAPs) can help reduce symptoms associated with SIBO. This diet has shown to be helpful for IBS (Irritable bowel syndrome) as well and is a temporary solution to help reduce symptoms of IBS while figuring out which foods people may be sensitive to. There is now a product called the Food Marble, which measures gasses produced during digestion to help determine which substances found in food may be causing symptoms in people with IBS, SIBO, and food intolerances. The low FODMAP diet is used in conjunction with medical treatment and should be implemented with guidance from a doctor and registered dietitian. 

     2.   Probiotics
Eating foods high in probiotics, such as yogurt, kefir, kimchi, sauerkraut, miso, etc., can improve intestinal cell barrier function by introducing more “good” bacteria into the gut, strengthening the intestinal mucosal barrier, improving antimicrobial activity, and reducing intestinal permeability.

    3.   Vitamins
Vitamins A and D play a vital role in regulating gastrointestinal balance. Foods high in vitamin A include beef liver, egg yolks, dark-green leafy vegetables, and yellow and orange fruits and vegetables. Vitamin D is found in fatty fish, eggs, mushrooms, dairy, and orange juice fortified with vitamin D.

    4.    Fiber
Eating adequate fiber is essential to ensure that our microbiome is being fed. Fiber has anti-inflammatory properties and helps regulate the intestinal barrier. Fiber is found in plant foods such as fruits, vegetables, beans, legumes, nuts and seeds. We need between 25 and 38 grams of fiber daily. 

    5.   Medicinal herbs
Certain medicinal herbs can have a soothing and healing effect on the GI system, including slippery elm, green tea, licorice, marshmallow, ginger, peppermint, and plantain. A great way to take advantage of the benefits of these herbs is by making tea from them.

     6.   Glutamine
Glutamine is an amino acid that is critical in healing the gut lining, as it helps build the membrane of intestinal cells. Bone broth is a food that is high in glutamine and can be used to help heal the gut. Below, you will find a recipe for bone broth. 
*Bone broth may be unsuitable for those following a low FODMAP diet unless the recipe or product uses low FODMAP ingredients. 
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Pho-Inspired Bone Broth Recipe
Recipe makes 3 quarts
- 2 lbs chicken feet

- 12 cups water
- 1 1-inch piece of ginger, chopped
- 3-4 garlic cloves, crushed
- 6-8 whole black peppercorns
- 1 cinnamon stick
- 1 star anise
- 5-8 coriander seeds (optional)
- 2 bay leaves
- 1 onion, cut into quarters
- 2 stalks of celery, chopped
- 1 carrot, chopped
- 1 teaspoon salt, or more to taste

Add all the ingredients to a stock pot or a crock pot and cover with the water, leaving an inch of space at the top. If using a crock pot, add all the ingredients except carrot, onion, and celery (add these in the last 6-8 hours of cooking). Cover with a lid and cook on low for at least 4 hours if cooking on the stovetop or 24 hours using a crock pot. Once the broth is done, use a strainer to filter out the solid ingredients. Add salt. Once the broth is cold, it may have a layer of fat at the top that can be removed. Store in the fridge or freezer.

Nutrition per cup: 50 calories, 0g fat, 9 g protein, 2 g carbohydrates, 194 mg sodium, 0 g fiber
Overall, there are many things you can do to support your gut health and heal your gut lining if it is damaged. Treating leaky gut is individualized and should be catered to your specific issues and symptoms. We recommend working with your doctor and a dietitian to come up with a treatment that is right for you!
​
Anca Soloschi, Dietetic Intern
References:
Camilleri M. Leaky gut: mechanisms, measurement and clinical implications in humans. Gut. 2019 Aug;68(8):1516-1526. doi: 10.1136/gutjnl-2019-318427. Epub 2019 May 10. PMID: 31076401; PMCID: PMC6790068.

 Allan S. What is leaky gut syndrome? Canadian Digestive Health Foundation. November 29, 2022. Accessed October 27, 2023. https://cdhf.ca/en/what-is-leaky-gut-syndrome/. 

Aleman RS, Moncada M, Aryana KJ. Leaky gut and the ingredients that help treat it: A Review. Molecules (Basel, Switzerland). January 7, 2023. Accessed October 20, 2023. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9862683/. 

National Research Council (US) Committee on Diet and Health. Diet and Health: Implications for Reducing Chronic Disease Risk. Washington (DC): National Academies Press (US); 1989. 11, Fat-Soluble Vitamins. Available from: https://www.ncbi.nlm.nih.gov/books/NBK218749/
​

 Foundation P by: M. Boundless benefits of beautiful bone broth. Mindd. May 3, 2018. Accessed October 20, 2023. https://mindd.org/beautiful-benefits-bone-broth/.
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    SD Blog 

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    ​Megan Ellison,
    ​MS, RDN, CSOWM, CDE Founder

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