5. GASTROINTESTINAL HEALTH Flashcards
This module covers: • Digestive insufficiencies. • The mucosal barrier. • Elimination diet. • The 5R protocol. • Dysbiosis. • Metabolic endotoxaemia. • GI disorders.
Define the following:
* Hypochlorhydria
* Achlorhydria
* Hyperchlorhydria
- Hypochlorhydria = low stomach acid production characterised by a fasting gastric pH above 3.0 (1.5–3.0 is considered normal).
- Achlorhydria = absence of stomach acid→gastric pH >7.0
- Hyperchlorhydria = a gastric pH <1.5, normally without consequences unless other conditions present; e.g., GORD.
Signs & symptoms of hypochlorhydria
Gas and bloating < 30 minutes after eating
Heartburn
Sensation of fullness
Foul smelling stools
Diarrhoea
Nausea after taking supplements
Food allergies
Brittle nails
Nutrient deficiencies that could result from hypochlorhydria
Iron
Zinc
Folate
B12
Implications of hypochlorhydria
- Reduced calcium absorption affecting bone density
- Reduced iron absorption => anaemia
- Protein putrification creating polyamides which are implicated in colorectal cancer
- Reduced protection from bacterial infection (H.pylori, SIBO)
- Poor pancreatic juice and bile flow
- Less intrinsic factor, reducing B12 absorption
What cancer is associated with hypochlorhydia?
Colorectal cancer
Natural approach to addressing hypochlorhydria
- Good food hygiene
- ACV (1 or 2tsp) diluted in a little water before meals
- Zinc and B6-rich foods
- Bitter foods - rocket, chickory, dandelion leaf, watercress
- Herbs that are cold and stimulate the vagus nerve - gentian, dandelion, goldenseal, barberry bark (berberine)
- ‘Warming bitters’ for excess cold/aggrevated agni or spleen Qi - fennel seed, cardamon, citrus peel, ginger
What is exocrine pancreatic insufficiency (EPI)?
A deficiency of exocrine pancreatic enzymes needed to maintain normal digestion resulting in nutrient (especially fat) malabsorption.
Common symptoms of exocrine pancreatic insufficiency?
- Bloating/belching/flatulence 1-2 hours after eating
- Steatorrhoea
- Drowsiness after meals
- Food intolerances
- Low zinc, B12 and folate absorption
- symptoms of IBS, candidiasis or SIBO
What is steatorrhea?
Excessive fat in faeces. Greasy or floating stools.
Name the causes of pancreatic insufficiency
- Chronic stress => Decreased vagus nerve activity
- Hypochlorhydria => Reduced CCK stimulation
- Chronic diseases - cyctic fibrosis, pancreatitis, obstructive pancreatic tumours, GI surgery, diabetes mellitus
- Damaged small intestinal wall (coeliac, IBD) - ↓ CCK production and pancreatic stimulation
- Xenobiotics can inactivate pancreatic enzymes
- Microbial interaction - SIBO can deconjugate pancreatic enzymes; dysbiosis
Naturopathic approach to pancreatic insufficiency
- Food hygiene
- Correct stomach acid levels
- Stimulate the vagus nerve to activate the parasympthetic nervous system
- Pancreatic enzyme replacement
How can the Vagus nerve be activated?
- Diaphragmatic breathing before meals
- Gargle, hum or sing
- Laughter and social enrichment
- Using bitters – gentian, artichoke and dandelion
What is Pancreatic Enzyme Replacement Therapy (PERT)?
- Animal derived enzymes (pork pancreatin) used in conventional medicine - amylase, lipase and protease
- Plant based and microbe-derived enzymes - better acid stability, broader range of enzymes, more variants, wider pH range
What is bile insufficiency?
A condition where bile synthesis and/or bile flow is compromised.
This affects the ability to digest, absorb and utilise fatty acids from the diet.
What are the signs & symptoms of bile insufficiency?
- Steatorrhea
- Intolerance to fatty foods/nausea when eaten
- Bloating, excess flatulence and cramping
What are the stool test indicators of bile insufficiency?
- Low/absent bile acids
- High faecal fats – indicate fat malabsorption
Bile insufficiency causes
- Low dietary fat intake
- Impaired liver function and obstructed bile ducts
- Obesity (↓ postprandial bile acid response)
- Oestrogen dominance
- Other GI conditions - Cholecystectomy, coeliac disease, crohn’s disease, chronic pancreatitis, SIBO
- Low HCl (↓ CCK and bile release)
What are the implications of long-term bile insufficiency?
- Deficiency of fat soluble nutrients (A, D, E, K, EFAs, beta-carotene)
- Hormone imbalances (poor oestrogen clearance)
- Hypercholesterolemia
- Compromised liver detox
- SIBO and dysbiosis (bile has antimicrobial and detoxifying effects, stimulates peristalsis)
- Gallstones or inflammation of the liver or pancreas
Natural approach to bile insufficiency?
- Adequate hydration
- Avoid processed foods, trans fats and refined sugar
- Chew slowly and thoroughly
- Diaphragmatic breathing (massages liver, ↑bile production)
- ↑ taurine (seaweed, seafood, chicken thighs) and choline foods (kidney beans, broccoli, eggs) or supplement
What is the mucosal barrier?
Mucus covering the entire GIT provides a thick barrier between the immune-stimulating contents of the outer world and the multitude of immune cells in the gut wall (1st line of defence)
What does mucus contain?
- Water 96-98%
- Glycoproteins called mucins
- IgA and anti-microbial peptides
How is the mucosal barrier implicated in ulcerative colitis?
In UC the inner mucosal lining becomes permeable, resulting in a large amount of bacteria in close contact with host tissue => inflammation
What can result from a disturbed mucosal barrier?
A bacterial translocation and the leakage of LPS-> metabolic endotoxemia
Outline how to support the mucosal barrier.
- Optimise dietary fibre
- A diet rich in polyphenols - feeds commensal bacteria (Akkermansia spp.) and protects the mucin lining; reduces inflammation (green tea, blueberries, pomegranates)
- Mucopolysaccharides - slippery elm, marshmallow root, liquorice, flaxseeds
- Fucoidans (polysaccharides) - seaweeds, algaes.
Why is adressing intestinal tight junction permeability important?
Intestinal tight junction disassembly contributes to ↑ LPS load and excessive immune reactions
How could intestinal tight junction integrity be supported?
- Glutamine (cabbage juice, spirulina, asparagus)
- Zinc carnosine
- Vitamin A
- N-Acetyl glucosamine
- Bone broth (rich in glycine)
Which diagnostic tests could confirm intestinal permeability?
- test for zonulin in stool
- Cyrex Labs Array 2 (serum antibodies)
What is secretory IgA?
Immunoglobulins residing in the mucosal lining and protects the intestinal epithelium from toxins and pathogenic microbes through a process called immune exclusion (promoting the clearance of antigens by blocking their access to epithelial receptors)
What can cause low secretory IgA ?
- Ongoing emotional/physical stress
- NSAIDs
- Antibiotics
How can secretory IgA secretion be supported?
- Address stress
- Saccharomyces boulardii
- Mushrooms (esp. medicinal)
- Vitamin A - transports SIgA over the mucosal lining
- Vitamin D3 - upregulates SIgA expression
- Polyphenols
- Chlorella
- Probiotics and prebiotics
- Echinacea spp
What is an elimination diet?
It is a diet where suspected foods are removed for a period of time and changes in symptoms monitored. Then the food is reintroduced and symptoms are monitored again to confirm sensitivity.
It is a cost effective way of identifying food allergies or intolerances.
What are the most probable foods causing an immune reaction?
gluten
dairy
corn and soy
eggs
nuts
beef
pork
yeast
citrus
nightshades
chocolate
coffee
How many days does stage 1 last in the elimination diet?
1-2. This is the detox stage.
How many days does stage 2 last in the elimination diet?
Days 3-14 (± 12 days).
This is the elimination stage.
If symptoms don’t improve by 3rd week, consider other possible triggers.
How many days does stage 3 last in the elimination diet?
Day 15 onwards.
This is the reintroduction stage. One food is reintroduced for 1-3 days and any symptoms monitored.
What are the stages of the 5R Protocol?
- Remove
- Replace
- Reinoculate
- Repair
- Rebalance
Describe Stage 1 of the 5R Protocol
What needs to be removed to support healthy GI function?
- Dietary irritants
- allergens/intolerances
- toxins
- unnecessary drugs
Which antimicrobial herbs are recommended in stage 1 of the 5R protocol?
- berberine
- garlic
- oregano
- uva ursi
Which anti-bacterials could be recommended in stage 1 of the 5R protocol?
oregano oil
berberine
garlic
neem
Which anti-parasitics are recommended in stage 1 of the 5R protocol?
black walnut hulls
wormwood
oregano
neem
clove buds
pumpkin seeds
What anti-fungals are recommended in stage 1 of the 5R protocol?
- caprylic acid
- grapefruit seed extract
- garlic
What anti-virals are recommended in stage 1 of the 5R protocol
olive leaf extract
nano silver
elderberry
In stage 2 of the 5R protocol, what needs to be replaced in support of healthy gut function?
Replenish digestive factors that may be lacking:
- Stomach acid secretions e.g., digestive bitters, HCI
- Pancreatic support e.g., bitters, pancreatic enzymes (PERT)
- Bile support e.g., choleretics / cholagogues
In stage 3 of the 5R protocol, how can beneficial bacteria be encouraged to flourish?
- Probiotic foods (cultrued vegetables, fermented foods and drinks)
- Probiotic supplements
- Prebiotic foods (foods rich in fructans, FOS and inulin)
What can be used to encourage the repair of the GI mucosa?
Epithelial & tight junction support:
- L-glutamine
- N-acetyl glucosamine
- quercetin
- zinc
- EFAs
- B vitamins
- Vitamin A
- collagen
- bone broth
- aloe vera
Mucous barrrier support:
- mucilage rich demulcent herbs (slippery elm, liquorice, marshmallow root, meadowsweet)
- fibre
- polyphenols
Increase SIgA and reduce inflammation:
- S. Boulardii
- Curcumin
What lifestyle changes are required to support gut healing?
- adressing stress
- good sleep hygiene
- regular exercise
What is dysbiosis?
Dysbiosis is an imbalance in the colonies of the bowel flora, leading to a potential disruption in both local and systemic health.
What causes dysbiosis?
- poor diet (highly processed, high refined carbs, ↓ fibre, ↓ polyphenols)
- intestinal/oral infections
- medications (antibiotics, antacids, OCP)
- chronic stress (= ↓ digestive secretions)
- low digestive secretions (HCI, bile)
- C-section, non-breastfed
- GI suregry and abdominal scar tissue
What is metabolic syndrome?
A combination of hypertension, insulin resistance and obesity.
What diseases can dysbiosis lead to?
- Atopic diseases
- Metabolic syndrome
-Associated with less Bifidobacteria and Akkermansia spp.
A diet rich in fibre and SCFA-producing bacteria (probiotics) has shown improvements in metabolic syndrome. - Colorectal Cancer
-Fibrous diets ↑ abundance of SCFA-producers and beneficial bacteria. - Neurodegenerative diseases
-Alzheimer’s, Parkinson’s and MND
What is metabolic endotoxaemia?
A subclinical rise in bacterial LPS in the blood, resulting in chronic low-grade inflammation.