stress, diet & disease
DESCRIPTION
This ppt covers the role of diet in various diseases and the effects of excessive stress and gives an overview of the optimal diet in various non-communicable diseases.Dr B Ravinder ReddyCare Hospital, Hyderabad, IndiaTRANSCRIPT
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Dr B Ravinder Reddy
Consultant Gastrointestinal & General Surgeon
Chief – Division of Clinical Nutrition
Care Hospitals
Hyderabad
MBBS, MS, FRCS (Edinburgh), FRCS (Glasgow)
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Greetings From Care Hospital, Hyderabadwww.carehospitals.com
Dept. of Surgical Gastroenterology & Division of Clinical Nutrition
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Diet & DiseaseNutrition is of interest to Everyone!
Impoverished
Under Nourished Pts Food Industry (FF&N)
Community Worker
Aesthetic & Cosmesis
Over Nourished
Scientists
Clinicians & Nutritionists
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Diet & Disease
Diet related diseases are spreading throughout the world across all age barriers, affecting many children as well as adults
Recent WHO statistics:
One Billion Adults Are Overweight!
300 Million Adults Are Obese!
Puska P et al. WHO strategy on diet, physical activity and health. Data and Statistics. Geneva: WHO; 2007
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Diabesity
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Front Cover
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Diet & Disease
In the past two decades our understanding of food and nutrients that promote good health has grown substantially
Owing to studies of molecular mechanisms of various diseases and the effects of various nutrients
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Diet
Will Not Keep The Stress Away!
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Diet Helps To CopeWith Stress
Lifestyle + Dietary Factors =
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Diet & Disease
A wrong diet can be a major cofactor in causing various diseases and
aggravating the various stressors!
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Diet & Disease
↑ Saturated Fats
↑ Refined CH
↑ Fibre
After eating a calorie dense diet
Is Very Common!
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Stress, Diet & Disease
i. Hyperglycemia
ii. Hypertriglyceridemia
iii. Increase in free radicals (pro-oxidant state)
iv. Increase in cytokines (pro-inflammatory state)
This diet is associated with
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Stress, Diet & Disease
This in turn is associated with:
i. Endothelial dysfunction
ii. Increase in free radicals
iii. Increase in inflammation
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Stress &Wrong Diet
Inflammation ROS, TNF, IL6, IL18
Obesity Visceral
InsulinResistance
Metabolic Syndrome Type 2 Diabetes Atherosclerosis
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Stress, Diet & DiseaseHigh Fat, Refined Carbohydrate Diet
Insulin Resistance / Hyperinsulinemia
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Diet & DiseaseHigh Fat, Refined Carbohydrate Diet
Insulin Resistance / Hyperinsulinemia
Blood
IGF
Testosterone Estradiol
Free IGF Estradiol
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Diet & DiseaseHigh Fat, Refined Carbohydrate Diet
Insulin Resistance / Hyperinsulinemia
Blood
IGF
Testosterone Estradiol
Free IGF Estradiol
Tumor Promotion
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Correct Diet & Stress Management Can Prevent:
Metabolic Syndrome
Diabetes Mellitus
Cardiovascular Disease
Cancer
Obesity
Dyslipidemia
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Diet & Disease: Preventive
Diabetes Mellitus: 91% reduction*
Cardiovascular Disease: 83% reduction*
Cancer: 71% reduction (colon cancer)*
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Stress, Diet & Disease: Therapeutic Roles
Acute illness (critically ill, pancreatitis, MOF)Chronic diseases (MS, DM, HBP, CVD,)Inflammatory bowel diseases (UC & CD)Irritable bowel syndromeAutoimmune diseasesCongenital & metabolic diseases (lactose
intolerance, cystic fibrosis etc)HIV
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Stress, Diet & Disease
Can Appropriate Diet Prevent or Treat All Diseases?
NO!
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Diet & Disease
A select few types of diets have shown
to be effective as per their respective claim*
*By scientific investigations & clinical trails
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Diet & Disease
Reduces Cardiovascular Diseases*
Reduces LDL Cholesterol
Provides SCFA
Avoids Constipation
Fibre (25 – 50 gms)
*The first health claim allowed by US Government
FDA, US Department of Health and Human ServicesFDA proposes health claim for oatmeal & oat bran. Jan 11, 1999
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Diet & Disease
Reduces Cardiovascular Diseases*
Reduces LDL Cholesterol & Triglycerides
Antioxidant, Antiproliferative, Antimigratory
Reduces Atherosclerosis
Phytoestrogens
Soy Protein(35 – 45 gms)
*Due to its amino acid profile which differs from animal protein
FDA, US Department of Health and Human ServicesFDA proposes health claim for soy protein & hear disease. Oct 26, 1999
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Diet & Disease
The best known nutrient, has been extensively studied
Ratified by US FDA & AHA to reduce CVD and for use of supplements of FO for CHD patients
Omega - 3 Fatty Acids
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Diet & Disease
Reduces inflammation by inhibiting cytokinesInhibits mitogensInhibits thrombosisInhibits antherosclerosisReduces TGIncreases NO productionIs beneficial in autoimmune diseases, IBD, RAForms important aspect of nervous system
1 to 2 gms
Omega - 3 Fatty Acids
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Diet & DiseaseWithout Omega - 3 Fatty Acids
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Diet & DiseaseOmega - 3 Fatty Acids
Connor WE. Importance of n-3 fatty acids in health & disease. Am J Clin Nutr 2000;71
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Diet & Disease
Probiotics
Are bacteria containing foods
Alter the bacterial composition of gut by adding bacteria
Prebiotics
Act as substrate to the gut bacteria
Alter the bacterial composition by changing the substrates
Synbiotics
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Diet & Disease
Immunity of the gut largely depends on type of micro-organisms
Alter the gut bacterial colonies
Reduce permeability of harmful micro-organisms
Synbiotics
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Diet & Disease
Strengthen intestinal immunity through IgA & inflammatory responses
Decrease levels of enzymes, mutagens & 20 bile salts, thereby reducing the incidence of colon cancer
Synbiotics
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Diet & Disease
Produce SCFA
SCFA reduce pH of colon, increase proliferation of normal epithelium, suppressing abnormal cells, thereby reducing incidence of cancer
SCFA also help in absorption of iron
Synbiotics
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Diet & Disease
All these benefits are not JUST due to replacing the bacteria…
Recent evidence suggests that it is the secondary products* produced by these probiotics that are responsible for the beneficial bioactivity
Synbiotics
*SCFA, Short Bioactive Peptides (cleaved from milk & other proteins)
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Alcohol
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Alcohol
Beneficial effects within 2 weeks!
“Moderate alcohol”:
Men - 2 drinks per day
Women – 1 drink per day
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Alcohol
One Drink?
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Alcohol
Beer - 12 ounces* ( 360 mls)
Wine - 5 ounces (150 mls)
Spirits - 1.5 ounces (45 mls)
2005 Dietary Guidelines Committee report. U.S. Department of Health & Human Services. http://www.health.gov/Dietary Guidelines/dga2005/report.
“One Drink*” * 1 ounce = 30 mls
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Alcohol
Benefits
Increases HDL
Reduces CVD
Anti-thrombotic (reduces fibrinogen & TPA)
Side Effects
1 gram = 7 calories
1 drink = 21 grams
30g/day Triglycerides
Cardiomyopathy, HBP
CLD, AP, GERD
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Nutrigenomics
This involves application of evidence based nutrition as per the person’s genetic makeup!
Individualised nutritional intervention rather than the traditional or general approach to maintain good health appears to be more appropriate
“Personalised Nutrition”
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Nutrigenomics
Nutrigenomics is promising!
Is still in the early stages
In due course of time, a more accurate and effective recommendations can be tailor made on individual basis!
“Personalised Nutrition”
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Let thy food be thy medicine…And the medicine be thy food!
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Physical Activity, High Fibre, Low Fat Stress Reduction Methods
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Diet & Disease9 to 11 servings per day
25 gms dietary fibre
Substituting soy for animal protein
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Diet & DiseaseFish 2 times a week
Nuts 1 ounce / day
Moderate alcohol 1-2 drinks / day
Regular Physical Activity Lifestyle Changes
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Stress, Diet & DiseaseStress Reduction Methods
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Only
Medicines Without Nutrition & Stress Reduction
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“Futulis” Attempt of Danaides
We Will Also Be Confronted With Such Futile Situations
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“Futulis” Attempt of Danaides
If We Do Not Control Our Stress & Supplement Our Diet With Correct Nutrients!
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StressIs the price we pay for becoming more civilised and sophisticated!!
It is inevitable!!
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PrescriptionsLifestyle, Stress ↓ & Diet
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References
www.teachhealth.com
www.residentassistant.com