The Wine Diet (healthy eating and drinking) - Prof. Alan Crozier

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Information about The Wine Diet (healthy eating and drinking) - Prof. Alan Crozier

Published on February 21, 2008

Author: epicyclops

Source: slideshare.net

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Prof Alan Crozier, Professor of Plant Biochemistry and Human Nutrition, University of Glasgow speaks to the Glasgow Southern Medical Society on the benefits of a diet rich in phytoantioxidants.

Healthy Eating & Drinking Alan Crozier Institute of Biomedical and Life Sciences University of Glasgow Scotland, UK Professor of Plant Biochemistry and Human Nutrition

FRUITS AND VEGETABLES CONTAIN: minerals, fibre, vitamins and phytochemicals

Common C 6 -C 3 -C 6 Flavonoid Structures

Structures of Common Dietary Phenolics O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O H O H O O H O H E l l a g i c a c i d S a n g u i i n H - 1 0 ( E l l a g i t a n n i n - h y d r o l y s a b l e t a n n i n )‏ H O H O H O O H H O O H H O O H O H H O H O O H O H O H O H H O H O H O O H H O O H O H O H O H O H H O O H O H C O O H G a l l i c a c i d O H O H H O H O H O O H t r a n s - R e s v e r a t r o l - 3 - O - g l u c o s i d e ( S t i l b e n e )‏ O H O H O H H O O C O H O H 5 - O - C a f f e o y l q u i n i c a c i d ( c h l o r o g e n i c a c i d )‏ ( H y d r o x y c i n n m a t e )‏ H O H O O H O H H O H O O H O H P r o c y a n i d i n t r i m e r C 2 ( C o n d e n s e d t a n n i n )‏ O H O H H O H O O H O H O H E U T U

 

Fruit and Vegetable Consumption in the U.K. (2004)‏ Only 14% of men and 27% of women in the U.K. consume five a day Office of National Statistics, 2004

Only 14% of men and 27% of women in the U.K. consume five a day

Healthy Supplements to a 5-a-Day Diet Red wine - lots of phenolics, 3 glasses per day because of alcohol Green tea - rich in flavan-3-ol monomers Cocoa - rich in flavan-3-ol monomers and procyanidins - problem - fats Fruit juices - varied phenolics - sugar limits intake Nuts with the skin - contain vitamin E, flavonoids and fats (salt)‏ Black tea - lots of thearubigins - with or without milk ? Berries - raspberries, blueberries, blackberries, strawberries etc

UK UK UK UK UK Mal Two-three pieces of chocolate per day !

Theobroma cacao, otherwise known as cocoa Seeds from the pods are roasted and used to make cocoa and chocolate Chocolate and cocoa are rich sources of flavan-3-ol monomers (catechins) and polymers (procyanidins) which are strong antioxidants but also contain unsaturated fats

Cocoa and chocolate contain monomeric and polymeric flavan-3-ols Protective Effects of Flavan-3-ol-Rich Cocoa Improves vascular health reduced platelet aggregation enhanced vasodilation - reduced blood pressure Kuna Indians San Blas Island 4 cups cocoa per day with age minimal increase in blood pressure reduced hypertension and other CDVs Kuna Indians Panama City 6-fold lower cocoa intake with age increased in blood pressure hypertension and other CDVs Schroeter et al. PNAS 103, 1024-9, 2006 Zutphen Study Reduced blood pressure 50% decreased risk of CVD

0 5 10 15 20 25 30 milk (20 - 34% cocoa)‏ dark (70 - 85% cocoa )‏ cocoa (100%)‏ 35 procyanidin content (µmol/g)‏ Procyanidin Content Different Types of Chocolate (Roger Corder)‏

 

  Red Wines, Procyanidins and Inhibition of Endothelin-1 Synthesis Corder et al. Nature, 30 November 2006

  French 1999 Census - Regional Male Longevity Corder et al. Nature, 30 November 2006

In Midi-Pyrenees, South West France………. Red wines, mainly for local consumption, made from Tannat grapes – small, lots of seeds, and, therefore, rich in procyanidins Traditional methods of wine making, 28 day vinification, so seeds extracted and Madiran wine contains high levels of procyanidins Big regional variations in CHD in France. In Midi-Pyrenees, 1999 French census shows 33% more men over 75 years of age and more than double the number over 90 years of age than the French average Similar evidence of longevity in Nuoro province of Sardinia where procyanidin-rich wines are produced, mainly for local consumption

“ The potential health benefits of tea consumption are well known ”

Young first flush tea ( Camellia sinensis ) shoots ready for plucking

Green Tea Flavan-3-ol Structures

O O O H O H O H O R T h e a r u b i g i n n Thearubigins are complex polymers of catechins with unknown structure Principle phenolics in black tea

Major Phenolic Compounds in Green and Black Tea infusions

Fruit and Vegetable Juices……………. A convenient supplement to 5-a-day F & V or a busy lifestyle and less than 5-a-day Fruit and vegetable drinks may be as effective as consumption of fruit and vegetables in relation to a reduced risk of chronic disease Ruxton et al. Int. J. Food Sci. Nutr. 2006 Kame Project Long-term consumption of fruit and vegetable juices can reduce the incidence of Alzheimer’s disease by 75% Dia et al. Am. J. Medicine 119 , 751-9, 2006 Which juices?.....

UK a UK UK UK UK Antioxidant Activity of Commercial Fruit Juices

UK a UK Phenolic Compounds in UK Commercial Fruit Juices

Combination of Fruit Juices Providing High Antioxidants and Diversity of Phenolic Compounds Purple grape - flavonols, hydroxycinnmates, procyanidins, anthocyanins Cranberry - flavonols, procyanidins Citrus - flavanones Cloudy apple - hydroxycinnamates, flavan-3-ol monomers, procyanidins, hydroxychalcones Pomegranate ? - anthocyanins, ellagitannins

To what extent are the various dietary phenolics bioavailable ? What is bioavailability ?

Possible Routes for Consumed Dietary Phenolics in Humans Dietary phenolics Tissues Small intestine LIVER Colon bile Kidney General circulation Urine Faeces Ileostomy bag

The fate of strawberry phenolics in humans with a colon Human volunteers ingested 200 g of strawberries with paracetamol and lactulose Plasma and urine collected at several time points over a 24 h period All samples analysed by HPLC-PDA-MS 2 to determine the fate of anthocyanins

The fate of strawberry anthocyanins in humans with a colon - with and without cream

Pelargonidin-3-Glucuronide In Plasma After Ingestion of 200 g of Strawberries 50 100 150 200 250 300 0 5 10 15 20 25 Time (h)‏ nmol/L With 100 mL double cream Without cream

Absorption and Metabolism of Strawberry and Blackberry Anthocyanins (1% of intake)‏

Colonic degradation of anthocyanins (Aura et al., Eur J Nutr 44 , 133-142, 2005)‏

Flavonol Glycosides 200 g fried onions - 257  moles 300 mL tomato juice- 176  moles

Quercetin-4-Glucoside Metabolites In Plasma A 0 200 400 600 800 0 1 2 3 4 5 6 Time (h)‏ Conc. nmoles/L Quercetin-3'-sulphate Quercetin-3-glucuronide B 25 50 75 100 125 0 1 2 3 4 5 6 Time (h)‏ Conc. nmoles/L 0 Quercetin glucuronide sulphate Isorhamnetin-3-glucuronide Quercetin diglucuronide

Flavonol Glycosides 200 g fried onions - 257  moles 300 mL tomato juice- 176  moles

0 2 4 6 8 10 12 14 16 0 1 2 3 4 5 6 7 8 Time (h)‏ Concentration (nmoles/L)‏ Quercetin-3-glucuronide Isorhamnetin-3-glucuronide Quercetin-3-Rutinoside Metabolites In Plasma

Fate of Rutin In The Large Intestine

Possible Routes for Consumed Dietary Phenolics in Humans Dietary phenolics Tissues Small intestine LIVER Colon bile Kidney General circulation Urine Faeces Ileostomy bag

Eat five 80 g portions of different fruits and vegetables per day Variety rather than excess appears to be the key to a health diet As well as the F&V, drink fruit juices, cocoa, tea and, in moderation, coffee and red wine, and eat a little dark chocolate and some nuts Supplements, such as quercetin antioxidant tablets, increase the possibility of excessive intakes. Would you or could you eat 1+ kg of onions per day ? Meanwhile

Eat five 80 g portions of different fruits and vegetables per day

Variety rather than excess appears to be the key to a health diet

As well as the F&V,

drink fruit juices, cocoa, tea

and, in moderation, coffee and red wine,

and eat a little dark chocolate and some nuts

Supplements, such as quercetin antioxidant tablets,

increase the possibility of excessive intakes.

Would you or could you eat 1+ kg of onions per day ?

 

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