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Transcript
Food and Mood Amy Jamieson
Amy Jamieson ­­ Petonic, Employee Manager CCHS Western Market
CCHS Western Market What Is A Food Craving? Intense desire to eat a particular food n n Approx 60% of people experience food cravings every day n n Frequently reported food craving for women
women …
… CHOCOLATE
CHOCOLATE n n
Foods Craved by College Students FOOD
FOOD FEMALES (%) MALES (%) Chocolate Pizza 39 7 14 15 Salty Foods 8 3 Ice Cream 6 2 Sweets and Desserts Meat and chicken Bread and pasta 6 4 3 5 3 2 The Neurotransmitter Connection Nerve cells contain tiny sacs at the end of axons filled with chemicals 4Neurotransmitters (NT) n n NT pass messages from one nerve to another
another n n
How Food Affects How You Feel Neurotransmitters: (NT) amino acids and a fat like substance called choline n n If deficient in one of these chemicals, you experience changes in mood, appetite or cognitive status
appetite or cognitive status n n
How Food Affects How You Feel Vitamins and minerals (B, C, E, Fe, Sel, Mg) assist NT activity and some protect NT from damage n n If diet is lacking or in small amounts, this may lead to mood disturbances
this may lead to mood disturbances n n
How Food Affects How You Feel NT become more/less active depending on diet n n This activity can stimulate imbalances, lead to depression, irritability, & mood swings
irritability, & mood swings n n
How food Affects How you Feel Protein, zinc, Vit B6, B12, iodine, & folic acid are essential for normal development of nervous system n n Insufficient intake>> permanent damage, may alter personality & behavior
behavior n n
How Food Affects How You Feel Food additives, MSG and tyramine (aged cheeses) can affect brain activity & result in mood changes n n Other additives change the structure or block the neurotransmitter
or block the neurotransmitter n n
Neurotransmitters Regulate many body functions Ø Ø Nerve transmission & memory Ø Ø Appetite & Mental function Ø Ø Movement, wake
Movement, wake ­­ sleep cycle Ø Ø MOOD
MOOD n n
““ Big 4
Big 4 ” Diet Made Chemicals 1. Serotonin: Mood Regulator 2. Dopamine 3. Norepinephrine 4. Acetylcholine
4. Acetylcholine Serotonin NT w/ most significant impact on diet n n Made in the brain from amino acid tryptophan along with Vitamin B6, B12 and folic acid
B12 and folic acid n n
Serotonin Serotonin levels rise & fall based on diet & Vitamin intake n n High levels 1. Boost mood/curb cravings 2. Increase pain tolerance 3. Help provide restful sleep
3. Help provide restful sleep n n
Serotonin n n
Low levels 1. Food cravings 2. Insomnia 3. Depression 4. Increased pain sensitivity 5. Aggressive behavior 6. Poor body temperature regulation
6. Poor body temperature regulation Diet and Serotonin Levels Sugar and Refined Starches Ø Ø Milled: contains only endosperm Ø Ø White bread, white rice, pasta, potato Ø Ø Sweets: cookies, cakes, pies Whole grains Ø Ø Contain bran, germ, endosperm Ø Ø Whole wheat bread, pasta, crackers, brown rice, and oatmeal
brown rice, and oatmeal Sugars and Refined Starches n n
n n
n n
Cause serotonin levels to rise Blood sugar levels to rise & fall very quickly May cause blood sugars to go too low, risk hypoglycemia
risk hypoglycemia Sugars and Refined Starches Trigger quick release of insulin that lowers blood levels of amino acids except tryptophan n n Tryptophan stays in the blood and can enter the brain.
can enter the brain. n n
Whole grain starches n n
n n
Trigger a slow release of insulin that lowers blood levels of most amino acids except tryptophan Serotonin levels rise gradually, and blood sugar levels remain stable
stable Protein
Protein ­­ Serotonin Connection Eat protein
Eat protein ­­ rich meal, blood becomes flooded with tryptophan & other aa n n Tryptophan gets crowded out, & only a small amount gets through the blood
blood ­­ brain barrier n n Serotonin levels do not rise much after a meal that has protein, even if that food is high in tryptophan
that food is high in tryptophan n n
Protein
Protein ­­ Serotonin Connection Consuming a high protein meal lowers brain tryptophan & serotonin levels n n Eating a high carbohydrate snack has the OPPOSITE effect
has the OPPOSITE effect n n
Effect of High Protein Meal Person consumes a protein­rich snack or meal. Person feels depressed, irritable, and/or craves a Blood levels of all amino carbohydrate­rich snack
acids rise (including tryptophan) All blood and amino acids compete for entry into the brain. Only moderate amounts of seratonin are made and stored. Relatively low amounts of tryptophan enter the brain Effect of High Carbohydrate Meal Person consumes carb rich snack /meal. Pancreas releases insulin Blood levels of all aa, except tryptophan ò when aa go into the muscle cells Mood improves and carbohydrate cravings reduced
Tryptophan, with B6, B12 and folic acid converted to serotonin Tryptophan levels ñ & enter the brain Vitamin B6 and Serotonin Levels Vitamin B6: n n Assists with manufacturing serotonin n n A deficiency of B6 affects mood & cravings n n Good sources: chicken, fish, pork, eggs, banana
eggs, banana Estrogen, Omega 3
Estrogen, Omega 3 ’’ s & Serotonin Estrogen: n n May inhibit Vitamin B6 status & òbrain serotonin levels: PMS Fat: n n Omega – 3 fatty acids in fish oil ñserotonin levels
serotonin levels Take Home Message: Serotonin Choose whole grains most often n n Consume whole grains with a lean protein source (tuna sand on wwt) n n Choose foods high in omega 3 fatty acids and fatty fish ≥
≥ 2x per week
2x per week n n
Dopamine and Norepinephrine Made from aa tyrosine with folic acid, magnesium, & Vit B12 n n Dopamine & NE stimulate CNS n ñ ñ energy, improve concentration, alertness & performance
alertness & performance n n
The Neurotransmitter Connection A deficiency of norepinephrine (NE) results in depression n n Too much nor epinephrine = mania
mania n n
Tryptophan and Tyrosine Tryptophan & tyrosine are working opposite of each other n n To increase tryptophan/serotonin levels, tyrosine must be low n n To increase tyrosine & assistant neurotransmitters, tryptophan levels are moderate to low
are moderate to low n n
Tyrosine Levels To ñ ñ tyrosine levels, consume grilled chicken, fish or beef n n Improvement in mood within 2
mood within 2 ­­ 3 hours
hours n n
Acetylcholine and Memory Choline is UNLIKE amino acids: no other competitors to enter the brain n n Choline is converted to the neurotransmitter acetylcholine
neurotransmitter acetylcholine n n
Acetylcholine Low levels of acetylcholine are associated with aging & memory loss n n Increasing choline levels may be a possible treatment for Alzheimer
possible treatment for Alzheimer ’’ s disease
disease n n
Acetylcholine Food sources to ñincrease brain concentrations of choline n n Wheat germ n n Eggs
Eggs n n
Do You Crave Carbohydrates? 97% of people find it hard to say ““ no
no ” to sweet treats n n Cravings are not always a sign of lack of willpower: It could be a biological imbalance
imbalance n n
Carbohydrate Cravings Biological cravings n n When? Mid
When? Mid ­­ afternoon & continue until late into the evening n n Cravings increase with ñlevels of stress, depression, or premenstrual
stress, depression, or premenstrual n n
Biological Cravings & Serotonin Cravings may occur due to an imbalance of serotonin n n Chronic dieters, battling obesity, & carbohydrate cravers have lower levels of serotonin than lean people who prefer high protein snacks
who prefer high protein snacks n n
Are carbohydrates evil? People in wt loss program in SC who ate ñcarbs tend to be ò ò anxious & ò ò depressed n n Carb cravers 4desserts, donuts, pastries, breads & pasta to ñenergy, òhunger & alleviate depression & stress from ò ò serotonin levels
serotonin levels n n
Carbohydrate Cravings Carbs
Carbs ñ ñ serotonin levels, curb cravings, & ñenergy levels n n Carb sensitive people become conditioned to crave high carb foods when tired, depressed or anxious n n OK to indulge sometimes, but if often.. Can lead to malnutrition and wt gain
gain n n
How Do I Treat My Carbohydrate Cravings? Limit refined sugar to 10% kcals n n Try some whole grain snacks: whole grain crackers with low fat cheese n n Be patient
Be patient … may take 2
may take 2 ­­ 3 weeks to alter body chemistry
alter body chemistry n n
Our love for fat Even though we feel that we crave sugar, research shows that we crave sugar & fat n n Due to the texture, flavor, & aroma n n Think about how you feel when you hear these words: a croissant vs. orange carrot stick vs. potato chips
carrot stick vs. potato chips n n
Fat for Survival Several hours of fasting or dieting releases free fatty acids into the blood 4hypothalamus 4Galanin n n Galanin 4fat containing foods n n Galanin ñ ñ the day proceeds and ñ ñ
desire fatty foods in mid
desire fatty foods in mid ­­ after and pm
after and pm n n
The Galanin Connection As galanin ñ ñ metabolism slows = weight gain 44 44 why obese people prefer fattier foods, although they consume same kcals as lean people n n Galanin levels ñ ñ when estrogen levels are ñ, which 4PMS cravings
PMS cravings n n
Fad Diets and Galanin Very strict or òK
K cal diets signal the appetite control center in hypothalamus to ñ ñ galanin levels n n Increased galanin triggers craving for fat, & may contribute to weight gain
fat, & may contribute to weight gain n n
Stress and Galanin levels Stress hormones (NE and corticosterone) secreted from the adrenal gland during stress n n These ñgalanin levels, which ñcravings for high fat foods, overeating & weight ñ
n n Treatment: ñ ñ physical activity to boost endorphins & reduce stress hormones
endorphins & reduce stress hormones n n
Research on Galanin Researchers working on diet pills to turn OFF galanin production n n Should ò ò cravings for cheeseburgers, fries, brownies, donuts without affecting our healthy appetites
affecting our healthy appetites n n
True chocoholics? n n
What makes chocolate appealing? • Sugar stimulates serotonin • Sweet taste releases endorphins • Fat improves galanin levels • Drug like constituents n Anandamines, caffeine, PEA, mag
mag Chemicals in Chocolate n n
Chocolate contains: • Theobromine & caffeine: act like stimulant › mental lift mental lift • Tyramine & phenylethylamine: ñ ñ BP & HR amphetamine • Anandamides: mimics effects cannabis
cannabis Emotions and Chocolate 37 healthy, normal wt females n n Consume chocolate bar, apple or nothing & rated subjective state at 5, 30, 60, & 90 min n n Chocolate & apple ò ò hunger, but effects of chocolate were stronger n n Chocolate: Joy or Guilt n n
(Macht, Appetite, 2006, 46:332
(Macht, Appetite, 2006, 46:332 ­­ 6.)
6.) Emotions and Chocolate N= 48 normal wt males given choc 2 or 4 hrs after viewing film clips
hrs after viewing film clips 4 4 Anger, fear, sadness & joy n n Motivation to eat chocolate ñ ñ after 8 h n ñ ñ tendency eat ñ ñ choc w/ joy, tasted better & more stimulating than during sadness (p 30.001) n n
(Macht, Appetite, 2002, 39: 147­ 58)
(Macht, Appetite, 2002, 39: 147 ­58) Is Chocolate an Effective Anti
Anti ­­ depressant? 2
2 ­­ 3 grams of phenylethylamine needed for anti
anti ­­ depressant effect n n 50 gram chocolate bar (1.67 oz) has only 1/3 of a milligram of phenylethylamine n n Some chemicals in chocolate other foods in ñdoses. Tyramine ñ ñ in cheese, yeast extract & pickled herring, & not craved as often
often n n
Chocolate and Hunger State Study N= 29 (17 cravers, 12 non
N= 29 (17 cravers, 12 non ­­ cravers) n n Participants trained to eat chocolate either when hungry or full over 2 wks n n Cravings ñin those trained to eat chocolate when hungry n n Cravings reduced in those that ate chocolate only when full n n
(Gibson, Appetite, 1999, 32: (219
(Gibson, Appetite, 1999, 32: (219 ­­ 40)
40) Tips for Chocoholics Small amount of dark (
Small amount of dark ( 470%) n n Chocolate with meals n n Buy minis n n Daily magnesium supplement (300
Daily magnesium supplement (300 ­ 500mg) has been reported to curb cravings
cravings n n
Salt Cravings 1. Female: 2 wks prior to cycle: poss effect of estrogen on vasopressin, & aldosterone
aldosterone 4fluid retention n Water wt ñ n
ñ may turn on salt cravings to help maintain normal salt concentrations in body
salt concentrations in body Salt Cravings 2. ò ò Ca intake: Monell Chemical Center report people w ò ò Ca intakes most prone to crave salty foods n n Lab animals don
Lab animals don ’’ t crave salt but become salt lovers when fed Ca poor diets
diets Salt Cravings 3. Body
3. Body ’’ s memory in womb
s memory in womb 4 4 cravings for salty foods when preg 4. Crunchy textures may satisfy need to bite down & relieve stress or anger
bite down & relieve stress or anger Fishing For Ways to Improve Your Mood? As fish consumption ñ, depression rates ò ò (Japan & Taiwan consume ññamts omega 3 FA &
omega 3 FA & ¯ depres
depres sion) n n N. America, Europe, & New Zealand: ò ò
consumption Omega 3 FA: ñdepression n n Preg & lactation ñ ñ demands for omega 3 n n Post partum depression rates òas women ñconsumption of fish n n
(Melanson 2007 Am J Life Med, 2007)
(Melanson 2007 Am J Life Med, 2007) Omega 3 Fatty Acids Specific Omega 3: DHA comprises 50% of total fats in nerve tissue n ò ò levels omega 3
levels omega 3 ’’ s in nervous system may ñ ñ likelihood depression n n Fats may affect mood by regulating serotonin: low serotonin = increased rates of depression & suicide
rates of depression & suicide n n
Fish and Mental Health New Zealand Health Survey n n 4,644 adults ≥
≥ 15 yrs n n No fish, or some fish at any frequency n n Difference for mean scores: some fish 8.2, no fish: 7.5 n n Significant relationship between fish & mental health 4PUFA mood stabilizers n n
(Silvers, Pub Heal Nutr, 2002,5: 427­ 31)
(Silvers, Pub Heal Nutr, 2002,5: 427 ­31) Fish and the Gray Matter Interviewed 55 healthy adults to determine average omega 3 intake n n Gray matter volume: High res MRI n ñ ñ levels omega 3 higher v
higher v olumes in areas of brain w emotional arousal & regulation n n Areas linked with mood & behavior n n
(Tufts Health and Nutrition Letter June 2007)
(Tufts Health and Nutrition Letter June 2007) Good Sources of Omega 3 FA 1. 2. 3. 4. 5. 6. Atlantic salmon Flax (1
Flax (1 ­­ 3 g/day) Canola Oil Shrimp Halibut Walnuts
Walnuts Selenium and Mood People lacking selenium show signs of anxiety, irritability, & depression n n Deficiency corrected: mood improves n n Rx: 55 micrograms/day (Tox 250mcg) n n Found in brazil nuts, seafood, lean beef or chicken & mushrooms
beef or chicken & mushrooms n n
Feel Good Diet 1. Make slow, gradual changes 2. Choose whole grain starches > refined sugars (3 oz equiv/day) 3. Limit refined sugars to 10% kcals 4. Grains and lean protein 5. Eat more fatty fish, nuts & flax
5. Eat more fatty fish, nuts & flax Feel Good Diet 5. Dark chocolate with meals 6. Add Wheat germ to ñ ñ choline 7. MVI if deficient, Ca, Selenium, or Mg for cravings 8. Maintain physical activity to increase endorphins
increase endorphins Questions???? Enjoy the rest of your day!
Enjoy the rest of your day!