Exercise is capable of turning white fat into more efficient brown fat People

Exercise is capable of turning white fat into more

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Exercise is capable of turning white fat into more efficient brown fat ° People born with very efficient bodies tend to have low basal metabolic rates since it doesn’t take much energy to sustain life in their body Greater chance of obesity As weight , basal metabolic rate & it ends up so that the basal metabolic rate is similar in both obese & non-obese individuals
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o In a way, it may show that certain people are preprogrammed to gain weight in order to match their basal metabolic rate o Setpoint theory : the body having in mind (not consciously) the weight that it is happy with A way to fight this: reducing calorie intake But plateaus since BMR (basal metabolic rate) will reduce as well Add exercise Increases BMR Real value of exercise is that it increases the BMR even when you’re not exercising exercise, cals burned when not exercising as well ° ° Lesson 3 (Weight Control II) : ° Why so much obesity in NA? Excess of food produced: equivalent to ~3900 cals/person/day A lot of the excess cals come from soft drinks o Sugar is a major player Sucrose made up of glucose & fructose Glucose & fructose not metabolized the same way Harder to use fructose for energy o Stores in liver & fat Use of HFCS (high fructose corn syrup) has Endocannabinoids o Similar in name to cannabis, which contains a compound similar to a compound in our bodies called “anandamide” o Anandamide named after Sanskrit term “bliss” “Ananda” Amide o THC (tetrahydrocannabinol) is similar to anandamide o Involved in pleasure Relevancy: Anandamide produced from linoleic acid (polyunsaturated fat) Linoleic acid is very common in NA diet Soy oil high in linoleic acid Soy oil is being used more often in foods
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Research trying to make soy oil into high oleic acid (low linoleic acid) through genetic modification to eliminate trans fats Oleic acid is a monounsaturated fat, less prone to oxidation Study done in rodents: fed diet high in linoleic acid & low in linoleic acid. Results show that rodents with low linoleic acid diet ate less ° ° Obesogens Refers to chemicals that make us fat & increase our appetite o Phthalates Added to various plastics in order to make them soft and pliable. Used in a large variety of consumer products Used to make coatings on pills Used to make hoses of all kinds Used to make food packaging material Some exist in our system Men with abdominal obesity & insulin resistance are more likely to have high [phthalate metabolite] in their urine Doesn’t mean cause & effect May mean that they eat more fast food since fatty foods wrapped in plastics will absorb phthalates from the packaging material (so a marker of the amount of fat consumed, not that they cause weight gain) o Endocrine disruptors: hormone-like chemicals o Bisphenol A o Some sunscreen components ° ° Diet schemes N. Americans spend over $50 bill / year on various diet programs Since 1920s, ~23000 different kinds of diets published Grapefruit extract o Doesn’t specify what exactly the compound is o
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