Hi there! Tthis is Dr. Dave Heber, Founding
Director of the UCLA Center for Human Nutritionand I'm talking you today
about diets that don't work. The nextone I want to talk about is the Ketone
Diet or as it's known sometimes theketogenic diet. Now ketones are
substances broken down from fatActually it happens while you're asleep and it happens during fasting. It's part of theadaptation to fasting.
These things are soluble in your bloodstream, so they cancarry energy around your body-- unlike fats, which are not soluble andhave to be carried on proteins so these ketones go up about 300 fold over thefirst six weeks or so of starvation. And they even come out in your breathand create a fruity smell to your breath. However they have little effect onappetite. The original theory was that they would reduce hunger -- actually thatis not true. Now the other part of this is there are sticks that you can put inyour urine, which will turn blue when your ketones are high.
Now in order tokeep your ketones high you have to eat less than 100 grams of carbohydrate perday which means that these diets are only 5% carbohydrate and about 75% fatwith little amounts of protein - maybe 10 to 20 percent. So you're going to eat alot of bacon and you're gonna eat a lot of meat. You're getting butter and you'regoing to eat oils. No effect on weight whatsoeve. There have been someinteresting studies on epilepsy and other brain disorders.
However, for weightloss, this diet doesn't work. This is Dr. Dave Heber and we'll see you next time. The Ketogenic or Keto diet is s low-carb, high-fat diet that depends on fatty acids being released from fat to form ketone in the liver. These ketones are a major energy source during starvation and is believed to control hunger. Is this a valid proposal for weight loss? Learn more: http://ucla.in/2gmx8kj
These things are soluble in your bloodstream, so they cancarry energy around your body-- unlike fats, which are not soluble andhave to be carried on proteins so these ketones go up about 300 fold over thefirst six weeks or so of starvation. And they even come out in your breathand create a fruity smell to your breath. However they have little effect onappetite. The original theory was that they would reduce hunger -- actually thatis not true. Now the other part of this is there are sticks that you can put inyour urine, which will turn blue when your ketones are high.
Now in order tokeep your ketones high you have to eat less than 100 grams of carbohydrate perday which means that these diets are only 5% carbohydrate and about 75% fatwith little amounts of protein - maybe 10 to 20 percent. So you're going to eat alot of bacon and you're gonna eat a lot of meat. You're getting butter and you'regoing to eat oils. No effect on weight whatsoeve. There have been someinteresting studies on epilepsy and other brain disorders.
However, for weightloss, this diet doesn't work. This is Dr. Dave Heber and we'll see you next time. The Ketogenic or Keto diet is s low-carb, high-fat diet that depends on fatty acids being released from fat to form ketone in the liver. These ketones are a major energy source during starvation and is believed to control hunger. Is this a valid proposal for weight loss? Learn more: http://ucla.in/2gmx8kj
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