How Carbs Turn to Fat: Weight Loss Secret- Thomas DeLauer… Ketosis, Carbs, Fats, it’s All Here: http://www.ThomasDeLauer.com
How do Carbs Convert to Fat? When we eat carbs:
Carbs break down into smaller units, glucose, that is used for fuel by the body
Excess carbs are then stored in the liver and muscle as glycogen
Once our immediate energy needs and glycogen stores are full, the excess is stored as fat through a process called de novo lipogenesis (DNL)
DNL literally means the creation of fats through non-fat sources
Glucose is converted into fatty acids
Most fats stored in the body are stored in the form of triglycerides
Triglycerides are three fatty acids chains bound to a glycerol molecule
Fairly inefficient for the body, thus certain conditions upregulate DNL
Poor diet for a long period (excess calories, simple carbs, high alcohol consumption, etc)
Very high intake of carbs over a few days
Less than 10% fat diet
Why do we store extra carbs as fat? Fatty acids are used for energy in times of food storage or when we are in ketosis (using fats for fuel) Fatty acids also function as important signaling molecules in the body. Fats are more energy-dense than carbs and thus best for a stored form of energy. The problem in our current day culture is that we tend to consume too much food, especially in the form of simple carbohydrates, like white bread and sugar, without having periods of famine where we burn stored lipids for energy. We can also of course get lipids for the diet, and triglycerides are then stored from the fats that we eat. Thus there are different kinds of triglycerides. There is evidence that the lipids produced from DNL may differ in important ways from those we get directly from the diet. This may have an impact on disease states such as type-2 diabetes, cardiovascular disease and obesity.
When DNL is broken down, palmitate forms. Palmitate has been tied to an increased production of reactive oxygen species and inflammatory cytokines. High triglyceride levels are correlated with disease, with simple carbs such as alcohol and white sugar, as well as trans-fats and saturated fats found in things such as red meat and margarine, are found to raise triglyceride levels more so than the fats found in nuts, olive oil and avocados. Triglycerides and cholesterol cannot be transported through the blood as is and are thus packaged into a lipoprotein by the liver, where they are combined with protein.
Too high levels of triglycerides have been linked to arterial plaque buildup, leading to atherosclerosis. Those with high triglycerides usually have higher LDL.
1. Adipose tissue de novo lipogenesis
2. How are carbohydrates converted into fat deposits?
3. What are triglycerides?