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Dietary fat is what is stored as bodily fat, when a caloric excess is consumed. And that for dietary carbohydrates to be stored as fat (which requires conversion through the process called ‘de novo lipogenesis’ the carbohydrate portion of one’s diet alone must approach or exceed one’s TDEE(total daily energy expenditure).
"Abstract
The enzymatic pathway for converting dietary carbohydrate (CHO) into fat, or de novo lipogenesis (DNL), is present in humans, whereas the capacity to convert fats into CHO does not exist. Here, the quantitative importance of DNL in humans is reviewed, focusing on the response to increased intake of dietary CHO. Eucaloric replacement of dietary fat by CHO does not induce hepatic DNL to any substantial degree. Similarly, addition of CHO to a mixed diet does not increase hepatic DNL to quantitatively important levels, as long as CHO energy intake remains less than total energy expenditure (TEE). Instead, dietary CHO replaces fat in the whole-body fuel mixture, even in the post-absorptive state. Body fat is thereby accrued, but the pathway of DNL is not traversed; instead, a coordinated set of metabolic adaptations, including resistance of hepatic glucose production to suppression by insulin, occurs that allows CHO oxidation to increase and match CHO intake. Only when CHO energy intake exceeds TEE does DNL in liver or adipose tissue contribute significantly to the whole-body energy economy. It is concluded that DNL is not the pathway of first resort for added dietary CHO, in humans. Under most dietary conditions, the two major macronutrient energy sources (CHO and fat) are therefore not interconvertible currencies; CHO and fat have independent, though interacting, economies and independent regulation. The metabolic mechanisms and physiologic implications of the functional block between CHO and fat in humans are discussed, but require further investigation."
https://www.ncbi.nlm.nih.gov/pubmed/10365981
ダイエットカレンダーを表示, 2019年 08月 15日:
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2689 kcal
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脂質: 87.75g | たんぱく質: 179.29g | 炭水化物: 360.50g.
朝食: Butter Pecan Crunch Smart Pint, 1% Fat Milk, General Mills Cinnamon Toast Crunch Churros, Quest Cookies & Cream Protein Bar, Pears, Chobani vanilla greek yogurt. 昼食: Land O'Lakes Sliced American Cheese, Great Value Enriched Hamburger Buns, Ketchup, Wal-Mart Angus Steak Burger 1/3 lb, Arby's Seasoned Curly Fries, Quest Cookies & Cream Protein Bar, Apples, Ole Extreme Wellness High Fiber Low Carb Tortillas, Carl Buddig Deli Thin Honey Turkey Lunch Meat. 夕食: Quest S'mores Protein Bar, Tombstone Original Pepperoni Pizza, Pears. 軽食/その他: Chobani vanilla greek yogurt. もっと...
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3543 kcal
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運動:
座る - 8 時間, 睡眠 - 7 時間 40 分, ウエイトトレーニング（ふつう） - 1 時間, 自転車（のんびり） - 時速16km以下 - 3 時間, 休憩 - 4 時間 20 分. もっと...
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