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אבל הקטע עם הסידן מאוד מעניין דווקא... זה 40 קל' אקסטרא ביום? זה יכול להצטבר לא רע חחח
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1.
Int J Obes (Lond). 2005 Mar;29(3):292-301. Effect of short-term high dietary calcium intake on 24-h energy expenditure, fat oxidation, and fecal fat excretion.
BACKGROUND: Observational studies have shown an inverse association between dietary calcium intake and body weight, and a causal relation is likely. However, the underlying mechanisms are not understood. OBJECTIVE: We examined whether high and low calcium intakes from mainly low-fat dairy products, in diets high or normal in protein content, have effects on 24-h energy expenditure (EE) and substrate oxidation, fecal energy and fat excretion, and concentrations of substrates and hormones involved in energy metabolism and appetite. DESIGN: In all, 10 subjects participated in a randomized crossover study of three isocaloric 1-week diets with: low calcium and normal protein (LC/NP: 500 mg calcium, 15% of energy (E%) from protein), high calcium and normal protein (HC/NP: 1800 mg calcium, 15E% protein), and high calcium and high protein (HC/HP: 1800 mg calcium, 23E% protein). RESULTS: The calcium intake had no effect on 24-h EE or fat oxidation, but fecal fat excretion increased approximately 2.5-fold during the HC/NP diet compared with the LC/NP and the HC/HP diets (14.2 vs 6.0 and 5.9 g/day; P < 0.05). The HC/NP diet also increased fecal energy excretion as compared with the LC/NP and the HC/HP diets (1045 vs 684 and 668 kJ/day; P < 0.05). There were no effects on blood cholesterol, free fatty acids, triacylglycerol, insulin, leptin, or thyroid hormones. CONCLUSIONS: A short-term increase in dietary calcium intake, together with a normal protein intake, increased fecal fat and energy excretion by approximately 350 kJ/day. This observation may contribute to explain why a high-calcium diet produces weight loss, and it suggests that an interaction with dietary protein level may be important.
2. Am J Clin Nut. 2007 Mar;85(3):678-87. Effect of dairy calcium or supplementary calcium intake on postprandial fat metabolism, appetite, and subsequent energy intake.
"Dairy calcium significantly diminished the postprandial lipid response. The baseline adjusted area under the curve for chylomicron triacylglycerol was approximately 17% lower after the MC meal (P = 0.02) and approximately 19% lower after the HC meal (P = 0.007) than after the LC meal"
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ב(1) נראתה פליטה של 14.2 גרם שומן!. כלומר 127 קלוריות משומן לא נספגו. ומצד שני, כאשר הכמות הגבוהה של הסידן נצרכה עם הרבה חלבון, האפקט היה זהה לכמות הסידן הבינונית (כמובן, וזה מה שרלוונטי יותר אלינו). מחקר (2) בדק את העלייה בכילומיקרונים, הנשאים של השומן התזונתי, לאחר האכילה. ירידה של 19% נראתה לאחר אכילה של ארוחה המכילה 172 מ"ג של סידן תזונתי.
אני בדיוק זז, אני אגיב לשאר הדברים יותר מאוחר.