אהלן גל
כמו שציינת אכן ההשפעות המשמעותיות של ריבוי ארוחות יבואו מהצד של אינסולין, גלוקוז, ורמות LDL נמוכות יותר.
מצרף גרף מאחד מהמחקרים האחרונים של 2004
הבעיה היא שנתונים אלו יביאו באחוז הסתברות רב מאוד גם להשפעות נוספות של כל פעילויות האנרגיה בגוף. כל ה"גישה" "שלך" של מיעוט ארוחות לא בר סימוכין אמיתי(עדיין) , כי המחקר הראשון שהבאת הוא מלפני 15 שנה , ועולם התזונה ידע כמה שינויים מאז..
אני אישית יש לי מחקרים [1] שלא יתמכו בדעה הזאת אז לא היתי מכנה את זה כמו שאמרת "פריצת דרך".
נכון להיום כל תהליכי ההשמנה/הרזייה (מבחינת הורמונים)בגוף אינם ברורים מספיק ככה שעדיין קשה לקבוע מסקנה כלשהי. מחקרים מ2002 דווקא יתמכו נגד מיעוט ארוחות [2] .
רב המחקרים של ריבוי אוחות בהתייחס למשינויים במשקל גוף אינם חדשים ואפילו ישנים.
EZchip
[1]
2003 Sep;133(9):2748-55
The human body may buffer small differences in meal size and timing during a 24-h wake period provided energy balance is maintained.
Department of Medical Sciences, Nutrition, Uppsala University Hospital, SE-751 85 Uppsala, Sweden.
Ulf.Holmback@medsci.uu.se
Because approximately 20% of the work force in the industrialized world have irregular working hours, it is pertinent to study the consequences of eating at irregular, especially nighttime hours. We studied the postprandial responses during nocturnal fasting vs. eating throughout a 24-h wake period. Seven healthy males were studied twice in a crossover design. After a 6-d diet adjustment period [high fat diet, 45 energy percent (en%) fat, 40 en% carbohydrates)] with sleep from 2300 to 0700 h, the men were kept awake for 24 h at the metabolic ward and given either 6 isoenergetic meals, i.e., every 4 h (N-eat) or 4 isoenergetic meals from 0800 to 2000 h followed by a nocturnal fast (N-fast), with the same 24-h energy intake. Energy expenditure, substrate utilization, activity, heat release, body temperature and blood variables were measured over 24 h. Energy expenditure and blood glucose, triacylglycerol, insulin and glucagon concentrations were lower and nonesterified fatty acids concentrations were higher during the nocturnal fast than during nocturnal eating (P < 0.05); however, no 24-h differences between the protocols were apparent. Nocturnal fasting slightly altered the secretory patterns of the thyroid hormones and cortisol (P < 0.05). We found no clear indication that it would be more favorable to ingest few larger daytime meals than smaller meals throughout the 24-h period. The body seems to be able to buffer small differences in meal size and timing provided energy balance is maintained.
[2]
2002 Nov;26(11):1476-83
Eating frequency and body fatness in middle-aged men.
INSERM U558, Departement d'Epidemiologie, Faculte de Medecine, Toulouse, France.
OBJECTIVE: The relationship between eating frequency and body fatness was tested in a population sample. DESIGN: A cross-sectional survey on cardiovascular risk factors and a nutritional survey were carried out from June 1996 to April 1997. SUBJECTS: Population sample of 330 free-living middle-aged men (45-64 y). MEASUREMENTS: Body mass index (BMI), waist-to-hip ratio (WHR) and nutritional survey (3-day record). RESULTS: In the whole sample, BMI and WHR decreased significantly (P<0.05) along with the increase of the number of eating occasions. When low energy records were excluded, the trend for BMI and WHR according to eating categories remained significant. For WHR, averages were 0.98, 0.95, 0.94 and 0.93 for 1-2, 3, 4 or 5 or more feedings a day, respectively. For BMI, mean values were 28.1, 26.2, 26.2 and 24.5 kg/m(2), respectively. After adjustment for confounders (total energy intake or macronutrients, age, educational level, smoking habits, physical activity and restrained diet), the linear trend for BMI and WHR throughout feeding categories was significant when the whole sample was considered. This relationship remained similar when low energy records or when dieters were excluded. CONCLUSION: These results suggest that for an isoenergetic intake the increase of eating frequency is associated with lower body fatness.