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Showing posts with the label yo-yo effect

Dieting Down to ~10% Body Fat for Women: Contest Prep Study - Deficits, Muscles, Hormones and the Yo-Yo Effect

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This would unquestionably be at the lower end of contest BF% levels (avg. 12%) the women in this study achieved, The number of studies on fitness and bodybuilding competitions is limited. Probably you will remember my previous discussions of the paper/s by Rossow, et al. ("Natural bodybuilding competition preparation and recovery: a 12-month case study." | 2013)  Kistler, et al. ("Case Study: Natural Bodybuilding Contest Preparation." International Journal of Sport Nutrition and Exercise Metabolism", 2014), and  Robinson et al. ("A nutrition and conditioning intervention for natural bodybuilding contest preparation: case study" | 2015). And yes, three is not just the number of studies that I've covered at the SuppVersity , it's also the number of decently recent studies dabbling with dieting down for a contest in one of the "physique sports". High protein helps, but do not counter the weight-loss-induced changes in RMR ...

True Alternate Day Fast Beats Classic Dieting: Max. Fat, Min. Muscle Loss, No 'Metabolic Damage' in 32 Wk Human Study

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This is exactly the way your plate will look during true alternate day fasting. This study is not just about alternate day fasting aka ADF. It is about "true alternate day fasting" - What is that? Well, it's not an official medical term, yet, but if you hadn't read about "alternate day fasting" regimens at the SuppVersity before, you'd probably think that an "alternate day fast" would be a full fast as in "not eating anything" every 48h - like in "Monday, don't eat; Tuesday, eat regularly, Wednesday, don't eat; Thursday, eat regularly..." As of now, only a handful of rodent studies tested (quite successfully, though) these "true alternate fasting" regimen, while human studies often used reduced, but never no energy intakes on the fasting days. That's until now, though! Scientists from the University of Colorado Anschutz Medical Campus randomized decently healthy, but obese adults BMI 30 kg/m², age...

The Diet Trap Revisited: Yo-Yo Effect, Decreased Basal Metabolic Rate and the Myth of Fat-Free Mass Losses. Plus: Gender Discrimination and the "Diabetic Advantage"

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Image 1: Geoffrey Cannon's "Dieting Makes You Fat" was first published in 1983 and has lost nothing of its topicality. According to relatively recent data ( Bendixen. 2002 ; Kruger. 2004 ), roughly 30–50% of the women and 10–30% of the men are currently or have recently attempted to lose weight by "dieting". I would assume that at least 90% of these dieters followed did so by just following the "Hippocratic approach" to weight loss of eating less and exercising more a strategy that is probably even more futile today, than 400BC, when it was first proposed by the father of modern allopathic medicine (cf. Precope. 1952 ), or 1983, when Cannon and Einzig published the first of the countless editions of their explanation for why dieting is a disaster (which is  by the way, not just because a calorie was not a calorie ;-). Dieting makes you fat - fullstop! From earlier as well as more recent studies on the effects of starvation, calorie restrictio...

Challenging the Special K Challenge: Especially Convenient or Especially Stupid 14-Day Weight Loss "Solution"?

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Image 1: Is this really all it takes to lose those unhealthy and unaesthetic pounds? Two servings of a breakfast cereal a day, instead of two of your regular meals? Sounds too "good" (?) to be true, right? A study says it works, but only the SuppVersity will tell you the real costs! For me, as a German, it is quite surprising that the words "Special K", or rather the reference to the eponymous product comes up pretty often in the health and nutrition blogosphere, when someone wants to point out an e-special-ly (K) unhealthy breakfast. While "low fat", still looms large here in Germany and "diet"-this and "diet"-that stickers (respective products usually carry the label "light", which shall obviously imply "light" as in "lightweight") are attached to an ever-growing number of products in the mainstream supermarkets, my fellow countrymen (I am unfortunately not so sure about the women, though) must yet ha...
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