Showing posts with label Body Fat. Show all posts
Showing posts with label Body Fat. Show all posts
Wednesday, November 4, 2015
Breakfast: Eat it or Skip it? Making it High Protein Will Have Habitually Skipping Teens Lose Fat & Curbs Their Hunger
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| This could have been the HP breakfast. Egg-based pancakes + ham. |
In my more recent articles about the topic I have repeatedly exposed the claim that "not having breakfast is bad for everyone" is total bogus; and while I am not going to go back on that I am about to discuss a study that demonstrates that the right breakfast, i.e. one that's high in protein, may be extremely better than having no breakfast at all.
Learn more about fasting and eating / skipping breakfast at the waredownloadsoft
As a waredownloadsoft reader you'll know that previous studies suggest that as habitual breakfast skippers, the youths are actually not the ideal study object for a study to show beneficial effects of breakfast. After all, a recent study by Thomas et al. showed quite convincingly that "Whether Skipping Breakfast Increases Insulin, Hunger and Blood Lipids Depends on One's Breakfast Habits" (read the article). Is this a problem? Well, it could be if the new study yielded negative results. After all, we'd have to argue that this was to be expected if the subjects were habitual breakfast skippers.
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| Figure 1: Macronutrient composition (g) of the test meals used in the study (Leidy. 2015) |
One of the two non-pathetic studies comes from Schlundt et al. who examined the effects of consuming breakfast vs. breakfast skipping during a 12-week energy restriction weight loss diet in 52 adult women with obesity without finding significant differences.
More recently, Dhurandhar et al. completed a 16-week study in 309 adults with obesity and included a general recommendation to either "eat breakfast" or "skip breakfast". As it was to be expected when energy intake is controlled for, again, no differences in weight loss were observed in those who began eating breakfast compared to those who continued to skip breakfast.
made the subjects magically lose (HP) or at least not gain (NP) superfluous body fat.
"Breakfast!? An (Un-)Biased (?) Review of the Breakfast Myth" | read it! - significantly reduced the daily energy intake in the high protein condition and buffered the significant increase in energy intake in the no breakfast condition if the breakfast had a normal protein content,
- reduced the total time during which the subjects were hungry not just in the morning, but 24/7, and
- increased the subjects' fullness, especially in the morning.
In that it's important to highlight that the high protein breakfast outperformed the normal protein breakfast in all relevant categories, i.e. change in body fat, change in daily energy intake and change in hunger ratings, Accordingly, Leidy et al. are right when they highlight only the high protein breakfast in their conclusion which says that
"daily addition of a HP breakfast improved indices of weight management as illustrated by the prevention of body fat gain, voluntary reductions in daily intake, and reductions in daily hunger in breakfast skipping adolescents with overweight/obesity." (Leidy. 2015)In spite of that, we should not forget that even a regular breakfast which contained 15% protein, 65% carbohydrates, and 20% fat and consisted of (you guessed it) ready-to-eat cereals with milk outperformed not having breakfast at all. That's in contrast to some previous studies, most of which used shorter study durations and didn't allow for the habituation that's necessary for breakfast to have effects on the total energy intake, for example, to take place.
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| The study at hand is an excellent example that shows that the previously observed effects of habitation can be overcome if you adhere to your new breakfast protocol meticulously. |
If you are now contemplating to switch back to having breakfast, yourself, let me remind you that it is not possible to extrapolate study results that were generated with a specific group of subjects, in this case overweight, but still healthy adolescents to whomever you want. If you are on an energy controlled diet and skipping breakfast as a means to do intermittent fasting and reduce your overall energy intake, you won't reduce your 24h energy intake (after all, you're eating X kcal everyday, anyway). It is thus unlikely that you'd lose more weight than you'd do without breakfast and if you are like many people you will probably even feel hungrier now that you're able to eat only 3 small vs. 1-2 large(r) meals | Comment on Facebook!
References:
- Dhurandhar, Emily J., et al. "The effectiveness of breakfast recommendations on weight loss: a randomized controlled trial." The American journal of clinical nutrition 100.2 (2014): 507-513.
- Leidy, Heather J., et al. "A high‐protein breakfast prevents body fat gain, through reductions in daily intake and hunger, in “Breakfast skipping” adolescents." Obesity (2015).
- Schlundt, David G., et al. "The role of breakfast in the treatment of obesity: a randomized clinical trial." The American journal of clinical nutrition 55.3 (1992): 645-651.
- Thomas, Elizabeth A., et al. "Usual breakfast eating habits affect response to breakfast skipping in overweight women." Obesity 23.4 (2015): 750-759.
Ashwagandha Boosts Size & Strength Increases, Augments Fat Loss & Recovery in 8-Week Resistance Training Study
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| Ashwaghanda may be for gymrats, too. |
Read more about exercise-related studies at the waredownloadsoft
There's a study by Raut, et al. that evaluated the "tolerability, safety, and activity of Ashwagandha (Withania Somnifera) in healthy volunteers" from 2012; a study by Sandhu, et al. in which the researchers probed the "effects of Withania somnifera (Ashwagandha) and Terminalia arjuna (Arjuna) on physical performance and cardiorespiratory endurance in healthy young adults" and found an increase in velocity [+3%], relative power [+9%] and VO2 max [+7%] in response to 500mg/day for 8 weeks; a study by Choudhary et al. (2015) which found both, increases in VO2max and quality of life of 50 "athletic" individuals in response to a commercial Ashwaghanda product that goes by the cryptic acronym KSM-66 Ashwagandha; as well as a study by Shenoy, et al. (2012) which found 11%, 16% 16% and 2% increases in time to exhaustion, VO2, metabolic equivalents (METs) and respiratory exchange ratio (RER), respectively (note: the benefits were sign. lower in female study participants, see Table 1), in response to the same amount, i.e. 500 mg/day, of an aqueous root extract of Ashwagandha that has been used by Sandhu et al. two years before."prospective, double-blind, placebo-controlled parallel group study to measure the possible effects of ashwagandha extract on muscle strength/size, muscle recovery, testosterone level and body fat percentage" (Wankhede. 2015)in young men who participated in a standardized resistance training regimen, it is thus not totally impossible that the next best Ashwaghanda product from the internet will produce significantly different results. I guess you should keep that in mind if you plan to go shopping after reading this article. The product Wankhede, et al. used, by the way, was provided by Shri Kartikeya Pharma and Ixoreal BioMed and happened to be the same KSM-66 high-concentration root extract Choudhary et al. used in their likewise very recent study.
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| Figure 1: Overview of the study design as it is visualized in Wankhede et al. (2015) |
BIA and CK - not the best ways to measure body fat and recovery: What should be noted about these measurements, though, is the fact that body fat levels were measured via bio impedance (BIA) and the recovery was judged based on creatine kinase (CK) values. With BIA being susceptible to variations in hydration status and other sources interference (Kyle. 2004) and the CK-values showing extreme inter-individual variability (learn more), the validity of these outcomes remains somewhat questionable.
Both, the subjects who received the active treatment in form of 2x300 mg/day Ashwagandha, as well as those who received the placebo treatment, underwent identical 8-week resistance training programs; programs, the scientists describe as follows:"The resistance training program consisted of sets of exercises over major muscle groups in both the upper body and the lower body. [...] Each subject in both groups was asked to come to a training session every other day, with one rest day pe week, for three days per week. Every session began with a warm up consisting of five minutes of low-intensity aerobic exercise. The subjects were instructed to perform, for each set as many repetitions as they could until failure. The subjects were asked to go through the full range of motion and were demonstrated the proper technique for safe and effective weight lifting" (Wankhede. 2015).The workouts were periodized with increasing number of sets from 1-2 to 3. More specifically, the subjects performed barbell squats, the leg extensions, seated leg curls, machine chest presses, barbell chest presses, seated machine rows, one-arm dumbbel rows, machine biceps curls, dumbbel biceps curls, cable triceps press-downs, dumbbell shoulder presses, and the straight-arm pull-downs in the first two weeks and barbell squat (3 sets) the leg extension (3 sets), the leg curl (2 sets), one chest exercise (flat, incline or decline press or fly, cable cross over, 3 sets), one back exercise (rows, pull up, pull down or seated cable row, 3 sets), another chest exercise (3 sets) another back exercise (3 sets), one biceps exercise or one triceps exercise (curls or extensions, 3 sets), and one shoulder exercise (raises or presses, 3 sets) for the rest of the 8-week study.
"[...] the following limitations which should lead us to interpret the findings with some caution: the subjects are untrained and moderately young, the sample size of 50 is not large and the study period is of duration only 8 weeks" (Wankhede. 2015)Accordingly, Wankhede et al. rightly demand that further "[r]esearch studying the possible beneficial effects of ashwagandha needs to be conducted", research that spans "longer periods of time" and includes "different populations including females and older adults of both genders" (Wankhede. 2015). In this regard, I would like to remind you that the previously discussed results Shenoy et al. published three years ago, in which the sex of the participants had a major impact on the study outcome, make studies comparing male to female resistance trainees particularly appealing - from a science perspective, obviously ;-)
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| Sometimes lab values are deceiving - specifically if allegedly pathological elevations of kidney, liver and (heart) muscle enzymes (CK) are nothing but a perfectly physiological reaction to exercise | learn more! |
Enough of the complaints, though. Let's be greatful we even have a study investigating the effects of Ashwagandha on resistance training. Plus, the increases in strength, muscle size (which would be similarly thwarted by cell swelling in both groups when it was tested 'only' two days after the last workout) and testosterone, alone, warrant the authors' already carefully worded conclusion that "ashwagandha supplementation may be useful in conjunction with a resistance training program" (Wankhede. 2015) - even if the underlying mechanism is still unknown and the hypotheses the authors list in the discussion, i.e. (a) increase in testosterone (too low to have significant effects | learn why), (b) decrease in the levels of cortisol (not measured + acute cortisol elevations are associated w/ lean mass gains in strength training individuals | West. 2012), (c) beneficial effects on mitochondrial health and reduced ATP breakdown (observed only in rodents that were exposed to toxins vs. exercise), and (d) antianxiety effects and promotion of focus and concentration that "may translate to better coordination and recruitment of muscles" (Wankhede. 2015), are as the word "hypothesis" implies only hypothetical, i.e. conjectural | Comment on Facebook!
- Choudhary, Bakhtiar, A. Shetty, and Deepak G. Langade. "Efficacy of Ashwagandha (Withania somnifera [L.] Dunal) in improving cardiorespiratory endurance in healthy athletic adults." AYU (An international quarterly journal of research in Ayurveda) 36.1 (2015): 63.
- Kyle, Ursula G., et al. "Bioelectrical impedance analysis—part II: utilization in clinical practice." Clinical nutrition 23.6 (2004): 1430-1453.
- Patel, Dhaval, Harisha C. Rudrappa, and Proshanta Majumder. "A comparative pharmacognostical, physicochemical, and heavy metal analysis on Ashwagandha root obtained from natural and polluted sources." International Journal of Green Pharmacy 9.1 (2015): 14.
- Raut, Ashwinikumar A., et al. "Exploratory study to evaluate tolerability, safety, and activity of Ashwagandha (Withania Somnifera) in healthy volunteers." Journal of Ayurveda and Integrative Medicine 3.3 (2012): 111.
- Sandhu, Jaspal Singh, et al. "Effects of Withania somnifera (Ashwagandha) and Terminalia arjuna (Arjuna) on physical performance and cardiorespiratory endurance in healthy young adults." International journal of Ayurveda research 1.3 (2010): 144.
- Shenoy, Shweta, et al. "Effects of eight-week supplementation of Ashwagandha on cardiorespiratory endurance in elite Indian cyclists." Journal of Ayurveda and integrative medicine 3.4 (2012): 209.
- Wankhede, Sachin, et al. "Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial." Journal of the International Society of Sports Nutrition 12.1 (2015): 43.
- West, Daniel WD, and Stuart M. Phillips. "Associations of exercise-induced hormone profiles and gains in strength and hypertrophy in a large cohort after weight training." European journal of applied physiology 112.7 (2012): 2693-2702.
Diabetes, Heart Disease, Cancer - Three Good Reasons not to Join the Masses of Dumb "D(e)ad Body" Worshipers
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| This is one of the "dad body" models currently displayed on the net who are already beyond "normal-weight" obesity. |
And while it may be debatable whether a beer-bellied beanpole is sexy or not, there's no question that having a "dad body" is associated with a significantly increased risk of several potentially fatal health problems.
Learn more about the effects of your diet on your health at the waredownloadsoft
- The dad body is a reliable indicator of metabolic syndrome - As sexy as some people obviously believe it was, the belly your "dad" is carrying is a sign of his high risk of suffering from the five main features of the metabolic syndrome.
And as the data in Figure 1 tells you, the same goes for your pot-bellied normal-weight "mum", as well. I both population groups the prevalence of metabolic syndrome is significantly increased (Oliveros. 2014).
Figure 1: Prevalence of the 6 features of the metabolic syndrome in normal weight subjects according to the amont of body fat they are carrying around (Oliveros. 2014).
The dad body is associated with increased risk of subclinical atherosclerosis - Compared with dads and non-dads without bellies, the gut-bellied dad who is now proud of his "dad body" has 7% more sclerotic plaque and a 46% elevated risk of developing soft plaques, as well as a 7.1% increased risk of developing full-blown atherosclerosis (Kim. 2015).
Retinol (Vitamin A) - A Re-Discovered Weapon in the Battle Against Atherosclerosis: Reduced Progression in Patients, Protection For Healthy Subjects From 25,000IU/Day Retinol | more
Needless to say that Kim et al. also observed those with a particularly "daddy" belly and thus a high visceral to subcutaneous fat ratio were at the highest risk of clogged-up arteries.
Unsurprisingly, the same group of patients was identified by Polish scientists to suffer from subclinical disturbances of left-ventricular function a harbinger of heart attacks (Kosmala. 2012). Similar data comes from a 2012 study by Shea et al. who were able to confirm that those "with elevated [DEXA determined] %BF are at increased risk of developing cardiometabolic disease despite having a normal BMI" (Shea. 2012).- The female pendant to the dad body is associated with a high risk of dying from cardiovascular disease - An analysis of the data from the US NHANES dataset revealed that men and women with dad and mom bodies (>23.1% body fat in men and >33.3% in women; both fat, but with a normal BMI) didn't just have a four-fold higher risk of developing metabolic syndrome (16.6 vs. 4.8%, P < 0.0001), they also had a had higher prevalence of dyslipidaemia, hypertension (men), and cardiovascular disease (women).
- All the negative effects of having a "dad body" may come back to chronic metabolic stress and its vicious consequences- Data from a 2010 study from the University of Rome "clearly indicates that NWO [normal weight obese people], besides being in early inflammatory status, are contextually exposed to an oxidative stress related to metabolic abnormalities occurring in obesity" (Di Renzo. 2010).
It is thus hardly surprising that the cancer risk of "mom and dad body"-worshipers or rather those who are being worshiped for their "mom and dad bodies" is going to be significantly increased. After all, metabolic stress is among the primary triggers of all forms of cancer (Jin. 2007)
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| So you're eating "healthy"? Sure? Find out in this SV Classic. |
References:
- Kim, Sohee, et al. "Normal-weight obesity is associated with increased risk of subclinical atherosclerosis." Cardiovascular Diabetology 14.1 (2015): 58.
- Kosmala, Wojciech, et al. "Left ventricular function impairment in patients with normal-weight obesity contribution of abdominal fat deposition, profibrotic state, reduced insulin sensitivity, and proinflammatory activation." Circulation: Cardiovascular Imaging 5.3 (2012): 349-356.
- Marques-Vidal, Pedro, et al. "Normal weight obesity: relationship with lipids, glycaemic status, liver enzymes and inflammation." Nutrition, Metabolism and Cardiovascular Diseases 20.9 (2010): 669-675.
- Jin, Shengkan, and Eileen White. "Role of autophagy in cancer: management of metabolic stress." Autophagy 3.1 (2007): 28-31.
- Oliveros, Estefania, et al. "The concept of normal weight obesity." Progress in cardiovascular diseases 56.4 (2014): 426-433.
- Romero-Corral, Abel, et al. "Normal weight obesity: a risk factor for cardiometabolic dysregulation and cardiovascular mortality." European Heart Journal (2009): ehp487.
- Shea, J. L., et al. "Body fat percentage is associated with cardiometabolic dysregulation in BMI-defined normal weight subjects." Nutrition, Metabolism and Cardiovascular Diseases 22.9 (2012): 741-747.
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