Tip: Facts On Fat Burning Supplements

The fat burning supplements category is quite broad. Tons of different products are being sold with the claim of helping you lose fat faster and more easily. Fat loss supplements are formulated to do one of the following: Increase metabolic rate or energy expenditure via increased beta adrenergic (adrenaline) activity Increase metabolic rate or energy expenditure via a higher T3 (thyroid hormone) production Increase fat mobilization via inhibition of the alpha-adrenergic receptors Increase fatty acid transport and/or utilization of fat for fuel Improve insulin sensitivity Activate the mitochondrial uncoupling protein 1 (UCP1) There might be other mechanisms (like reducing fat absorption) but these are the main ones. So let’s break each of these down. Increased Metabolic Rate Via Beta Adrenergic Stimulation This is done with products often labeled “stimulants” so think ephedrine, synephrine, and the like. Caffeine can even be included here, indirectly. These work, and they do increase energy expenditure which leads to fat loss. But their effect is fairly small. An old study looked at the effect of the ephedrine/caffeine stack. It improved metabolic rate/energy expenditure by 5%. That’s maybe an extra 100 calories per day. It can still have an affect and help get that last bit of fat off when you’re dieting down for a contest, but it’s no miracle. The main reasons stimulants “work” is that they blunt appetite, which makes you eat less and makes it easier to follow a diet. It also gives you more energy when you’re tired from dieting down. If you have more energy, you’ll move more and train harder which will also help you lose fat. But overusing stimulants come at a price. First they lead to an increase in cortisol, and most of us already have too much of that. But more importantly, when you chronically overstimulate, the beta adrenergic receptors can easily become desensitized (they don’t respond well to adrenaline anymore). When that happens it’ll actually become harder to lose fat and you’ll also have less energy and motivation. Ultimately, you’ll start to feel worse and worse. This category of product is best left for losing the last few pounds. I only recommend using them for a few weeks, which is why they need to be the very last thing to add in a regimen. Increased Metabolic Rate/Energy Expenditure Via Higher T3 Production The T3 thyroid hormone is in large part responsible for elevating your metabolic rate. The body produces mostly T4 which is then converted to T3. To boost T3 levels you can either increase overall thyroid hormone production or increase T4 to T3 conversion. To boost overall thyroid production the best thing to do is to provide the body with enough raw material to make these hormones. Specifically iodine and tyrosine. As such, supplements containing both can help a bit with thyroid production. As for T4 to T3 conversion, one of the best things you can do is decrease stress levels. Chronically elevated cortisol can impair that conversion. Zinc deficiency will also be problematic because zinc is required for the conversion to take place. Rhodiola and raspberry ketones, which are in Hot-Rox® Extreme, can indirectly increase that conversion too. Increased Fat Mobilization Via Inhibition of the Alpha-Adrenergic Receptors We have two main types of adrenergic (adrenaline) receptors: the beta and alpha receptors. The beta receptors are the “on” switch. When activated they increase heart rate, CNS activation, energy mobilization (including fat) and muscle strength. These are the receptors being targeted by most stimulants. The alpha receptors are the “off” switch. When activated, they shut down energy/fat mobilization, slow heart rate, decrease CNS activation, etc. Some supplements are antagonists of the alpha adrenergic receptors. This simply means that these supplements block the alpha receptors. If you block them, your body continues mobilizing energy for longer. There’s a theory that stubborn body fat sites (where you have problems losing fat the most) have more alpha and less beta adrenergic receptors, making it much harder to mobilize fat there. Yohimbe HCL/yohimbine, which is also found in Hot-Rox® Extreme, is an antagonist of the alpha receptors. For that reason it can work for increasing fat mobilization, especially in stubborn regions. Just be aware that if you’re overly stressed or planning to do a monster CrossFit-like workout, yohimbe might not be a great idea: even without stimulants these kind of workouts will increase adrenaline so much that you can run into trouble. The best use for a yohimbe-containing product is before steady-state cardio. It’s not a magic pill, but it can help get rid of the stubborn body fat when that’s all you have left. It works WITH exercise – it’ll make the exercise more efficient at mobilizing fat. By itself it will have a small impact, and it’ll be a lot more effective with cardio than weight training. Increased Fatty Acid Transport and/or
Origin: Tip: Facts On Fat Burning Supplements