(which can help enhance focus and mental function), and inhibition of phosphodiesterases leading to an increase level of cyclic AMP in muscle tissue (creating a more favorable intracellular environment in active muscle). Caffeine also spares glycogen (carbohydrate stores in muscle cells and the liver) leading to an increased rate of fat oxidation, which could explain why caffeine delays time to exhaustion during aerobic exercise.
Caffeine has some diuretic properties that can aid in decreasing water retention in the body, although it does not seem to act as a diuretic during exercise. Nevertheless, it is important to consume plenty of water when taking in caffeine. Another thing to look out for is caffeine's effects on blood sugar. Although not clear from the research, it may decrease insulin sensitivity, so diabetics need to be careful. Regularly consuming high amounts of caffeine may also adversely affect blood pressure. Moderation is the key.
What does the science say about Fat loss Supplements? Caffeine is one of the best-researched ergogenic (capable of enhancing physical performance) aids available. It has been shown in several studies to promote fat oxidation and both weight loss and fat loss in exercising individuals. Many studies show that caffeine enhances both short-term and long-term endurance. Caffeine seems to delay fatigue (prolongs time to exhaustion), so aerobic workouts can go on longer and stronger. It has been shown to be effective in increasing speed in simulated race conditions. A 1998 study published in the International Journal of Sports Medicine found that caffeine was an effective ergogenic aid for short-term, maximal running performance. Even though there are far fewer studies with caffeine and resistance training (weight lifting), some evidence suggests that caffeine can increase power generated in repeated muscle contractions and enhance endurance at submaximal tension.
A combination of guarana and Yerba mate (and Damiana leaf), containing a good dose of caffeine, was shown in a study published in the Journal
of human Nutrition mid Dietetics to significantly enhance weight loss after just 45 days of use, and they kept their weight off for a full year after the study.
Fat loss Supplements Dosage: A regular cup of coffee has about 100 milligrams (mg) of caffeine but some research shows that coffee is not as effective in maximizing the
Fat loss Supplements - Caffeine Precautions and Side Effects
- Calcium Absorption and Bone Health—There is some link between caffeine consumption and bone health, especially in women. However, if adequate amounts of calcium are being consumed, caffeine does not pose a problem at all.
- Blood Pressure—Research shows that moderate caffeine consumption daily does not elevate blood pressure in healthy individuals, but higher doses of caffeine (5 cups of coffee daily) have been linked to high blood pressure. Moderation is the key. If you have pre-existing high blood pressure, then caffeine should be avoided.
- Homocysteine Levels—Heavy coffee drinking raises plasma homocysteine levels. Since an elevated level of total homocysteine is considered to be a risk factor for cardiovascular disease, it is a good idea not to overdo it with caffeine on a regular basis.
- Stomach Discomfort—No research suggests this clearly, but some people who take higher doses of caffeine complain of mild stomach distress. If this is a problem, then taking caffeine with food may help. This may also subside after several days of caffeine use.
- Jitteriness and Nervousness—Since caffeine is considered a stimulant, some people may experience these effects. Lowering the caffeine dose initially may help and some of these symptoms may subside after caffeine tolerance is reached.
Pregnant and nursing women should be aware that some evidence suggests that taking more than 300 mg of caffeine daily may increase the risk of miscarriage and a low-birth weight baby. Caffeine crosses the placenta and affects the unborn baby and it is also transferred into breast milk. It's definitely a good idea to avoid caffeine while pregnant or nursing.
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