Time of day may determine the amount of fat burned by exercise (Late AM is best)

Physical activity at the right time of the day seems able to increase fat metabolism, at least in mice. A new study shows that mice that did exercise in an early active phase, which corresponds to morning exercise in humans, increased their metabolism more than mice that did exercise at a time when they usually rest.

Physical activity at different times of the day can affect the body in different ways since the biological processes depend on the circadian rhythms of the cells. To ascertain how the time of day at which exercise is done affects the burning of fat, researchers studied the adipose tissue of mice after a session of high-intensity exercise performed at two points of the daily cycle, an early active phase and early rest phase (corresponding to a late morning and late evening session, respectively, in humans). The researchers studied various markers for fat metabolism and analyzed which genes were active in adipose tissue after exercise.

The researchers found that physical activity at an early active phase increased the expression of genes involved in the breakdown of adipose tissue, thermogenesis (heat production) and mitochondria in the adipose tissue, indicating a higher metabolic rate. These effects were observed only in mice that exercised in the early active phase and were independent of food intake.

"Our results suggest that late morning exercise could be more effective than late evening exercise in terms of boosting the metabolism and the burning of fat, and if this is the case, they could prove of value to people who are overweight," says Professor Juleen R. Zierath.

“I must be doing it wrong.”

Amino acids are a group of 20 organic compounds that share specific formation traits. They are known as the ‘building blocks’ of proteins in both plants and animals. Because they play such a foundational role, they are involved in many chemical reactions throughout your body to help maintain your body’s normal functions.

Protein supplements don’t improve performance or recovery time and, according to a recent study, such supplements are inefficient for most athletes. “They are often poorly used or unnecessary by both high-level athletes and amateurs,” says Martin Fréchette, a researcher and graduate of the Université de Montréal Department of Nutrition.

Another way to look at it is like oil in your automobile engine. If you use bad oil, or no oil, the body won’t run right. Supplements are not a substitute for nutrition, so fasting doesn’t help the weight loss reaction to it. Your body needs vitamins, minerals, and other nutrients from food to stay healthy. If you don’t get enough, you can have symptoms such as fatigue, dizziness, constipation, and dehydration plus a problem with cold temps. When you eat less than you need and you lose weight, your body goes into a starvation mode. To save energy, your metabolism slows down.

When you’re done fasting and you go back to your usual diet, you may regain the weight you lost, and then some. On a fast, your body adjusts by curbing your appetite, so you will feel less hungry at first. But once you have stopped fasting, your appetite revs back up. You may feel hungrier and be more likely to overeat.

Fasting every other day has similar results. It helps people lose weight, but not for long. In one study, people who fasted every other day shed weight, even when they ate all they wanted on days when they weren’t fasting. But the weight loss didn’t last over time as people will stray from the comfort and fulfillment of eating and slow or stop the fasting process. Don’t not eat, eat with a purpose and intelligently.

Wy69

Exercise doesn’t burn very many calories, anyway. Over a relatively short period of time, regular activity can cause the resting metabolic rate to slow down to a break even point. Adaptive thermogenesis causes this. It’s a big reason why the behemoths on Biggest Loser almost always gain back the weight.

People are not fatter these days because of less activity; they are fatter because they eat too much. Lack of “playing outdoors” isn’t why kids are fat. It’s cramming chips and soda down their necks.

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