Your doctor can see how well your metabolism is working through your BMP. This blood test is like a scorecard for your kidney function, blood sugar levels and more. It can offer clues to help detect various diseases. Don't worry — abnormal results don't necessarily mean you're sick.
Be patient
It may take you some time to increase your metabolism — three months is a reasonable timeframe to expect to see changes. If you are having a hard time losing weight, you might consider having your metabolism tested by a professional nutritionist.
Metabolism in adulthood does not slow as commonly believed, study finds. Metabolic rate remains stable all through adult life, from age 20 to 60 years old.
Being less active, losing muscle mass and the aging of your internal components all contribute to a sluggish metabolism. Fortunately, there are plenty of ways to fight aging from slowing down your metabolism.
If you're consuming too few calories your body essentially goes into starvation mode and receives the message that it needs to protect itself. This means holding onto weight for protection's sake. The body perceives reduced calorie intake as a stressor.
Contrary to what we might first think, fasting increases metabolism: “As food intake goes to zero, the body switches energy inputs from food to stored food (fat). This strategy significantly increases the availability of “food” which is matched by an increase in energy expenditure,” writes Dr. Fung.
But another 120-pound person may have a lot less lean mass and more body fat and therefore a “slow” metabolism. In fact, it is possible to have “normal-weight obesity” – a term used when referring to a person who appears thin but who is not very active and therefore has very little muscle mass, Majumdar explained.
Over time, studies have shown that metabolic rate (how fast we burn calories) starts to slow down by 2 to 3 percent each decade, beginning in our 20s. It becomes more noticeable between ages 40 and 60.
There are three basic metabolism types: ectomorph, mesomorph, and endomorph – definitely words you probably don't use in your normal, day-to-day conversations. But learning the types of body you were born with will help your fitness plan in the long run.
Your metabolic rate peaks in your early 20s, according to Women's Health Magazine. At this age, you tend to have a higher muscle mass and have a fair amount of physical activity built into your day. As early as age 30, however, men and women begin noticing a dip in their ability to lose weight.
Weight loss
A study published in 2003 found that switching from drinking cold water to hot water could increase weight loss. Researchers found that drinking 500 ml of water before a meal increased metabolism by 30 percent. Raising water temperature to 98.6 degrees accounted for 40 percent of the increase in metabolism.
Short-term fasts boost metabolism by up to 14%
However, some older studies have shown that fasting for short periods can actually increase your metabolism, not slow it down ( 30 , 31 ). One older study in 11 healthy men found that a 3-day fast actually increased their metabolism by an impressive 14% ( 32 ).
Thermic foods like eggs and cruciferous vegetables burn fat by taking your body longer to digest. Some of the best fat-burning foods are green tea, salmon, apple cider vinegar, and lean chicken.
Building Muscle Mass
Fat and muscle weigh the same amount, but muscle is denser and takes up less space. So you may be eating healthy and taking in fewer calories -- and you probably see a difference in your body and the way your clothes fit -- but the number on the scale might be going up instead of down.
You've gained muscle.
And here's an often overlooked fact: Muscle tissue is more dense than fat tissue. So as you gain more muscle and lose fat, you change your overall body composition, which can result in a higher weight, but a smaller figure and better health.
At the most basic level, not reaching your weight loss goal can occur when calorie intake is equal to or higher than calorie use. Try strategies such as mindful eating, keeping a food diary, eating more protein, and doing strength exercises.