How Testosterone Affects Fat Loss: Real Science of Low-T | Thomas DeLauer

How Testosterone Affects Fat Loss: Real Science of Low-T | Thomas DeLauer

How Testosterone Affects Fat Loss: Real Science of Low-T | Thomas DeLauer: I'm sick of the lack of legitimacy behind testosterone, so let's clear some of this up. I work with a lot of men that are battling Low-T by helping them with their lifestyle at

As men age, their testosterone levels decline. This is exacerbated by an increase in SHBG (sex-hormone binding globulin), which binds to testosterone and thus reduces the amount of free testosterone in the body. Low testosterone levels have been linked to obesity and many other health problems, including fatigue, memory problems and reduced muscle and bone mass. So what is the impact of testosterone on body fat?
Testosterone and energy – low levels of testosterone are linked with low energy levels. Regaining regular testosterone levels can increase energy and lead to weight loss. Studies have found that testosterone supplementation reduces total body fat percentages. Obesity is often correlated with low testosterone levels in men. Just as testosterone therapy is associated with decreased obesity, losing weight is associated with increased testosterone levels.
An article published in 2014 in the journal of Current Opinion in Endocrinology, Diabetes and Obesity looked at the existing data regarding testosterone therapy in overweight and obese men with testosterone deficiency (hypogonadism).
-Many weight loss supplements have dangerous side effects or are ineffective
-Looked at weight loss, BMI, waist circumference and body composition
-Evaluated long-term testosterone therapy
-About 40% of obese nondiabetic men and 50% of obese diabetic men over 45 have low levels of free testosterone
-Many studies have found that testosterone therapy in obese men is correlated with increased lean body mass, weight loss, decreased BMI and reduced waist circumference.
-Weight loss is significant and sustained with long-term testosterone therapy

Testosterone plays a part in protein, fat and carbohydrate metabolism.
-Testosterone is involved with mitochondrial function and thus energy production and utilization
-This interference with energy production is likely why those with low testosterone levels experience a lack of energy
-Testosterone therapy has been found to increase lipid oxidation and normalize glucose use in the body. It was found to increase energy and motivation.

Weight gain is associated with an 88% increase in body fat and a 12% increase in lean body mass (LBM) and weight loss with a 72% decrease in body fat and a 28% decrease in LBM.
-With testosterone therapy LBM has been shown to increase.
-Increased LBM means increased energy expenditure at rest
-Testosterone therapy is also associated with improved cardiometabolic function

Testosterone deficiency is linked with a decrease in energy metabolism from fat and an increase in energy metabolism from glucose.
-Testosterone therapy has been shown to increase lipid metabolism

Safety? Safety is the main concern with testosterone replacement therapy. Possible risks discussed in literature include:
-Increased risk of prostate and breast cancer
-Liver toxicity and tumors
-Sleep apnea exacerbation
-Testicular infertility and atrophy

It is necessary to talk with your doctor before starting testosterone therapy.
Summary: If you are a male struggling to lose weight, testosterone therapy is a promising treatment to help with not only weight loss but body composition, energy levels and overall health.

References:

1. Dose-dependent effects of testosterone on regional adipose tissue distribution…

2. Testosterone and weight loss: the evidence

3. Effects of testosterone treatment on body fat and lean mass in obese men on a hypocaloric diet…

4. The benefits and risks of testosterone replacement therapy: a review
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