GLP-1 Receptor Agonist (GLP-1 RA) Improves Men's Health

The recent hype of use of GLP-1 RA in weight loss can be beneficial in male’s sexual function and testosterone levels. Further to effective weight reduction, GLP-1 RA is postulated to enhance obese male reproductive function.

Obesity is a chronic medical condition

The cause of raised BMI (body mass index) is multifactorial with genetic susceptibility, potential concurrent medical conditions and environmental influences such as person’s lifestyle and cultural behaviors and socio-economic status.

Obesity is associated with increased risk of cardiovascular diseases, diabetes, hypertension, osteoarthritis, sleep apnea, cancers, and mood disorders. Obesity also has a deleterious effect on male reproductive function and is associated with impaired erectile function, poor sperm quality and quantity.

Sadly, often people with obesity does attempt to lose weight with exercise or controlled eating, but inevitably regain the additional weight over time. Introduction of GLP-1 RA in obesity has been approved and encouraged recent years medically due to the effectiveness in re-achieving and sustaining healthier weight.

What is GLP-1 Receptor Agonist?

GLP-1 Receptor Agonist (GLP-1 RA) also known as glucagon-like peptide-1 receptor agonists are currently used medically for weight loss, in conjunction with conventional management such as exercise and dietary modification.

GLP-1 RA mimics the body's natural way of responding and metabolizing blood glucose, and affects various organs of the body.

Common GLP-1 RAs seen in the market including Semaglutide, Liraglutide and Dulaglutide. Interestingly, these medications are also used in the management of diabetes though they are used at a different dosage in the management of obesity.

Obesity Results in Male Hormone Dysregulation

Uncontrolled weight can reduce the chances of conceiving in men.

The hypothalamus and the pituitary gland of the brain play important roles in regulating male hormones. In obesity, this brain-reproductive organ regulation can be disrupted, leading to inadequate production of male hormones such as testosterone.

To make things worse, excessive adipose (fat) tissues present in obesity convert testosterone into estradiol through a process known as aromatization. This results in even lesser testosterone in the blood circulation.

Those with obesity also has lesser sex hormone-binding globulin (SHBG) that is paramount in binding sex hormones and ferrying them around the body. Low SHBG causes a state of greater effect of estradiol, and lesser effect of testosterone in the body.

Furthermore, other hormones such as growth-like factor, inhibin B are reduced in obesity leading to lesser testosterone production by the testis.

The pro-inflammatory state of obesity leads to a general less conducive environment for one to produce healthy testosterone hormones.

Positive Effect of GLP-1 RA on Male Hormones

GLP-1 receptors can be found in male reproductive organs. They play an important role in sperm production.

GLP-1 RA increases testosterone levels (both total testosterone and free testosterone) in obese men. In addition, there are significant rise in levels of brain hormones (known as gonadotropins) which subsequently facilitate the downwards cascading effect on the testis to produce testosterone and sperm.

Indirectly, due to weight loss, better glucose control and improved insulin sensitivity following the use of GLP-1 RA in obesity, one may notice higher male hormones.

Effect of GLP-1 RA on Erectile Dysfunction (ED)

The actual role of GLP-1 RA in obese men experiencing erectile dysfunction is not fully understood.

ED is a condition closely related to age, the neuro-blood circulation function around the penis, and hormonal control. Many of those suffering with obesity have concurrent metabolic conditions such as diabetes and ED.

GLP-1 Agonist is believed to have anti-inflammatory effect, protecting and preserving the nerves and blood vessels around the penis by modulating one's glucose and lipid metabolism resulting in improvement in ED.

Effect of GLP-1 RA on semen and sperm quality

Human's body shows presence of GLP-1 receptors over the sertoli and leydig cells of the testis- both cells regulates the process of sperm production. GLP-1 RA has a positive effect on both sertoli and leydig cells, resulting in better sperm production, sperm energy metabolism and sperm movement.

GLP-1 RA can improve the sperm quality, sperm amount and sperm motility in obese male.

Impact of GLP-1 RA on Cardiovascular Risk of Men

Use of GLP-1 RA is associated with a significant reduction of major adverse cardiovascular events such as stroke, heart attack and death. Also, GLP-1 RA is known to improve patients’ outcomes who has concurrent heart failure and chronic kidney disease.

By losing weight, improving the body’s glucose control and cholesterol levels, studies have proven that GLP-1 RA improves cardiovascular morbidity and mortality.

Final Words…Worth the hype to try GLP-1 RA if you are an obese man?

• It is common to experience deconditioned reproductive function in men who are obese.
• GLP-1 RA is medically proven to be safe and effective in long term management of weight.
• GLP-1 RA has a role in management of infertility in obese men.
• Increasing medical evidence has shown GLP-1 RA is also beneficial in modulating and improving men’s sexual hormones, sperm quality and production, improves erectile function and lowers cardiovascular risks.

If you are considering GLP-1RA as an option for weight management and men’s health concerns, do reach out without hesitation to us for further understanding.

Contact DB Clinic

If you would like to better understand whether GLP-1 Receptor Agonist therapy is appropriate for your health goals, a consultation can help clarify your options. The medical team at DB Clinic provides personalised assessments based on your medical history and needs. Contact us now!

References:

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2. Salvio G, Ciarloni A, Ambo N, Bordoni M, Perrone M, Rossi S, Balercia G. Effects of glucagon-like peptide 1 receptor agonists on testicular dysfunction: A systematic review and meta-analysis. Andrology. 2025 March. doi: 10.1111/andr.70022
3. Rivera FB, Cruz LLA, Magalong JV, Ruyeras JMMJ, Aparece JP, Bantayan NRB, Lara-Breitinger K, Gulati M. Cardiovascular and renal outcomes of glucagon-like peptide 1 receptor agonists among patients with and without type 2 diabetes mellitus: A meta-analysis of randomized placebo-controlled trials. Am J Prev Cardiol. 2024 May 7:18:100679.
4. Varnum AA, Pozzi E, Deebel NA, Evans A, Eid N, Sadeghi-Nejad H, Ramasamy R. Impact of GLP-1 Agonists on Male Reproductive Health- A Narrative Review. Medicina (Kaunas). 2023 Dec 27;60(1):50.
5. Ferhatbegovic L, Mrsic D, Macic-Dzankovic A. The benefits of GLP1 receptors in cardiovascular diseases. Front Clin Diabetes Healthc. 2023 Dec 8;4:1293926.