Cleveland Clinic’s health articles are based on evidence-backed information and review by medical professionals to ensure accuracy, reliability and up-to-date clinical standards. Testosterone levels in males naturally decline with age. It affects male fetuses as they develop in the uterus, as well as teenage sexual development during puberty. The symptoms of low testosterone vary based on your age. This condition is very common — up to 15% of females of reproductive age have it. Excess testosterone in male children can lead to precocious (early) puberty, which is when puberty begins before the age of nine. More recent studies have shown that testosterone stimulates muscle mass (Storer et al, 2003) and reduces body fat (Bhasin et al, 2004). In women, excess production of endogenous testosterone due to inborn disorders of sexual development (DSD) may convey a competitive advantage. These have everything you need to collect a blood or saliva (spit) sample to send to a lab for testing. A health care professional will take a blood sample from a vein in your arm, using a small needle. Men taking testosterone replacement must be carefully monitored for prostate cancer. There are times when low testosterone is not such a bad thing. Affected women may experience low libido, reduced bone strength, poor concentration or depression. In children and teens, your provider may use a testosterone levels test to figure out what's causing early or delayed puberty. However, most of your testosterone is bound to proteins such as sex-hormone-binding globulin (SHBG) and albumin. Not everyone with low testosterone has symptoms (like low sex drive, fertility problems or erectile dysfunction). You may talk to your healthcare provider about a testosterone level test if you have symptoms of low testosterone. High testosterone levels could indicate a tumor in your adrenal glands or testicles. Laboratories may have different reference ranges for normal testosterone levels. Blood tests are a very common and essential part of medical testing. SingleCare Services, LLC is the marketer of the discount medical plan organization including its website, singlecare.com , with its corporate office located at 99 High Street, Suite 2800, Boston, MA 02110. Towers Administrators LLC is the licensed discount medical plan organization with its administrative office located at 4510 Cox Road, Suite 111, Glen Allen, VA 23060. You are fully responsible for paying for all health care services but will be entitled to receive a discount from those health care providers in accordance with the specific pre-negotiated discounted fee schedule. The top supplements in this guide may have certain ingredients that pose some risks, such as ashwagandha’s potential influence over thyroid hormone levels,16 but those risks are either extrapolated from related data or currently only exist as case studies. Ultimately, Innerbody Labs strikes the best balance, excluding unnecessary and poorly researched ingredients and keeping close to doses used in the most successful human studies to date. For example, if one ingredient can boost testosterone production and another can reduce its attachment to sex hormone-binding globulin (SHBG), they could work together to elevate T levels and keep them high. At Innerbody Research, we extensively research each health service we review, testing products and services ourselves to the greatest extent that we can. Aging, obesity, taking certain medications and other health conditions like liver and kidney disease, sleep disorders, type 2 diabetes, and HIV can contribute to lower testosterone levels.² Your body controls the levels of testosterone in your blood. If testosterone levels are too high or too low, it can cause certain symptoms. If your test results show testosterone levels below the normal range or your symptoms are significant, you should seek treatment beyond simple dietary adjustments. While some of these foods may help to modulate testosterone levels in healthy men, they wouldn't be enough on their own to address clinically low T or hypogonadism. Accordingly, the distinction of male or female sex applies to all animals, but only humans can be said to have gender. DSD is often confused with "intersex", referring to conditions where the external genitalia do not conform to the standards of either male or female (Ritchie et al, 2008). Nonetheless, individual athletes may be required by their sport federation to undergo testing for sexual genotype and phenotype based on a challenge by another athlete or a suspicion raised during sample provision for doping control (IAAF, 2006). One confusing topic in the testosterone sphere is the difference between free and total testosterone. But black pepper is common in many supplements thanks to its ability to increase your nutrient absorption, so your body can get more benefit from whatever you consume.40 Most of the research on ginseng's potential as a testosterone booster has taken place in rats and mice.13 The results are compelling, but more human trials are needed. Studies repeatedly show that increasing vitamin D intake can increase testosterone.22 But credible research isn't necessarily statistically or clinically significant, and too many studies rely on participant sets that are too small to correlate with the general population. By suppressing SHBG, you can effectively increase your free testosterone from your regular testosterone supply.