If you're a man or woman in the UK facing unexpected weight gain, mood changes, or trouble conceiving, you might not have considered the role of Sex Hormone Binding Globulin (SHBG) in these issues.
SHBG acts as a traffic controller, regulating the amount of active sex hormones available in your bloodstream.
Too little SHBG can mean excess free (active) testosterone in your system, while too much SHBG can reduce available testosterone or oestrogen, impacting both physical and emotional health.
Testing your SHBG can be particularly helpful if:
Mayfield Clinic's SHBG Home Blood Test Kit offers fast, fuss-free results. Prefer in-person testing? Book a blood test with one of our friendly UK GPs for personalised advice.
For further reading, see the NHS Hormones A-Z.
Yes. Low SHBG can mean more free (active) testosterone, which is sometimes linked to increased body hair, acne, and low mood, as well as erectile dysfunction or fertility issues in men.
Low SHBG in men is associated with metabolic syndrome, obesity, type 2 diabetes, and higher cardiovascular risk. It can also contribute to low testosterone symptoms.
Lifestyle changes like losing weight, exercising, eating well, and controlling metabolic conditions may help normalise SHBG. Always speak to your GP for tailored advice.
Check your SHBG levels at home with an easy finger-prick blood test kit.
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