Wellness testing service | cdr labs

Test hormones that may be related to unexpected changes in weight and energy

This at-home lab test measures three hormones that can influence your metabolism and may help you understand unexpected changes in weight and energy.

Your test measures your free testosterone, cortisol, and thyroid-stimulating hormone (TSH) levels.

Your test results include your levels of TSH, cortisol, free testosterone, and whether they are low, normal, or high as compared to established normal ranges. By measuring the levels of each hormone, you can better understand what you may be experiencing with your body composition, weight, and energy levels.



Cortisol is produced in the adrenal glands and is released in response to stressors like illness and exercise. Cortisol is often referred to as your body’s “stress hormone,” but it has many roles in the body, including helping to control blood sugar levels and regulating energy metabolism. In most people, cortisol levels peak in the morning and are lowest in the middle of the night.


Free Testosterone

Testosterone is primarily produced by the testes or ovaries, respectively, with a small amount produced by the adrenal glands. Free testosterone is not attached to proteins, whereas total testosterone includes free testosterone and testosterone that is bound to the proteins (e.g. albumin and sex hormone binding globulin) in the blood. While commonly regarded as the primary male sex hormone, testosterone is important for bone density, libido, body fat distribution, and supporting muscle mass across all sexes.


Thyroid-Stimulating Hormone

Thyroid-stimulating hormone, or TSH, is a hormone produced by the pituitary gland that is responsible for controlling the production of the thyroid hormones T3 and T4 by the thyroid gland. The hormone TSH is considered the most sensitive marker for screening for thyroid diseases and conditions.