Advanced Thyroid Health & Metabolism Panel

The storage form of thyroid hormone, mostly converted into T3 when needed. Most of your circulating thyroid hormone is in this T4 form.

The active thyroid hormone, the one actually doing the work in your cells. T3 influences metabolic rate, energy, body temperature, mood and heart rate.

The pituitary signal that tells your thyroid how hard to work. Counter-intuitively, high TSH usually means your thyroid is under-active (the brain is shouting at it), and low TSH often means it's over-active.

Essential for energy production, nerve function, and red blood cell formation. Found almost exclusively in animal products, so vegans and vegetarians need to supplement. Low B12 can present as fatigue, brain fog or tingling.

Works alongside B12 to build red blood cells and support DNA repair. Particularly important for women of reproductive age. Influenced by diet, certain medications, and alcohol intake.

Your body's stored iron, the long-term iron savings account. Low ferritin is the earliest sign of iron deficiency, often appearing before iron itself drops or anaemia develops. Common in women with heavy periods, athletes, and people on plant-based diets.

The vitamin your body makes from sunlight and gets from food. Affects bones, muscles, mood, and immune function. UK adults often run low in winter months.

A marker your liver releases when there's inflammation anywhere in the body. High CRP can reflect short-term inflammation (a recent illness, intense training, an injury) or longer-term, low-grade inflammation linked to lifestyle, sleep and stress.

Antibodies that target a protein your thyroid uses to make hormones. Raised levels can suggest your immune system is acting against your thyroid, which is worth flagging to your GP.

Antibodies that attack an enzyme your thyroid needs to make hormones. Raised levels can be an early sign of an autoimmune thyroid issue and are worth flagging to your GP.