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Private, accurate & secure
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Match your main weight question to the right panel

Each of these answers a different weight and metabolism question — narrow or broad.

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A weight loss blood test compares measurements that influence energy use, blood-sugar handling, thyroid activity, and cardiometabolic risk. Options range from a focused thyroid panel with TSH, free T4, and free T3 to panels that pair glucose and A1C with insulin, cholesterol, triglycerides, and selected hormones. People often compare these tests when progress has stalled, weight has changed unexpectedly, or they want baseline information before discussing a plan with a healthcare professional. Start by deciding whether your main question is thyroid function, glucose and insulin, or a more comprehensive set of measurements.

What Weight-Related Blood Tests Measure

Thyroid measurements help assess a common source of weight and energy concerns. TSH reflects pituitary signaling to the thyroid, while free T4 and free T3 describe circulating thyroid hormone available to tissues. Glucose is a point-in-time blood-sugar result; hemoglobin A1C estimates average glucose exposure over roughly the prior two to three months. Insulin adds information about the body’s insulin response when viewed alongside glucose. Cholesterol, HDL, LDL, non-HDL cholesterol, and triglycerides describe blood fats that often matter in metabolic risk discussions. Ferritin reflects stored iron, and vitamin D is included in the Thyroid Panel with Ferritin and Vitamin D. Results need interpretation alongside symptoms, history, and professional guidance.

Use Related Measurements Together

A single result rarely answers why weight is changing or why weight loss has been difficult. In the Weight Loss Checkup, TSH, T4, T3 uptake, and free T4 index are read together rather than as interchangeable thyroid results. Its glucose, insulin, and A1C answer different timing questions about blood sugar. The panel also measures cortisol, estradiol, free and total testosterone, and DHEA sulfate, which are best reviewed in light of age, sex, symptoms, and timing. ALT and AST reflect enzymes found in liver and other tissues; strenuous exercise can raise both. Creatinine and eGFR describe kidney filtration estimates, and creatinine is influenced in part by muscle mass.

When Unintended Weight Change Needs Attention

Unexpected weight loss deserves timely professional evaluation, particularly when it is persistent or accompanied by fatigue, fever, digestive symptoms, or other changes. The Unexpected Weight Loss Check measures a blood count, comprehensive chemistry measurements, thyroid tests, glucose, A1C, insulin, ferritin, vitamin D, hs-CRP, cortisol, estradiol, testosterone, FSH, LH, and an ANA screen. A blood count reports red cells, hemoglobin, white cells, and platelets; ferritin helps assess iron stores. hs-CRP and ANA are not diagnostic on their own and require clinical interpretation. This combination supports a broad review, but laboratory findings do not establish the cause of weight loss by themselves.

Weight & Metabolism FAQ

A weight loss blood test often examines thyroid signaling, blood sugar, insulin, cholesterol, triglycerides, and measurements that help frame overall health. TSH, free T4, and free T3 relate to thyroid activity; glucose and A1C describe different views of blood sugar. Broader options also include liver enzymes, kidney filtration estimates, ferritin, and selected sex hormones.

The Sugar Check Panel with Insulin measures glucose, hemoglobin A1C, and insulin, along with electrolytes, calcium, phosphate, protein measures, liver enzymes, creatinine, eGFR, and urea nitrogen. Glucose reflects one collection time, while A1C reflects longer-term average glucose exposure. Insulin is most informative when considered with glucose and the person’s clinical situation.

Thyroid tests assess hormone signaling that influences metabolism and energy use, but they do not explain every weight concern. Thyroid TSH w/ Free T4 & Free T3 measures TSH, free T4, and free T3. The Thyroid Panel with Ferritin and Vitamin D additionally measures thyroid peroxidase and thyroglobulin antibodies, ferritin, and vitamin D, offering more information for a thyroid-focused discussion.

The Weight Loss Checkup includes glucose, A1C, insulin, thyroid measurements, cortisol, estradiol, testosterone, DHEA sulfate, ferritin, blood counts, chemistry values, and lipids. Metabolic Syndrome Profile (Advanced) is narrower: it measures glucose, cholesterol fractions, triglycerides, hs-CRP, and GGT. The first suits a multi-measurement review; the second centers on glucose, blood fats, inflammation-related hs-CRP, and GGT.

A1C and glucose represent different time frames. Glucose reports the level at the blood draw, which can shift with meals, stress, illness, and activity. Hemoglobin A1C estimates average glucose exposure over the preceding two to three months. Seeing both in the Sugar Check Panel with Insulin helps a healthcare professional assess whether a one-time result aligns with a longer-term pattern.

Cholesterol, HDL, LDL, non-HDL cholesterol, and triglycerides describe circulating blood fats that are relevant to cardiometabolic risk discussions. The Metabolic Syndrome Profile (Advanced) combines those results with glucose, hs-CRP, and GGT. Weight change alone does not determine these values, and results are best considered with blood pressure, medical history, and other factors a healthcare professional evaluates.

Cortisol, estradiol, free and total testosterone, and DHEA sulfate add endocrine measurements to the Weight Loss Checkup. These values vary with factors such as time of collection, age, sex, menstrual status, and health conditions. They should not be used alone to explain body weight or direct treatment; a clinician can relate an unusual result to symptoms and relevant history.

Yes. Unexpected Weight Loss Check combines thyroid measurements, glucose, A1C, insulin, a blood count, chemistry results, ferritin, vitamin D, hs-CRP, cortisol, sex hormones, and an ANA screen. That breadth helps identify results worth discussing, but it does not diagnose the reason for weight loss. Seek prompt professional review for unexplained or continuing weight loss, especially with concerning symptoms.

Ordering & Results FAQ

You'll receive it via email within 60 seconds of your order unless it requires additional processing (only very complex orders do).

Many general wellness test results are typically available online within 2-3 business days. However, some tests will require additional processing time. You will immediately receive an email & SMS notification when your results are available.

We do not share your results with your physician, insurance company, or any other third party.

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