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Weight Loss Blood Tests: Metabolic & Hormone Panels
See the metabolic and hormonal numbers behind appetite, energy, and fat storage, so your plan is built on data, not guesswork.
Affiliate disclosure: we earn a commission when you purchase lab tests through links on this site, at no extra cost to you. Learn more
Basic panels from $65.95 ($52.76 with the 20% code); comprehensive options up to $438.95 ($351.16 with code), promotional pricing at time of writing.
At a glance
Weight loss and weight management blood testing measures the metabolic and hormonal markers, blood sugar, insulin, thyroid hormones, cortisol, lipids, and key nutrients, that influence appetite, energy, and fat storage. These panels are designed for adults who have hit a plateau, regained weight, or simply want objective baseline data before changing their nutrition or training plan. Each panel can be ordered online with a doctor's order included, and results are physician-reviewed.
Best suited for
- Adults whose weight has plateaued despite consistent diet and exercise
- People noticing low energy, strong cravings, or unexplained weight changes
- Anyone with a history of thyroid, blood sugar, or nutrient concerns who wants current numbers
- Self-quantifiers who want objective data before adjusting nutrition, training, or supplements
- People preparing for a doctor's visit who want relevant lab results in hand
What's included
Weight Management (Women) - Basic
4 tests, 64 biomarkers
Weight Management (Men) - Basic
4 tests, 64 biomarkers
Weight Management (Women) - Basic Plus
11 tests, 71 biomarkers
Weight Management (Men) - Basic Plus
11 tests, 71 biomarkers
Weight Management (Women) - Advanced
18 tests, 82 biomarkers
Weight Management (Men) - Advanced
17 tests, 81 biomarkers
Weight Management (Women) - Comprehensive
22 tests, 86 biomarkers
Weight Management (Men) - Comprehensive
21 tests, 85 biomarkers
Weight Management Blood Test Panel, Women
12 tests, 48 biomarkers
Weight Management Blood Test Panel, Men
12 tests, 48 biomarkers
Deep-dive the key markers: Fasting Glucose, HbA1c, Fasting Insulin, LDL-C, HDL-C, Triglycerides, hs-CRP, TSH, Free T3, Free T4, Vitamin D, Ferritin, eGFR, ALT
Key biomarker ranges
Commonly used adult reference ranges for markers this panel measures, labs vary, so always interpret results against your lab's stated ranges and with your doctor.
Commonly used reference ranges place fasting glucose at 70–99 mg/dL; results vary with sleep, stress, and recent illness, and labs differ slightly.
| Zone | Range |
|---|---|
| Low | 50–70 mg/dL |
| Optimal | 70–100 mg/dL |
| Prediabetic range | 100–126 mg/dL |
| Diabetic range | 126–160 mg/dL |
Commonly used reference ranges place HbA1c below 5.7%; conditions affecting red blood cells can skew results, so labs and clinicians interpret in context.
| Zone | Range |
|---|---|
| Optimal | 4–5.7 % |
| Prediabetic range | 5.7–6.5 % |
| Diabetic range | 6.5–10 % |
Commonly used reference ranges accept up to ~25 µIU/mL, but many clinicians view single-digit fasting insulin as the more informative target; assays vary by lab.
| Zone | Range |
|---|---|
| Low | 0–2 µIU/mL |
| Optimal | 2–10 µIU/mL |
| Above optimal | 10–25 µIU/mL |
| High | 25–30 µIU/mL |
The importance of testing
Weight plateaus and rebound gain often have measurable correlates. Fasting glucose, hemoglobin A1c, and insulin describe how your body handles carbohydrates and stores energy; shifting patterns in these markers are associated with insulin resistance, a frequent companion to stalled progress even when diet and training are consistent.
Thyroid hormones sit at the center of metabolic rate. TSH, Free T3, and Free T4 track how your thyroid is regulating calorie burn, while cortisol reflects stress load and recovery, both factors worth reviewing with your doctor when energy is low or weight moves in unexpected directions.
Nutrient and inflammation markers round out the picture. Vitamin D, B12, folate, and iron studies (including ferritin) are tied to energy metabolism and fatigue, and hs-CRP screens for the low-grade inflammation associated with weight gain. A lipid panel and comprehensive metabolic panel add cardiometabolic context, cholesterol, triglycerides, and liver and kidney markers that often shift alongside weight.
The practical value is in trends. Establishing a baseline, retesting after a few months of changed habits, and bringing both sets of numbers to your clinician makes conversations about nutrition, training, sleep, and supplementation far more targeted.
Promo code
ULTAE54BSave 20% with code ULTAE54B, limited-time promotion; confirm final pricing on the partner page.
Ready to get your numbers? Order online, visit a nearby draw site, and receive private results to review with your doctor.
Order NowFrequently asked questions
What do weight loss blood test panels measure?
They measure weight-related biomarkers such as glucose, hemoglobin A1c, insulin, thyroid hormones (TSH, Free T3, Free T4), a lipid panel, vitamin D, B12 and folate, iron studies, a comprehensive metabolic panel, cortisol, and hs-CRP, with exact tests varying by panel. Together these markers describe how your body regulates blood sugar, metabolic rate, stress, nutrients, and inflammation.
Can I order these tests without a doctor's visit?
Yes, a doctor's order is included with every purchase, so no separate appointment or referral is needed. You order online, visit one of roughly 2,100 Quest locations for the blood draw, and receive physician-reviewed results in your secure online account, most within 24–48 hours.
Which panel should I choose, Basic, Basic Plus, Advanced, or Comprehensive?
Choose based on how much detail you want: Basic panels cover core markers at the lowest price, while Advanced and Comprehensive tiers add more hormones, nutrients, and metabolic tests. Men's and women's versions of each tier are available, and the panel pages list every included test so you can compare before ordering.
Can these tests tell me why I'm not losing weight?
They can flag measurable factors that often accompany stalled weight loss, such as blood sugar and insulin patterns, thyroid hormone levels, cortisol, low vitamin D, or iron status, but they are not intended to confirm any condition. Results are best used as a starting point for a conversation with your doctor about personalizing nutrition, training, sleep, and supplementation.
Is this testing available in every US state?
No, direct-to-consumer lab testing is restricted or prohibited in New York, New Jersey, and Rhode Island, so residents of those states may be blocked at the partner's checkout. Testing is otherwise available at Quest locations nationwide, with walk-ins accepted at most sites.
Can I pay with an HSA or FSA?
Yes, HSA and FSA payments are accepted for eligible services, and no insurance is required to order. Results are delivered privately to your secure online account.
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