what blood test does a weight loss dr do


Are you considering seeing a weight loss doctor to help you shed those extra pounds? If so, you may be wondering what blood tests a weight loss specialist will perform. Blood tests are an important tool that doctors use to evaluate your overall health and identify any underlying issues that may be impacting your weight. In this article, we will explore the various blood tests that a weight loss doctor may order as part of your comprehensive evaluation.

Full Blood Count (FBC)

The full blood count, commonly known as FBC, is a routine blood test that provides valuable insights into your overall health. It measures various components of your blood, including red blood cells, white blood cells, and platelets. This test can help identify conditions such as anemia, infections, and inflammation, which can all impact your weight loss journey.

The red blood cell count measures the number of oxygen-carrying cells in your body. Anemia, which is characterized by a low red blood cell count, can cause fatigue and weakness, making it harder to stay active and maintain a regular exercise routine. By identifying and treating anemia, your weight loss doctor can ensure that you have the energy and stamina to engage in physical activities that support weight loss.

White blood cells are an essential component of your immune system, responsible for defending your body against infections. An infection can cause systemic inflammation, leading to weight gain or hindering weight loss progress. By examining the white blood cell count, a weight loss doctor can identify any underlying infections or inflammation that may be impeding your weight loss efforts.

Platelets are crucial for blood clotting and wound healing. If your platelet count is low, it can indicate a potential issue with blood clotting, which may affect your body's ability to heal from injuries. Additionally, certain medications used in weight loss treatment, such as blood thinners, can impact platelet function. Therefore, it is important for a weight loss doctor to assess your platelet count to ensure your safety during treatment.

Thyroid Function Test

The thyroid gland plays a crucial role in regulating your metabolism, which in turn affects your weight. If your thyroid is underactive (hypothyroidism) or overactive (hyperthyroidism), it can contribute to weight gain or difficulty losing weight. A thyroid function test measures the levels of thyroid hormones, such as T3, T4, and TSH, in your blood.

Hypothyroidism is associated with symptoms such as weight gain, fatigue, and sluggishness. This condition can make it challenging to lose weight due to a slower metabolic rate. By diagnosing and addressing hypothyroidism, a weight loss doctor can prescribe appropriate treatment and help optimize your metabolism to support your weight loss goals.

On the other hand, hyperthyroidism can cause unintentional weight loss due to an excessive metabolic rate. This condition may be accompanied by symptoms such as increased heart rate, anxiety, and heat intolerance. Identifying and treating hyperthyroidism is crucial to ensure that your weight loss journey is healthy and sustainable.

Glucose and Insulin Levels

Blood sugar regulation is vital for overall health and weight management. A weight loss doctor may request a measurement of your glucose and insulin levels to assess your body's ability to regulate blood sugar. High levels of glucose and insulin can indicate insulin resistance, a condition where your body's cells become less responsive to the effects of insulin. Insulin resistance is often associated with weight gain and difficulty losing weight.

When you consume carbohydrates, your body breaks them down into glucose, which is then used as an energy source. Insulin is a hormone that helps transport glucose from the bloodstream into your cells. If your cells become resistant to insulin, glucose remains in the bloodstream, leading to elevated blood sugar levels. This can contribute to weight gain and inhibit weight loss progress.

By assessing your glucose and insulin levels, a weight loss doctor can determine if you have insulin resistance or other blood sugar abnormalities. They can then tailor a customized treatment plan that includes dietary modifications, exercise recommendations, and, if necessary, medication to help regulate your blood sugar levels and support your weight loss efforts.

Lipid Profile

A lipid profile measures the levels of various types of fats, including cholesterol and triglycerides, in your blood. This test provides insights into your heart health and can also be indicative of your body's ability to utilize and metabolize dietary fats.

High levels of low-density lipoprotein (LDL) cholesterol, often referred to as "bad" cholesterol, can increase the risk of cardiovascular diseases. Excess weight, especially abdominal fat, can contribute to elevated LDL cholesterol levels. By monitoring your lipid profile, a weight loss doctor can assess your cardiovascular risk and make recommendations to improve heart health through lifestyle modifications, dietary changes, and, if necessary, medication.

Elevated triglyceride levels can also be associated with weight gain and insulin resistance. Triglycerides are a form of fat stored in your body and can serve as an energy source. However, consistently high levels of triglycerides are linked to an increased risk of heart disease.

By evaluating your lipid profile, a weight loss doctor can identify any abnormalities and implement strategies to optimize your lipid levels. This may involve adopting a heart-healthy diet, increasing physical activity, and potentially utilizing medications to address any underlying issues.

Liver Function Tests

Your liver plays a vital role in metabolism, digestion, and detoxification. Weight loss can put stress on the liver as it metabolizes and eliminates toxins released during the fat-burning process. Therefore, it is important to assess liver function to ensure its health and proper functioning.

Liver function tests measure various enzymes and proteins in your blood that indicate liver health. Elevated levels of liver enzymes, such as alanine aminotransferase (ALT) and aspartate aminotransferase (AST), may indicate liver inflammation or damage. Inflammation or damage to the liver can impact your ability to metabolize nutrients and toxins effectively, hindering weight loss progress.

Moreover, certain medications used in weight loss treatment can have potential impacts on liver function. Therefore, it is crucial for a weight loss doctor to monitor your liver health regularly throughout your weight loss journey.

In addition to the mentioned blood tests, a weight loss doctor may order additional tests based on your medical history, symptoms, and specific weight loss goals. These tests may include vitamin and mineral levels, hormone assessments, and genetic markers related to weight management. The comprehensive evaluation allows the weight loss doctor to tailor a personalized treatment plan that addresses your individual needs.


When embarking on a weight loss journey, consulting with a weight loss doctor can provide valuable insights and support. Blood tests are an essential part of the evaluation process, as they help identify any underlying health conditions that may be impacting your weight. By assessing factors such as blood cell counts, thyroid function, glucose and insulin levels, lipid profile, and liver function, a weight loss doctor can develop a comprehensive treatment plan to optimize your health and assist you in achieving your weight loss goals.

Remember, weight loss is not just about shedding pounds but also about improving your overall well-being. By addressing any underlying health issues through blood tests and customized treatment plans, a weight loss doctor can help you achieve sustainable and long-term success on your weight loss journey. So, don't hesitate to seek professional guidance and support on your path to a healthier you.


Just tell us your requirements, we can do more than you can imagine.
Send your inquiry

Send your inquiry

Choose a different language
Current language:English