On Your Mark Nutrition



Identify Hormonal Imbalances Stopping You From Losing Weight and Sleeping Well


Weight Management

Are you trying to lose weight and nothing is working? Testing for hormones can evaluate if hormonal imbalance is causing weight gain. Under-the-radar hormonal imbalance can sabotage our ability to lose weight despite our nutrition and exercise efforts. This becomes very important as we age.

The Weight Management Profile (Saliva + Blood Spot):

  • Detects hormonal imbalances, thyroid and Vitamin D deficiencies linked to weight gain, obesity and difficulty maintaining weight.
  • Provides early detection of insulin resistance, metabolic syndrome and type 2 diabetes.

Hormone-Related Causes of Weight Gain:

  • Estrogen & Progesterone Imbalance: can lead to weight gain in the hips and thighs, water retention and a slow metabolism
  • Low Testosterone or DHEA: can result in a decrease in lean muscle mass, an increase in body fat, decreased metabolic rate and abdominal obesity
  • High Cortisol: this can lead to increased belly fat, insomnia, sugar cravings and anxiety
  • Low Cortisol: can cause chronic fatigue, low energy, reduce exercise tolerance, weakened immunity and increased appetite
  • Vitamin D3 Deficiency: can lead to high insulin levels and increased belly fat
  • High TSH: can lead to hypothyroidism, low metabolic rate and obesity
  • High Insulin: this suggests insulin resistance, metabolic syndrome and abdominal obesity.
  • High HbA1c: predicts type 2 diabetes

The test is easy and simple.

Add-On Tests

1. Thyroid Profile (Blood Spot): provides a better estimation of your thyroid hormone bioavailability.

  • Free T3
  • Free T4
  • TPO

2. Cardiometabolic Profile (Blood Spot): allows for early detection of cardiovascular disease risks.

  • hsCRP
  • Triglycerides
  • Cholesterol
  • LDL
  • VLDL
  • HDL

3. Thyroid Profile + Cardiometabolic Profile

Test Details

  • Purchase the test
  • Pick up the collection kit
  • Collect saliva and dried blood-spot samples
  • Mail your collection kit to ZRT Labs using the pre-paid label
  • Obtain the results in ~1 week
  • Receive a 20-minute consult to go over your results and discuss a plan of action


Weight Management Profile
Add To Cart

Sleep Balance

Are you struggling being able to fall asleep? Do you always wake up in the middle of the night? Hormones can be the barrier to you getting high quality sleep. Chronic insomnia is associated with stress. This tests shows your true 24-hour sleep-wake pattern.

What Does It Measure?

  • Melatonin: a hormone, produced by the pineal gland, that regulates our sleep/wake cycle and serves as a "biological clock". Sufficient melatonin production at night - and its suppression of production during the day due to daylight exposure - is critical to optimal health.
  • Cortisol: a hormone, produced by the adrenal glands, that is released as a responder to stress. It follows a particular pattern during the sleep/wake cycle. In healthy people, it follows an opposite pattern to melatonin. Chronically high cortisol levels, especially at night, can lead to weight gain around the waist, muscle and bone loss, depression and weakened immunity.

The Healthy Daily Pattern of Cortisol & Melatonin:

  • Early Morning Hours: melatonin production drops at daylight and cortisol rises and peaks ~30 minutes to 1 hour after waking up.
  • Throughout the Day: cortisol production gradually decreases.
  • Evening: as daylight decreases, cortisol and melatonin levels are low
  • Right Before Bed: melatonin levels rise
  • Throughout Sleep: cortisol is at its lowest and melatonin levels reach their peak
  • Cortisol & Melatonin Cycle Repeats

The Problem:

  • Excessive Stressors: this includes physical stress, psychosocial stress, work stress, etc. and results in higher cortisol and lower melatonin, which stops melatonin from helping you fall asleep and stay asleep.
  • Disrupted Cortisol Pattern: this can occur when there are excessive stressors, which leads to high cortisol at night.
  • At Night - Higher Cortisol & Lower Melatonin: this results in disrupted sleeping patterns and exposure to more light at night, which further lowers melatonin.
  • Disrupted Sleep

Essentially, the high cortisol at night along with low melatonin production leads to a hyperarousal state that negatively impacts sleep.

The test is provided by ZRT Laboratory, which created a melatonin and cortisol dried urine test that is easier and more advantageous than serum, saliva and 24-hour urine tests that are typically used. Urine is collected on filter strips at 4 different times during the day. These time points reflect the ups and downs of melatonin and cortisol levels.

Test Details

  • Purchase the test
  • Pick up the collection kit
  • Collect urine on filter strips at 4 different time points of the day
  • Mail your collection kit to ZRT Labs using the pre-paid label
  • Obtain the results in ~1 week
  • Receive a 10-minute consult to go over your results and discuss a plan of action


Add To Cart