Why Your Hormone Levels Look “Normal”… But You Still Feel Bad. The Hidden Role of SHBG (Sex Hormone Binding Globulin)

Hormone replacement therapy (testosterone or estrogen) is becoming more common, but one of the biggest mistakes in medicine today is treating the number instead of treating the patient.

Many patients are told:

“Your testosterone is normal.”

“Your estrogen is fine.”

Yet they still have fatigue, brain fog, low libido, mood changes, poor sleep, and weight gain.

Often, the missing lab is SHBG (Sex Hormone Binding Globulin).

What is SHBG?

SHBG is a protein made in the liver that binds hormones and controls how much your body can actually use.

Think of it like this:

• Total hormone = money in the bank

• Free hormone = money in your pocket, you can spend

You only feel the effects of the FREE hormone.

So two people can have the same testosterone level, but one feels amazing, and the other feels terrible.

Why?

Because SHBG controls hormone availability.

When SHBG is HIGH:

(very common in thin, stressed, aging, or thyroid-active patients).

Your lab may show normal testosterone or estrogen, but most of it is locked away.

What patients feel:

• Low libido

• Fatigue

• Brain fog

• Anxiety

• Poor recovery from exercise

• Dry skin / vaginal dryness

• Sleep disturbance

• Loss of muscle despite working out

Common causes

• Aging

• Overtraining / chronic stress

• Calorie restriction

• Hyperthyroidism

• Birth control pills

• Estrogen therapy (oral)

• Liver overproduction

• Genetics

In this situation:

Giving more testosterone or estrogen may not work well unless SHBG is addressed.

When SHBG is LOW

(common in insulin resistance & metabolic syndrome).

Hormone may look “normal” but is unstable and rapidly cleared.

What patients feel:

• Weight gain (especially abdominal)

• Acne

• Hair thinning

• PCOS-type symptoms

• Energy crashes

• Irritability

• Sugar cravings

• Poor metabolic health

Common causes

• Insulin resistance

• Prediabetes/diabetes

• Fatty liver

• Obesity

• Inflammation

• High insulin levels

In this situation:

Giving hormones alone may worsen the imbalance; we must fix metabolism first.

Why This Matters Before Hormone Replacement

Before starting testosterone or estrogen therapy, we evaluate:

• Total hormone

• Free hormone

• SHBG

• Thyroid function

• Metabolic markers

• Symptoms (most important!)

Hormones are not just about the lab number; they are about how well your body can use them.

Sometimes the best treatment is not replacing hormones first…

but improving how your body handles them.

How We Improve Hormone Function Naturally

Depending on the cause, we may focus on:

Lowering SHBG (unlock hormones)

• Resistance training

• Adequate protein intake

• Correcting thyroid balance

• Improving sleep

• Adjusting estrogen delivery method

• Targeted nutrition

Raising SHBG (stabilize hormones)

• Improving insulin resistance

• Weight loss (metabolic, not crash dieting)

• Reducing inflammation

• Gut & liver health

• Strategic carbohydrate timing

Only after this do we decide whether hormone replacement is appropriate.

The Most Important Rule in Hormone Therapy:

We treat people! Not numbers.

Some patients feel great at a lower level.

Some feel terrible at a “normal” level.

Lab tests guide us. Symptoms decide treatment.

When to Get Checked

Consider evaluation if you have:

• Persistent fatigue

• Low libido

• Brain fog

• Mood changes

• Poor sleep

• Weight changes despite effort

• Exercise intolerance

• Perimenopause or menopause symptoms

• Andropause symptoms

At Sunny Health DPC, we evaluate hormones through a clinical and lifestyle medicine approach, not just replacement therapy.

Because the goal is not simply higher hormones…

It’s a better function.