Why is my hair shedding?

Seeing extra hair in the shower is unsettling. The drain is a terrible place to receive a health update.

One possible explanation is telogen effluvium: increased shedding after a physical stressor such as substantial weight loss, illness, or inadequate nutrition. The frustrating twist is timing—the shedding can show up months after the trigger, when you thought that chapter was over.

Look backward before buying everything labeled “hair”

The American Academy of Dermatology describes this delayed shedding pattern and notes that fullness often returns after the trigger resolves, commonly over several months. That’s educational guidance, not a guarantee that all hair loss on a GLP-1 is temporary or has the same cause.

Talk with your clinician about the timing, pace of weight loss, food intake, other medicines, and whether targeted testing is appropriate. Thyroid problems, iron deficiency, hereditary hair loss, and scalp conditions are different problems that can require different approaches.

A gummy is not a diagnosis

Check that you’re eating enough and getting reasonable protein. Don’t start high-dose iron or a stack of hair supplements without knowing what you’re treating. Biotin is a particularly useful cautionary tale: the FDA warns it can interfere with certain lab tests, including some tests used to evaluate heart attacks. Tell your care team what you take before blood work.

Patchy bald spots, scalp pain or inflammation, or persistent or worsening loss deserves an examination rather than assuming it is “just the medication.”

My take: find the reason first. Your bathroom shelf does not need to become a clinical trial conducted by advertising.

Sources checked September 19, 2026. General education; your own care plan comes from your clinician.