Dr. Chloe Horwood-Little, D.C

08/06/2026

08/04/2026

One of the most underchecked biomarkers in women’s health is Free T3.

Most women are only told their TSH is “normal,” but TSH doesn’t tell you how much active thyroid hormone is actually reaching your cells.

Free T3 is the hormone that helps regulate:
• Energy and metabolism
• Body temperature
• Hair and skin health
• Bowel motility
• Cholesterol metabolism
• Ovulation and hormone balance
• Brain function and mood

You can have a “normal” TSH and still have suboptimal Free T3, especially if you’re dealing with chronic stress, insulin resistance, inflammation, nutrient deficiencies, or Hashimoto’s.

If you’re doing everything “right” but still feel exhausted, struggle to lose weight, have constipation, brain fog, or low body temperature, it may be time to look beyond TSH.

The goal isn’t to chase one lab value—it’s to understand how your entire thyroid system is functioning and whether it’s meeting your body’s needs.

08/02/2026

MCAS and histamine intolerance can look almost identical—but histamine buildup is not always just about eating high-histamine foods.

Histamine is cleared through multiple pathways. DAO helps break down histamine in the gut, while HNMT clears histamine inside the cells and depends on methylation. That means thyroid function, nutrient status, inflammation, stress, gut health, hormones, and methylation can all influence how well histamine is processed.

This is especially important for people with Hashimoto’s or hypothyroidism. Low Free T3 can reduce cellular energy and may also affect how efficiently homocysteine is recycled through the methylation cycle. When that cycle is under pressure, the body may have less capacity to process histamine, estrogen, dopamine, serotonin, and adrenaline efficiently.

Homocysteine is one biomarker we can run to help assess how well this cycle is functioning—but it should never be interpreted in isolation.

This is why treating histamine symptoms without investigating thyroid function, gut health, nutrient deficiencies, inflammation, and methylation can leave people stuck managing the same reactions over and over again.

The goal is not to blame one gene or one pathway. It is to understand why your histamine bucket keeps filling and create a plan based on your individual physiology.

08/02/2026

MCAS and histamine intolerance can look almost identical on the surface—but the reason histamine is building up may be completely different.

For some people, the issue is primarily in the gut, where DAO helps break down histamine from food. For others, the bigger bottleneck may involve intracellular clearance through HNMT, methylation demands, nutrient status, thyroid function, inflammation, stress, gut health, or impaired elimination.

This is why simply eating low histamine or taking antihistamines may reduce symptoms without explaining why the “histamine bucket” keeps filling back up.

And it is rarely as simple as blaming one gene.

Genetics may influence vulnerability, but your current physiology matters too:

• Is your gut producing or clearing histamine appropriately?
• Are the nutrients needed for methylation available?
• Is chronic inflammation increasing demand?
• Is thyroid function affecting cellular energy and metabolism?
• Are hormones, liver function, digestion, and bile flow contributing to the overall burden?
• Are your symptoms truly histamine-driven—or is another pathway creating a similar presentation?

The goal is not to obsess over every SNP or endlessly restrict foods. The goal is to understand the pattern, identify the most meaningful bottlenecks, and build a personalized roadmap in the correct order.

That is what I investigate inside my MCAS & Histamine Deep Dive—looking at the systems together rather than treating each symptom in isolation.

Ready for answers instead of more guessing? Book your Histamine Consult through the link in my bio.

Educational content only. Histamine-related symptoms can have multiple causes and should be evaluated in the context of your full medical history.

08/01/2026

If you’ve been eating well, exercising, and doing “everything right” but the scale still isn’t moving… this is for you.

For years, I thought I just needed more discipline.

The truth? I needed a routine that made discipline easier and I needed to address what was happening inside my body.

For me, that meant improving my thyroid function, insulin resistance, hormones, chronic stress, and creating a lifestyle I could actually stick to.

I also want to be transparent: I use tirzepatide. I’ve lost 45 pounds—15 pounds before I ever started a GLP-1 and 30 pounds with it. It wasn’t magic. It simply made it easier to stay consistent while I did the work.

Weight loss is rarely just one thing.

It’s your metabolism, your hormones, your nervous system, your habits, your nutrition, your movement, and building a routine that works for your life—not someone else’s.

Stop trying to be perfect.

Start trying to be consistent.

💬 What has been the biggest thing holding you back on your weight loss journey?

07/30/2026

The lifestyle that got you here isn’t the lifestyle that gets you out.
I say this with so much compassion, not judgment: your body adapted to years of pushing through, ignoring signals, and running on empty. That adaptation is what chronic illness often is.
But the habits, pace, and patterns that led here won’t be the ones that lead you back out.
Something has to change. Or nothing will.
This isn’t about doing more. It’s not another supplement, another protocol, another thing to add to an already full plate. Sometimes the most important shift is simply slowing down enough to actually hear what your body’s been trying to tell you.
If you’re ready to figure out what actually needs to change — not guess at it — that’s exactly what I help people do. 🤍

07/28/2026

Consistency matters—but only when your routine is realistic enough to sustain.

A lot of people are trying to force themselves into someone else’s version of health: the 6 a.m. workout, 10,000 steps every day, an hour in the gym, Sunday meal prep, the perfect diet, the red light panel, or whatever routine is trending right now.

But setting a goal that looks impressive and then doing nothing because it feels overwhelming isn’t helping you build consistency.

If you’re currently averaging 2,000 steps a day, start with 4,000 for a week. Then build from there.

If an hour at the gym feels impossible, do 10 or 20 minutes. A shorter workout is still a workout.

And yes, sometimes fatigue means you need rest. But sometimes it means you still need to show up for yourself—just differently. That might look like a walk, mobility work, lighter weights, or a shorter session instead of skipping movement completely.

Maybe your body performs better at 10 a.m. Maybe a lunchtime workout helps you stay consistent and sleep better than training after work.

Maybe meal prepping for the entire week works for you. Maybe prepping the night before works better. Maybe you need to make your meals fresh that morning.

Your routine does not have to look like the person next to you.

Long-term health is less about doing everything perfectly and more about creating habits that fit your body, your schedule, your energy, and your actual life.

The best routine isn’t the most impressive one.

It’s the one you can keep showing up for—consistently, long after the motivation wears off.

07/27/2026

Most MCAS treatment gets this backwards. 👇
The common approach: identify the triggers — foods, chemicals, supplements, environments — and remove them one by one.
Antihistamines to manage symptoms.
A shrinking list of “safe” things.
More avoidance over time, not less.

The problem? That’s symptom management. Not treatment.

Mast cells don’t destabilize randomly.
They react the way they do because of the terrain around them:
🔹 Gut barrier integrity
🔹 Nervous system regulation
🔹 Methylation + detox capacity
🔹 Mineral status
🔹 Unresolved infections
🔹 Chronic stress load

When that terrain is inflamed and under-resourced, the body starts flagging normal foods, smells, meds, and environments as threats.
Not because those things are dangerous.
Because the system doesn’t have the capacity to process them properly.

Avoidance and antihistamines have a place. They can calm a flared-up system.
But if that’s the entire plan?
Patients end up more restricted, more hypervigilant, and no more stable than when they started.

The terrain is what actually needs to change.
Fix that — and the list of “triggers” often shrinks on its own.

If this is the piece that’s been missing for you, I put together a free guide that breaks down my whole terrain-first approach to MCAS.
Comment “GUIDE” below and I’ll send it your way. 👇