Dr. Monica Velletri, ND

Dr. Monica Velletri, ND Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Dr. Monica Velletri, ND, Toronto, ON.

🌿 Founder of JOSIE, Naturopathic Clinic | 🦋 Thyroid, Hashimoto’s & Integrative Cancer Care ND 🎗️ | 💉 IV Iron 🩸 & Vitamin Therapy 💧| 🎁 FREE Optimal Thyroid Lab Analyzer 👉🏼 links.welljosie.com

09/03/2026

Levothyroxine is great at doing what it is designed to do: replace missing thyroid hormone and bring your TSH back into that standard lab range.

But here is where so many people get stuck. Your TSH can look completely "normal" on paper, while you are still sitting there struggling with hair loss, fatigue, brain fog, and weight changes.

Why? Because taking a pill to manage TSH doesn't automatically fix a leaky gut, clear up a sluggish liver, balance your insulin, or restore your ferritin levels.

We have got to stop breaking the body down into separate, disconnected pieces. Your thyroid doesn't exist on its own island! Nutrient deficiencies, gut inflammation, fatty liver, and blood sugar spikes all directly impact how your body actually uses thyroid hormone.

If you are only looking at TSH, you are missing 90% of the bigger picture. Real healing happens when we stop treating individual lab numbers and start looking at the body as one whole, connected system.

Comment THYROID below for more info!👇🏼

09/01/2026

Biotin can artificially lower your TSH and spike your T3 and T4. On paper, it looks exactly like hyperthyroidism, even if your thyroid is perfectly healthy.

A study showed that 10mg of biotin, interfered with nearly 40% of tests. Your daily multivitamin or B-complex supplement is likely fine as those usually don’t contain anywhere near 10mg of biotin, but high-dose ‘hair and nail’ supplements will easily throw off your numbers. The fix is incredibly simple: stop taking biotin 7 days before your scheduled blood work. Double check your supplement labels, because if biotin is below 10mg, it’s likely not having an impact on your thyroid results.

👇🏼 Comment THYROID if you want more info on how to best interpret your thyroid labs

08/27/2026

The blanket advice to automatically cut out gluten is treated as a universal, one size fits all rule for Hashimoto’s, when it absolutely shouldn't be.

The problem is that the reason people are given for cutting it out is often entirely incorrect, which spreads massive misinformation. While a gluten free diet can be highly beneficial for some individuals, nutrition is deeply individual. Instead of defaulting to restrictive protocols based on incorrect information, the goal should be investigating your specific gut health and individual triggers to support your unique terrain.

👇🏼 Did you cut out gluten after your diagnosis? Tell me in the comments below!

08/24/2026

Your thyroid and your gut are in a constant, two-way conversation.

The research is clear that you can’t fully support your thyroid without addressing the state of your digestive tract. Your gut plays a key role in thyroid hormone recycling: thyroid hormones are processed by the liver, released into the gut through bile, and then unlocked by your gut bacteria so they can be reabsorbed back into circulation. When your gut lining is compromised or inflammation is high, this recycling process is disrupted, leaving you feeling exhausted and stuck — even if your TSH looks fine on paper.

👇🏼 Ready to see if your thyroid numbers are actually optimal? Comment THYROID below and I'll send over my free Lab Analyzer.

08/19/2026

Does your thyroid cause restless legs, or is it just low iron? 🦵🏼

The answer is actually both.

Research shows that people with hypothyroidism have nearly double the rate of Restless Legs Syndrome (RLS). But the missing link most people overlook is iron. Your thyroid literally relies on iron to produce thyroid hormones; if your iron is depleted, your thyroid function tanks right along with it.

When it comes to restless legs, the research is clear: your ferritin (stored iron) needs to be above 75 to even begin correcting the symptom. Yet, more than 1 in 3 menstruating women have a ferritin level below 30.

If your ferritin isn’t sitting at least at 100, you cannot fully rule out low iron as the primary driver behind your restless legs.

If you're dealing with Hashimoto's and RLS, checking your TSH isn't enough. You need a comprehensive iron panel with ferritin to look at the whole terrain.

👇🏼 Comment THYROID below to get access to my FREE Optimal Thyroid Lab Analyzer

08/13/2026

Stop chasing a "perfect" FT3 number 🛑

There’s a huge trend right now around pushing FT3 to the absolute top of the lab range. But hyper-focusing on that one number can do more harm than good.

Here is what happens when you push your T3-containing medication dose too high:

→ Your blood work is just a snapshot. Pushing for a "perfect" number can create tissue-level hyperthyroidism. If you have anxiety, heart palpitations, or insomnia, your body is telling you it's too much.
→ Morning, fasted, pre-dose labs show your lowest T3 level of the day. Once you take your medication, that number spikes much higher. If you're already at the top of the range while fasting, you're likely overmedicated the rest of the day.
→ Forcing free T3 to the top usually suppresses your TSH. Doing this long-term increases your risk for bone loss and heart issues like A-fib.

👇🏼Comment THYROID below if you want to know if your thyroid levels are where they should be

08/11/2026

Just some food for thought, pun intended.

08/07/2026

Hashimoto’s looks completely different for everyone. One person might be dealing with fatigue and brain fog that makes getting through the day feel impossible, while someone else is struggling with stubborn weight gain, hair thinning, or constant joint pain.

Since thyroid hormones control the metabolic pace of literally every single cell in your body, a flare can trigger symptoms that disrupt almost any system. Pinpointing your specific presentation is the first step in figuring out which root factors need the most support.

👇🏼 What is the number one worst symptom you are dealing with right now? Let me know in the comments below!

TSH ranges at different stages of life are not all created equal. Although the lab report doesn't show this breakdown, i...
08/03/2026

TSH ranges at different stages of life are not all created equal. Although the lab report doesn't show this breakdown, it can't be ignored.

✅Trying to conceive or pregnant?

TSH should be below 2.5 mIU/L. The American Thyroid Association and American College of Obstetricians and Gynecologists both recommend this target. A large cohort study of over 2.5 million women (Yang et al., JAMA Network Open 2021) found that preconception TSH between 0.37–2.50 mIU/L was associated with the lowest risk of adverse pregnancy outcomes, including miscarriage.

✅On Levothyroxine or NDT?

TSH target should be 1.0-2.0 mIU/L. A survey of 880 endocrinologists (Burch et al., JCEM 2014) found the most commonly preferred target was 1.0-1.9 mIU/L.

✅Over 65?

A higher TSH (up to 4-7 mIU/L) may actually be protective. A study (Taylor et al., 2024) found that a high-normal TSH is associated with reduced mortality risk in older adults, and that overtreatment increases the risk of atrial fibrillation and osteoporosis. A meta-analysis (Zhong et al., Endocrine Practice 2023) confirmed that mildly elevated TSH in adults over 60 was NOT associated with increased cardiovascular or all-cause mortality.

Your TSH target depends on YOU — your age, your goals, and your medications. Don't let a generic lab range be the final word 🦋

My Optimal Thyroid Lab Analyzer takes ALL of this into consideration, and if you comment THYROID, I’ll send it to you for free 🤗

07/30/2026

Taking a thyroid medication that contains T3 (i.e., NDT or Cytomel), before your blood test absolutely skews specific numbers.

Armour (which is known as ERFA in Canada - both of which are brand names for desiccated thyroid) contains both T4 and T3. Since T3 is incredibly fast-acting, it spikes in your bloodstream within 2 to 5 hours after you take it. At an hour and a half post-dose, your numbers were already on the rise.

→ TSH: Likely still accurate. TSH moves slowly and doesn't shift much in a few hours.
→ Free T3: This will look artificially high. NDT contains a high ratio of T3, which peaks quickly and throws this specific marker off.
→ Free T4: Might be slightly elevated, but T4 doesn't spike the same way T3 does.

The golden rule is to always get your blood drawn before taking your morning dose to see where your baseline actually sits. If your FT3 comes back high on this test, it’s likely just a timing issue, not always a reason to change your dose.

👇🏼 Comment THYROID below to get access to my FREE Optimal Thyroid Lab Analyzer

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