In this episode, Dr. David Jockers sits down with Dr. Cassie Smith, a dual board-certified endocrinologist, founder of Modern Endocrine, and author of the book Fix Your Gut, Fix Your Hormones, to uncover why so many people still feel terrible despite being told their labs are normal.
You will learn why a TSH test alone misses so many thyroid problems, how stress, medications, insulin resistance and gut dysbiosis block the conversion of T4 into active T3, and the optimal lab ranges Dr. Cassie uses for TSH, free T4, free T3, reverse T3, thyroid antibodies, fasting insulin and ferritin.
Dr. Jockers and Dr. Cassie also cover how your gut, liver and lymphatic system clear toxins and excess estrogen, the simple test for low stomach acid you can do at home, the key nutrients and supplements for thyroid and gut repair, and the evening wind-down routine that helps Dr. Cassie fall asleep and wake up rested.
"Vitamin D, zinc and selenium have all been shown to reduce thyroid antibodies and improve thyroid hormone levels."
00:00 Why Thyroid Takes Ten Years
00:27 Podcast Intro and Dr. Cassie
04:30 Fix Your Gut, Fix Your Hormones
05:51 Hidden Thyroid Symptoms
07:54 Why TSH Alone Falls Short
08:35 T4 Savings, T3 Checking
09:25 What Blocks T4 Conversion
10:11 Functional vs Clinical Hypothyroid
11:24 Progesterone Loss by 40
12:19 Outer Eyebrow Hair Loss
13:01 Optimal Thyroid Lab Ranges
15:09 Free T4 and Reverse T3
16:27 The Gut Thyroid Connection
17:45 Stress, Vagus Nerve, Immunity
19:06 Liver, Bile and Toxins
22:15 Pee and Poop to Health
23:21 Lymph and Estrogen Recycling
25:12 Top Nutrition Strategies
26:31 Hydration and Fiber Goals
27:32 Don't Drink With Meals
28:28 When Fiber Backfires
30:55 Boosting Digestive Juices
31:58 Low Stomach Acid and Heartburn
34:00 Baking Soda Stomach Test
36:28 Stomach Acid and Relaxed Eating
38:21 Iodine, Selenium and Thyroid
40:39 Gut Supplements and Peptides
41:37 Butyrate and Gut Oxygen
43:13 Dr. Cassie's Daily Foods
47:19 Protein Timing and Lighter Dinners
48:50 Evening Wind Down Routine
51:06 Epsom Salt Baths
52:05 Labs Most Doctors Miss
53:35 Where to Find Dr. Cassie
54:12 Advocate for Yourself
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If you are interested in being a guest on the show, we would love to hear from you! Please contact us here! - https://drjockers.com/join-us-dr-jockers-functional-nutrition-podcast/