Amy Myers MD Review: Real Conditions, Protocol Names That Are Not Diagnoses

This is the section worth reading, and it applies to the whole functional medicine supplement sector rather than this brand specifically. SIBO — small intestinal bacterial overgrowth — is a real, recognised condition. It is diagnosed by breath testing (or aspirate culture), and the first-line treatment is antibiotics — commonly rifaximin — not supplements. It is genuinely under-recognised and it is genuinely treatable. If you think you have SIBO, the useful action is a breath test and a gastroenterologist, not a bundle. Thyroid disease is real, common, and eminently testable. Hypothyroidism and Hashimoto's thyroiditis are diagnosed on TSH, free T4 and thyroid antibodies, and hypothyroidism is treated with levothyroxine, a cheap, effective and well-understood drug. This is the protocol we would be most careful about, because fatigue, weight change, hair loss, cold intolerance and low mood are exactly the symptoms that send people to "thyroid support" supplements — and they are also the symptoms of an underactive thyroid that a blood test would identify in a day. A supplement that makes you feel slightly better while an untreated thyroid condition progresses is a bad outcome. A specific and important caution on thyroid supplements generally: many contain iodine, and iodine can worsen thyroid disease in some people, including precipitating hypothyroidism in Hashimoto's. Some products sold in this category have also been found to contain actual thyroid hormone, which is dangerous unsupervised. Do not take a thyroid supplement without knowing your thyroid status. Autoimmune disease is real and serious, and requires diagnosis and, in many cases, treatment that alters disease course. Supplements do not treat autoimmune disease. Diet and lifestyle can genuinely affect how people feel, and that is worth something — but it is an adjunct, and delaying rheumatology or gastroenterology assessment is how joint damage and bowel damage become permanent. Perimenopause is real and often badly managed. Symptoms are treatable, and hormone therapy has a substantially more favourable evidence base than most people were led to believe. Anyone spending money on perimenopause supplements should first have a proper conversation with a clinician about what actually works. "Leaky gut" needs unpicking, because it is half-true. Intestinal permeability is a genuine, measurable physiological property, and it is altered in coeliac disease, inflammatory bowel disease, and after certain injuries. That is real science. What is not established is "leaky gut syndrome" as a standalone diagnosis causing fatigue, brain fog, joint pain and food sensitivities in otherwise well people, or that supplements repair it and resolve those symptoms. The phenomenon is real; the syndrome as marketed is not a recognised diagnosis. "Candida overgrowth" as a systemic condition in healthy people is not recognised. Candida causes real infections — thrush, oesophageal candidiasis, invasive candidiasis — mostly in people who are immunocompromised or have specific risk factors, and those are diagnosed and treated with antifungals. The idea that widespread systemic candida overgrowth causes fatigue, bloating and brain fog in otherwise healthy people has been examined and is not supported.

Setting the framing aside, several of the ingredient categories here are perfectly reasonable and a couple have decent evidence. L-glutamine, common in gut formulas, is the amino acid enterocytes preferentially use. The evidence for supplementation improving gut symptoms in healthy people is limited, though it is used in specific clinical contexts. Probiotics have genuinely strain-specific evidence — that is the key point most brands obscure. Specific strains have evidence for specific things: some for antibiotic-associated diarrhoea, some for IBS symptoms, some for infant colic. "Probiotic" as a category claim means nothing. Look for the full strain designation — genus, species and strain code, such as Lactobacillus rhamnosus GG — and check what that specific strain was studied for. A product listing only genus and species is not telling you enough. Also note: people who are immunocompromised or critically ill should not take probiotics without medical advice. Collagen is popular and the evidence is more modest than the marketing. There is reasonable evidence for skin elasticity and joint comfort in some trials, and the mechanism is debated since collagen is digested into amino acids like any protein. It is a protein supplement with some specific-peptide research behind it. Organic greens and reds powders are convenient and are not equivalent to eating vegetables — you lose the fibre volume and the satiety, and the doses of individual compounds are usually modest. Fine as a supplement to a diet; poor as a substitute. Vitamins and multivitamins are worth taking when you are deficient or at risk. Vitamin D where sunlight is limited, B12 in vegans and people on metformin, folate in pregnancy, iron in diagnosed deficiency — those are evidence-based uses. Routine multivitamins in well-nourished people have repeatedly failed to show benefit in large trials, which is worth knowing before buying a bundle. On "physician-formulated". It means a physician was involved in choosing the ingredients. It does not mean the formula was tested in a trial, and it does not carry regulatory weight. A more useful question is: is the product third-party tested for identity, potency and contaminants, and does it carry a third-party quality certification? Ask for that. On the founder narrative. "Conventional medicine failed me and I found another way" is a genuinely common and often legitimate experience — plenty of people, especially women, are dismissed and undiagnosed for years, and that frustration is real and justified. It is also a powerful sales frame, and both things are true simultaneously. The right response to having been dismissed is a better clinician, not the abandonment of testing.

The site states it "accepts HSA and FSA payments for all products." That statement is worth reading carefully, because accepting a card is not the same as the expense being eligible. How HSA and FSA eligibility actually works. The IRS determines what is a qualified medical expense. Most dietary supplements are not qualified expenses by default, because they are considered general health items rather than treatment for a specific condition. A supplement can become eligible where it is recommended by a medical practitioner to treat a specific diagnosed medical condition — and demonstrating that typically requires a Letter of Medical Necessity (LMN) from a clinician, stating the condition, the recommended product and the duration. What "we accept HSA/FSA payments" actually means in practice. The merchant's payment processing will accept the card. Whether the expense is qualified is between you and the IRS, and if it is not, you may face tax and a penalty on the amount if audited or if your administrator reviews the claim. So the practical advice is: Get a Letter of Medical Necessity from your own clinician before paying for supplements with HSA or FSA funds, and keep it with your records. Keep itemised receipts. If you have no LMN and no diagnosed condition, consider paying with ordinary funds rather than assuming eligibility from a merchant's banner. On the commercial structure more broadly. Free shipping on subscriptions and orders over $100, 25% off a first subscription order, an "Inner Circle", bundles and protocol packages. None of that is improper — it is standard supplement retail. But protocol bundles are how spend escalates, because a bundle addresses a named condition rather than a specific deficiency. The cheaper and more useful sequence is: get tested, find out what is actually wrong, then buy only what addresses it. And confirm the subscription terms: that cancellation works from your account without contacting anyone, the renewal date, and the refund position on unopened product.

What does Amy Myers MD cost? Products around $49.97 to $57.97, with free shipping on subscriptions and orders over $100 and 25% off a first subscription order. Is leaky gut a real condition? Intestinal permeability is a real, measurable physiological property, altered in conditions such as coeliac disease and inflammatory bowel disease. "Leaky gut syndrome" as a standalone diagnosis causing fatigue, brain fog and food sensitivities in otherwise well people is not a recognised diagnosis. Is systemic candida overgrowth real? Candida causes real infections, mostly in people who are immunocompromised or have specific risk factors, and those are diagnosed and treated with antifungals. Widespread systemic overgrowth causing fatigue and brain fog in healthy people is not supported. Is SIBO real? Yes. It is diagnosed by breath testing and first-line treatment is antibiotics, commonly rifaximin. See a gastroenterologist. Should I take a thyroid supplement? Not without knowing your thyroid status. Test TSH, free T4 and thyroid antibodies first. Some thyroid supplements contain iodine, which can worsen thyroid disease, and some have been found to contain actual thyroid hormone. Do probiotics work? Effects are strain-specific. Look for the full strain designation and check what that strain was studied for. Immunocompromised people should seek medical advice first. Does collagen work? There is reasonable evidence for skin elasticity and joint comfort in some trials, more modest than the marketing suggests. Are these HSA/FSA eligible? Accepting the card is not the same as the expense qualifying. Most supplements require a Letter of Medical Necessity from a clinician for a diagnosed condition. What does "physician-formulated" mean? That a physician chose the ingredients. It does not mean the formula was tested in a trial, and it carries no regulatory weight. What should I do first? Get tested. Fatigue, weight change and brain fog have several common, testable, treatable causes — thyroid disease, anaemia, diabetes, coeliac disease and depression among them.