Medication articles

The supplement shelf, graded like prescriptions.

Most patients arrive with a cabinet: a shelf of bottles bought on hope, each one marketed harder than it was studied. Supplements sit outside the prescription system, so nobody is assigned to ask the prescription questions about them: what is this for, how strong is the evidence, how is it dosed, and what does it collide with? This guide asks all four about the five supplements I actually use in practice, and grades each one the way I would want a prescriber to grade anything I swallow daily.

How the grades work

Three grades, and one dosing rule

The grades are plain words on purpose. Worth using means the evidence and clinical experience point the same way for a defined job. Reasonable bet means the early evidence is genuinely promising and the risk is low, while the honest verdict is still out. Handle with care means the substance behaves like a drug, with drug-grade interactions, and belongs under supervision or not at all. Nothing on this page gets graded as a treatment for an illness by itself; supplements here support medication plans, they do not replace them.

The dosing rule matters more than any single grade: a supplement dose is set at the visit, against your labs, your medication list, and the symptom being targeted, then judged over weeks with the same measures used for prescriptions. So this guide describes how each item is dosed in practice, the logic and the shape of it, rather than printing a personal number for a reader it has never met. Anyone who sells you a dose without knowing your list is guessing with your body. One more piece of housekeeping: supplements are not covered by insurance plans, so they sit outside the verification process described at the practice hub under practice fees, which is one reason the practice dispenses only through Fullscript, whose catalog is independently quality-tested.

The five, one by one

What each one does, and what it costs you in caution

Magnesium glycinate: worth using

The workhorse of the shelf. Magnesium is involved in the nervous system's braking system, and the glycinate form is chosen for a practical reason: it is absorbed well and is gentle on the stomach, where cheaper forms announce themselves rudely. The form matters enough to say a sentence about it: the magnesium aisle is mostly magnesium oxide, which the body absorbs poorly and the bowel tolerates worse, so a large share of the people who "tried magnesium and it did nothing" tried, in effect, very little magnesium. Glycinate binds the mineral to an amino acid the gut handles calmly, which is why it is the form specified here and the form on the Fullscript list. In this practice it is used mostly for anxious tension that lives in the body, and for sleep that will not deepen. The evidence is best read as supportive rather than dramatic, which is exactly what a support tool should be. Dosing is usually an evening pattern, started low and adjusted by response. Interactions are modest but real: magnesium can interfere with the absorption of certain antibiotics and thyroid medication, so it is spaced a few hours away from them, and because the kidneys clear magnesium, kidney disease changes the answer and gets asked about first.

L-theanine: a reasonable bet, close to worth using

An amino acid from tea leaves, and the rare supplement whose felt effect matches its description: calm without sedation, focus without a stimulant's edge. Patients use it for daytime anxiety, for the wired feeling that rides along with a demanding job, and to take the jitter off caffeine without giving the caffeine up. It does not knock anyone out, which makes it one of the few calming agents compatible with a workday. The trial evidence is smaller than the magnesium literature and smaller than its reputation, so it keeps the "reasonable bet" grade honestly. Dosing is daytime, sometimes split, and the interaction list is short: it can nudge blood pressure down slightly and can add to anything sedating, both worth a line in the chart rather than a worry in the night.

N-acetylcysteine (NAC): a reasonable bet, evidence still gathering

NAC is a precursor to glutathione, one of the body's own antioxidant systems, and it has been studied across a wide psychiatric territory: compulsive and habit patterns, cravings, and mood support as an add-on rather than a lead actor. The results are genuinely mixed, strong in some corners and flat in others, and this guide will not pretend otherwise. Where it earns its place here is the combination of a plausible mechanism, a benign safety profile, and patients for whom the standard levers have been pulled already. The main cost is gastrointestinal: nausea and stomach upset at higher doses, eased by splitting the dose and taking it with food. It interacts with very little, which is part of its appeal, and it still goes on the medication list, because "interacts with little" is a finding, not an exemption.

Low-dose lithium orotate: handle with care

The most serious item on this page, and the one that separates a prescriber's guide from a wellness blog. Lithium is an element with a long psychiatric history at prescription doses, where it is a powerful, closely monitored medication. The orotate form is sold over the counter at trace doses, a small fraction of a prescription amount, on the idea that trace lithium supports mood steadiness. The interest is real; the trial data at these doses is thin, and this practice says so out loud. What is not thin is the interaction profile, because the element is the element at any dose: anti-inflammatory painkillers, common diuretics, and several blood pressure medications can raise lithium levels, dehydration concentrates it, and it must never be layered casually on top of prescription lithium. Kidney and thyroid function are part of the conversation before it starts, not after. Used at all, it is used at low doses, with the prescriber fully in the loop. That is what "handle with care" means: not forbidden, never casual.

Omega-3s: worth using, with a quality asterisk

Fish oil is the most studied supplement in the mood literature, and the fairest summary is that the evidence supports it as an adjunct for mood, with the EPA portion of the oil doing most of the interesting work. Dosing is therefore counted in EPA and DHA content, not in capsules, because two bottles with the same front label can carry very different amounts of either. The asterisk is quality: oils oxidize, and a rancid capsule is a small insult delivered daily, which is why sourcing through a quality-tested catalog matters more for this item than for any other on the page. Interactions are the familiar ones for anything that mildly thins the blood: at higher doses, patients on blood thinners should expect a conversation about bruising and bleeding, and everyone should expect to take it with food unless they enjoy being reminded of the ocean.

The questions I ask before anything joins the shelf

Before any of the five is added to a real patient's list, the same intake questions run. What is the full current list, prescriptions, over-the-counter habits, and the bottles a previous clinician suggested three years ago that never got stopped? What do the kidneys and liver look like on recent labs, since they clear most of what this page discusses? Is pregnancy in the picture or in the plans, given how thin the safety data is for most supplements there? Is surgery coming, since several common supplements are paused ahead of anesthesia as a matter of routine caution? And what, precisely, is the target symptom, stated in a sentence a follow-up visit can grade? A supplement that cannot answer that last question is not a treatment yet. It is a hope with a barcode.

Patients are sometimes surprised that a prescriber who stocks a supplement shelf is also the person most likely to empty it. Both halves come from the same habit: everything a patient swallows on a schedule is part of the medication plan, whether a pad was involved or not, and everything on the plan has to keep justifying its seat. The brands change as quality data changes. The standard does not: defined job, graded evidence, a dose chosen on purpose, interactions checked against the whole list, and a follow-up where the thing has to show its work.

The grades themselves are not permanent either. Supplement evidence moves, usually slowly, occasionally in a landslide when a large careful trial contradicts a decade of small enthusiastic ones. When that happens, the honest response is to re-grade in the open and tell the patients currently using the item what changed and what it means for them. That conversation is only possible because the shelf is short and every item on it is there for a stated reason. It is the same conversation this practice has about prescriptions when their evidence moves, and patients deserve it at the same standard, from the same person, in the same visit.

Keep reading

Where this shelf lives in the larger workup