For most of this market the intake form is not a step in the clinical encounter. It is the clinical encounter. Of the 286 sellers written up here, 189 record an intake, questionnaire or online assessment as the route to a prescription, and 19 publish how long theirs takes — a span running from two minutes to ten. The interesting question is not whether that is enough time. It is what kind of instrument a form is, and which facts about a person that kind of instrument can reach at all.
Sorting the facts by their kind rather than by their clinical weight produces a picture that cuts against the obvious one. It is not the case that a form is a weak version of a consultation. On one class of fact it is exactly as good, and on another no amount of consultation would help either. Which conditions actually matter is a separate subject, set out in the contraindications article; this page is about the instrument.
Declared: the part a form does well
A declared fact is one that exists only in the patient’s own knowledge. Whether a relative had a particular cancer, whether a previous drug caused a reaction, whether a pregnancy is planned, what else is in the medicine cabinet, whether there has been abdominal surgery. Nothing in a clinic makes these facts more available. A physician sitting across a desk asks the question and writes down the answer, which is precisely what a text field does.
This matters more than it first appears, because the small number of things the semaglutide and tirzepatide labels rule out absolutely are all of this type. They are history, not findings. So the instrument is at its strongest exactly where the stakes are highest and the rule is not negotiable, and at its weakest in the much longer territory where the label asks a prescriber to weigh and monitor rather than to refuse. That is the opposite of the intuitive worry, and it is worth holding onto before reading anything below as an argument that forms are dangerous.
The limit on a declared fact is not the format. It is whether the question appears, and whether the answer is true — and a form has one structural weakness a conversation does not. A person filling in a checkout flow that ends in a shipment has an incentive to answer in the direction that keeps the flow moving, and nothing in the interface pushes back on a convenient answer.
Measured: the part no form reaches, and no camera either
A measured fact is a number an instrument returns. Kidney function, which has its own set of considerations. Blood glucose over the last three months. Thyroid hormone. Weight on a calibrated scale rather than a remembered one. These are not available to any interview, however long, because interviews do not produce numbers.
The entry criterion for this entire category is itself a measured fact that almost every seller takes on report. A systematic review of 50 studies from 25 countries, covering 173,971 participants, compared what people said their weight category was against the category calculated from measured height and weight. The share who classified themselves correctly ranged from 16% to 83% depending on the population, most errors were underestimates, and in European studies women overestimated their category three times as often as men — risk ratio 3.22 (95% CI 2.87 to 3.62).[1] Only 8 of the 286 sellers here record a stated body-mass threshold at all, and a threshold applied to a self-reported figure is a filter on what someone believes rather than on what is true.
Observed: what an examination finds and a questionnaire cannot
The third class is what a trained person notices in the room. A lump felt in the neck. Tenderness in an abdomen. Something visible at the back of an eye. No question phrased any way retrieves these, because the person answering does not have the information.
The clearest published measurement of what this costs comes from another drug class entirely, which is why it is useful: it isolates the instrument. A retrospective review at an andrology clinic examined 388 men aged 40 or under who came in for a condition heavily marketed by direct-to-consumer platforms. Office evaluation found prediabetes or diabetes in 20%, dyslipidemia in 54% and hypogonadism in 20%; varicoceles were present in 35%, and of 64 semen analyses performed, 40% were abnormal.[2] The authors’ conclusion is the sentence that transfers: office consultation identified men with significant comorbidities that would be missed by platforms which employ only questionnaires for health screening.
That cohort is not a GLP-1 cohort and those findings are not GLP-1 findings. What carries across is the shape of the loss. A questionnaire did not fail to ask a better question; it was structurally unable to generate the class of information the office visit generated.
What the forms in this market actually collect
The most systematic audit of direct-to-consumer intake behavior remains a simulated-patient study in dermatology. Structured cases were submitted to 16 platforms, producing 62 clinical encounters, and the findings are about process rather than about skin. Not one site asked for identification or raised any concern about a pseudonym or an altered photograph. Only 26% disclosed anything about the clinician’s licensure. The name of an existing primary care physician was collected in 23% of encounters and records were offered to that physician in 10%. Prescriptions were issued in 31 of the 48 encounters that produced a diagnosis, and relevant adverse effects were discussed in 10 of those 31.[3]
Two of those figures describe a gap that has nothing to do with eligibility. An intake that never learns who else is treating a person, and never sends anything to them, leaves the prescription invisible to the rest of that person’s care — which is a different failure from prescribing to the wrong person, and a more common one.
The gap is a lab, not a camera
Sellers in this category are usually compared on whether a live visit is involved. 26 of the 286 written up here record a video visit somewhere in the process and 14 record an explicitly asynchronous route with no video required; whether that route is lawful turns on the state, which is the subject of the state-rules article. As a measure of clinical reach, though, that axis is close to irrelevant. A video call is excellent at confirming that a person exists and can describe their own history. It returns no measured value whatsoever.
The variable that does change the reach is bloodwork, and it is the field this market most often leaves alone. Lab position could be established from the seller’s own published pages for 125 of the 286 write-ups here. Of those, 100 state nothing about bloodwork at all, 14 sell or bill it separately, and 11 describe it as included in the price. Whatever else distinguishes one storefront from another, four fifths of the ones whose position is knowable are not generating a measured fact before the first shipment. What each company publishes is recorded in the individual seller write-ups.
Where the form sits in the purchase
Order matters as much as content. In 10 of the 286 write-ups the medical intake arrives after checkout rather than before it — the product and often the strength are chosen in a cart, payment is taken, and the health questions appear on the confirmation page or by email. Nothing about that sequence is unlawful and in most such cases the prescription is still contingent on the review that follows. It does change what the form is for. A questionnaire that runs before a payment is a gate; one that runs after a payment is a condition on a completed sale, and the person filling it in has already spent the money.
Who is on the other end of it is worth stating plainly. 117 of the 286 write-ups record that a licensed clinician reviews the submission, frequently within a stated window of twenty-four hours. The population arriving at these forms is not a healthy one: a cross-sectional study of 20,000 patients using a direct-to-consumer telehealth service for weight management found that 40.18% reported at least one weight-related comorbidity, and that 32.13% had a body-mass index in the 25 to 29.9 range rather than the obesity range.[4] A large minority of the people a form is screening have something else going on.
What none of this establishes
Coverage is not census. The 286 write-ups record what each seller publishes on the pages examined, not a complete audit of every page on every site, so each figure above is a floor on how often a practice occurs rather than a measurement of how often it does not. A lab policy that is unstated may be unstated on the website and entirely present in the process.
Nothing here identifies any seller as unsafe, and nothing here is a finding about any individual company’s clinical judgment. The argument is narrower and it is about instruments: a form is a good instrument for declared history, a poor one for verification, and no instrument at all for measurement or examination — and for the majority of this market no second instrument is added. That sits on top of the regulatory position, which does not change with the quality of the intake. Compounded drugs are not FDA-approved, and the agency does not verify the safety, effectiveness or quality of compounded drugs before they are marketed.[5] What that sentence means in practice is set out in the approval article, and the standard behind every count on this page is in the methodology.
The practical use of the taxonomy is in deciding what to volunteer. On a declared fact, the form is the only channel that exists and an omission is permanent. On a measured fact, the useful question before the first charge is whether any measurement happens at all, and if not, whether a recent result from elsewhere can be uploaded and read by the person signing the prescription.