The message that lands at 11 p.m.
Someone decides to lose weight on a Sunday night. They search for a nutritionist nearby, find your profile, and message you on WhatsApp. It is 11:14 p.m. You are asleep, with your family, or simply off the clock.
That person does not wait until morning. They message three other nutritionists too. Whoever replies first, clearly and without friction, wins the consultation.
At Catalizadora we see this pattern in almost every nutrition practice: demand does not arrive during office hours. It arrives the moment a person finally decides, and that rarely lines up with 9 to 5. The problem is not a shortage of patients. The problem is that they cool off between the message and the reply.
The obvious fix is to hire someone to answer. But a receptionist costs money, takes time off, gets sick, and still does not work at 2 a.m. For a one or two person practice, that expense does not add up. So we built something else.
An AI agent that answers like you
What we build is an artificial intelligence agent that lives in your WhatsApp and replies in your practice's voice. It is not a press-1-for-appointments menu. It is a real conversation: the patient asks, and the agent answers the way you or your assistant would.
This matters especially in nutrition, where the patient's decision is emotional and cools off fast. Whoever writes at 11 p.m. has finally decided to change something. If they hit a wall of silence, that decision evaporates before Monday. The agent captures that exact moment.
The agent does four concrete things in every conversation:
1. Replies instantly, at any hour
It does not matter if it is Sunday at midnight. The agent greets the patient, answers questions about your services, consultation prices, in-person or online formats, and what a plan includes. The patient never waits. It answers with the information you gave it, without making things up; if something needs your clinical judgment, it says so clearly and hands the conversation to you.
2. Qualifies the patient
Not everyone who writes is the same. One wants to lose weight, another has diabetes and needs management, another wants sports nutrition. The agent asks what it needs to understand the case and whether your practice is the right fit, without you screening every message.
3. Books the consultation
When the patient is ready, the agent offers available slots and books directly. No more back-and-forth of "Tuesday at 4?" "No, Thursday is better." It closes right there.
4. Sends the payment link
If you charge for the consultation or take a deposit up front, the agent sends the payment link in the same conversation. The patient pays without leaving WhatsApp.
And just as important: every conversation lands in your CRM. You know who wrote, what they need, where the conversation ended, and whether they booked. Nothing gets lost in the chat.
What changes in numbers
We will not invent metrics from other clients. But the math of the problem is simple and you can run it with your own data.
Say you get 40 new WhatsApp messages a month. If you only reply during office hours, some of those messages arrive at night or on weekends, and a share of those people have already gone elsewhere by the time you answer. Every consultation that cools off is income that never comes in.
Compare the two routes:
- Hiring someone: monthly salary, benefits, training, and even then it does not cover the late nights or the Sundays. It is a fixed cost that grows with each person.
- An AI agent: we build it once, it becomes yours, and the monthly operation is pass-through (hosting plus tokens), on the order of $200 to $400 USD per month, with no markup from us. It is not a salary. It is infrastructure.
The deeper difference: a person scales linearly (more volume, more people). The agent handles 1 or 100 conversations at once with nothing changing. During peak seasons (January, the post-vacation rush, the start of summer) that difference shows even more: exactly when the most messages arrive is when a single person gets overwhelmed, and the agent does not break a sweat.
There is a second cost almost nobody counts: your time. Every hour you spend answering "how much is the consultation?" or "do you see patients online?" is an hour you are not with a patient who already paid. The agent absorbs that repetitive work and gives you back your hours for what only you can actually do.
How we build it
We use our MAGIA methodology: Mapping, Architecture, Generation, Implementation, and Autonomy. In practice, for a nutrition practice it looks like this:
- Mapping: we learn how you talk to patients, what they ask, how you charge, and how you book today.
- Architecture and Generation: we build the agent in your practice's voice, connected to your calendar, your payments, and your CRM.
- Implementation and Autonomy: we put it live on your WhatsApp and hand it over working, ready to run on its own.
We deliver it in 15 days with the MAGIA Solo package, which costs $4,500 USD. If your operation is larger and needs more integrated pieces, MAGIA Core is $15,000 USD.
One point we want to make clear: the code, the data, and the infrastructure are 100% yours. No retainers, no locked licenses, no permanent dependence on us. We build it, we hand it over, and it is yours.
Visibility in search engines, when relevant, we handle with a proprietary technical layer; that is a separate matter we discuss based on your case.
The next step
If you are losing patients today because messages arrive when you cannot reply, this gets solved without hiring anyone. The agent answers, qualifies, books, and collects, around the clock, in your practice's voice.
The best way to see it is to talk it through. Message our AI agent on WhatsApp (yes, the same kind of agent we would build for you) or book a direct call with Pablo here: https://cal.com/pablo-estrada-hlqaql
In 15 minutes you will know whether it makes sense for your practice.