Prehrana for ChatGPT and Claude

What is Prehrana

Prehrana is a food diary. You describe what you ate in words, and calories, macronutrients and other nutrients are estimated from the description or calculated from the food catalogue. You see how far you are from your goal, how your weight is trending and how much water you drank, and in groups you can compete with friends. Prehrana is not a medical device and does not give health advice.

What the connector can do

Through the connector, the assistant gets these tools. Tools that delete or change data are marked as such, so ChatGPT and Claude can ask for your confirmation before using them.

Logging and correcting food

• dodaj_unos Logs the food and drinks you described, with estimated nutrients.
• ispravi_unos Changes an existing entry, for example the amount, the meal or the day.
• obrisi_unos Deletes one entry from the diary.

Daily and weekly summaries and recommendations

• dnevni_pregled Calories, macronutrients and all entries for one day, compared with your goal.
• tjedni_pregled Averages and a day-by-day overview for one week.
• preporuka_za_danas How much you need today, given the last seven days.
• sazetak Averages, weight trend and most frequent foods over a given number of days.
• prehrambeni_obrasci Everything calculated for a period: daily totals, food types and a quality score.
• povijest_namirnice How many times and when you ate a particular food.
• zapisi_analizu Saves the assistant's conclusion in the app, so you can see it outside the conversation.
• dohvati_analize Reads previously saved conclusions.

Goals

• dohvati_ciljeve Reads your current goal and earlier goals.
• postavi_cilj Sets a new goal for calories, macronutrients and weight.
• obrisi_cilj Deletes a goal from the history.

Weight and notes

• upisi_tezinu Logs weight and waist measurement for one day.
• upisi_biljesku Logs a note, energy level and hours of sleep for one day.

Water

• voda_za_dan How much water you drank that day and what your goal is.
• upisi_vodu Adds water you drank.
• ispravi_vodu Changes the amount or day of a water entry.
• obrisi_vodu Deletes one water entry.
• postavi_vodu Changes the daily water goal or turns water tracking on and off.
• povijest_vode Water day by day over a given number of days.

Food catalogue

• trazi_namirnicu Looks up a food in the catalogue, so the numbers aren't estimated from scratch.
• dodaj_namirnicu Adds a food to the catalogue, with values per 100 g.

Group members' shared meals

• dan_clana_grupe Reads what a member of your group logged for one day. Works only when you both share meals with the group and that member has allowed assistants to see them. Changes nothing.

Feedback to the developer

• posalji_prijedlog Sends a suggestion, question or problem report to the developer of Prehrana.

Requirements

A Prehrana account with an active trial or subscription. You create the account at prehrana.app. When access is not active, the tools say so, and your diary and all your data stay saved in the app.

Connecting in Claude

1. In Claude, open Settings → Connectors.
2. If Prehrana is in the list of connectors, select it and click Connect. If it isn't, click Add custom connector, enter the name Prehrana and the server URL:https://prehrana.app/mcp
3. The Prehrana sign-in page opens. Enter the e-mail and password of your Prehrana account and click Prijavi se i odobri (Sign in and approve).
4. In a conversation, check that Prehrana is enabled in the tools menu, then tell it what you ate.

The connector is added in the browser. Once added, it also works in Claude's mobile and desktop apps.

Connecting in ChatGPT

1. Open Prehrana in ChatGPT, or in ChatGPT open Plugins and search for Prehrana.
2. Click Install plugin. The Prehrana sign-in opens. Enter the email and password of your Prehrana account and approve access.
3. In a conversation, pick Prehrana in the tools menu or mention it by name.

Examples

Write the way you'd tell a friend. For example:

• “Log two eggs and a slice of bread for breakfast.”
• “How am I doing today?”
• “Set my calorie goal to 2000.”
• “I drank half a litre of water.”
• “I weighed 82.4 kg this morning.”

Privacy

The connector sees only your own diary and the meals that members of your groups have allowed assistants to see. Requests come from the service you connected, and whatever Prehrana returns is processed by that service under its own terms. The text you used to describe the food is saved with each entry. Everything about your data is in the privacy policy.

Troubleshooting

• The assistant doesn't see Prehrana. Check that the connector is enabled in that conversation. If it is and the tools still don't work, remove the connector and add it again.
• Sign-in fails. You sign in with your Prehrana e-mail and password, not with your ChatGPT or Claude account. If you sign in to Prehrana without a password or have forgotten it, set a new one at prehrana.app, then connect again.
• The assistant says access is not active. Your trial or subscription has ended. You can see the status in the app, under Settings → Subscription.
• New tools don't show up. ChatGPT sees new tools only after you click Refresh in the connector settings and start a new conversation.
• Disconnecting. Remove the connector in ChatGPT or Claude settings. To make Prehrana refuse all connected services right away, change your password under Settings → Profile and account → Password. This revokes all connector access; you can connect again with the new password.

Support

Questions and bug reports: support page. You can also ask the assistant in a conversation to send a suggestion or problem report to the developer.