Fourteen nutrients as standard

Calories are the default metric in AIM and the one every meal card leads with. Estimated from a photo or a description in seconds, editable by hand, and offset by the active energy AIM reads from Apple Health.

Protein is the metric most people open a tracker for. AIM estimates it per ingredient rather than per meal, so a swap of chicken for tofu shows up where it happened.

Carbohydrate, broken out per ingredient, with fiber and sugar tracked separately so “carbs” does not have to mean three different things at once.

Total fat per meal, with saturated fat tracked separately as a cap — because they are two different questions and one number cannot answer both.

Fiber is the nutrient most people are short on and least likely to have a field for. In AIM it is a standard metric with its own goal and its own color on every chart.

Sugar is a cap in AIM, not a goal — a number to stay under, with a warning at the meal that takes you past it rather than a bar that keeps cheerfully filling.

Tracked as a cap, separately from total fat, because the two numbers answer different questions and most dietary guidance is about this one.

A cap, defaulting to 2,300 mg a day. Most sodium is not the salt shaker, which is why an estimate from the meal itself is more useful than a note to “use less salt”.

Dietary cholesterol as a cap, defaulting to 300 mg a day — tracked because people are asked to track it, with a note on what current guidance actually says.

A goal, not a cap — most people fall short. Potassium is the counterweight to sodium in blood pressure guidance and is missing from most macro trackers entirely.

A standard metric with a 1,000 mg daily goal — worth watching on a dairy-free or plant-based diet, where the shortfall is easy to miss.

An 18 mg daily goal by default. One of the most common reasons someone starts tracking a specific nutrient — usually after a blood test.

A 90 mg daily goal. Easy to hit, easy to lose to cooking — and useful to pair with iron, because it improves absorption of the plant kind.

Water is a nutrient in AIM, not a glass counter — estimated from every meal including the water in the food itself, which is roughly 20–30% of most people's daily intake.