Dietary Energy Consumed

Dietary Energy Consumed records energy logged from food and beverages. It is intake, distinct from Active Energy Burned and Basal Energy Burned. HealthKit defines a cumulative energy quantity; PulsHealth stores kcal. One food-label Calorie is one kilocalorie; 1 kcal equals 4.184 kJ. See Apple's definition.

A food entry may represent a serving, recipe, meal or daily total. Portion estimates, food database selection and duplicated imports can change the total. A missing breakfast or a day without entries is incomplete evidence, not a measured calorie deficit. FDA's Nutrition Facts explanation notes that label serving size is not a recommended portion and the 2,000-calorie reference is general guidance rather than an individualized need.

The rough check 4 × protein(g) + 4 × carbohydrate(g) + 9 × fat(g) can identify a unit or serving mismatch when all four logs cover the same foods and source. Exact agreement is not required. Label calculations can use specific factors, fiber or sugar-alcohol adjustments and rounding. Alcohol and incomplete nutrient entries also matter. The FDA labeling regulation describes permitted calorie calculations; a reconstruction cannot establish how a source app calculated its value.

Cadence follows meal logging or syncing, rather than metabolic absorption. A sample's duration is not digestion time. Samples at midnight can be daily summaries; samples saved in a batch can share timestamps. Summing a daily total together with its component meals can count the same intake twice.

Food intake and energy expenditure are separate estimates with different coverage and errors. A food log minus active calories alone omits resting expenditure. Even intake minus resting and active estimates should not be presented as a measured energy balance unless boundaries, sources and completeness are understood. Food timestamps describe logged entries, not when energy was absorbed or used.

The researched 365-day reporting window contained no raw consumed-energy samples and no stored consumed-energy aggregates. Intake ranges, outliers, logging cadence, macro reconciliation and workout or sleep comparisons were unavailable. The investigation cannot infer fasting, under-fueling or an energy deficit from those missing records.

Use consistent portions and inspect Health's data sources. Analyze sums within a source and state how many days have usable logs. Compare trends only across similar logging periods; body-weight changes do not validate individual meal estimates. Treat a sudden jump after changing apps as a provenance question before interpreting it as a dietary change.