Nutrition Glossary
Every metric, diet pattern and concept SmartyDiet uses, defined in plain language.
- Smarty Nutrition Score™
- A composite 0–100 score of a user's current diet across macro balance, micronutrient coverage, food quality, and eating behavior.
- Smarty Metabolic Age™
- An estimate of the age a user's metabolism is behaving like, derived from BMR, body composition, activity, and dietary patterns.
- Smarty Macro Index™
- How closely a user's actual protein, carb and fat intake matches the optimal split for their body and goal.
- Smarty Nutrition Intelligence™
- The AI engine that combines assessment, scoring, personalization and adaptive coaching across the SmartyDiet platform.
- BMI (Body Mass Index)
- Weight in kilograms divided by height in meters squared. A population-level screening metric, not a diagnosis.
- BMR (Basal Metabolic Rate)
- Calories the body burns at complete rest to keep vital functions running. SmartyDiet uses the Mifflin-St Jeor equation.
- TDEE (Total Daily Energy Expenditure)
- BMR multiplied by an activity factor — total calories burned per day including movement and exercise.
- Macronutrients
- Protein, carbohydrates and fats — the energy-providing nutrients measured in grams and calories.
- Micronutrients
- Vitamins and minerals required in small amounts for enzyme function, immunity, bone health and energy metabolism.
- Calorie Deficit
- Eating fewer calories than TDEE. Sustained deficit is the physiological driver of fat loss.
- Calorie Surplus
- Eating more calories than TDEE. Required alongside resistance training for meaningful muscle gain.
- Maintenance Calories
- Calorie intake equal to TDEE, holding body weight stable over time.
- Glycemic Index
- A ranking of carbohydrate foods by how quickly they raise blood glucose relative to pure glucose.
- Protein Timing
- Distributing protein across the day (typically 3–5 meals of 20–40 g) to maximize muscle protein synthesis.
- Meal Frequency
- The number of eating occasions per day. Total intake matters most; frequency is a preference and adherence lever.
- Intermittent Fasting
- Time-restricted eating patterns such as 16:8 or 5:2 that compress daily calorie intake into a shorter window.
- Mediterranean Diet
- An eating pattern rich in vegetables, legumes, whole grains, olive oil, fish and moderate dairy, with limited red meat.
- Ketogenic Diet
- A very-low-carb, high-fat pattern that shifts primary fuel from glucose to ketone bodies.
- Nutrient Density
- The amount of beneficial nutrients per calorie of food. Vegetables, fish and legumes are examples of high nutrient density.
- Whole Foods
- Foods eaten close to their natural state, with minimal industrial processing.
- Ultra-Processed Foods
- Industrial formulations combining refined ingredients and additives — typically high in calories and low in nutrient density.
- Fiber
- Indigestible plant carbohydrate that supports satiety, glucose control and gut microbiome health.
- Hydration
- Adequate daily fluid intake to support circulation, temperature regulation and cognitive function.
- Portion Control
- Managing serving sizes so total intake matches calorie targets without needing to eliminate food groups.
- Mindful Eating
- Eating with attention to hunger, fullness and food quality, reducing distraction-driven overconsumption.
- Metabolic Flexibility
- The body's ability to switch between using fats and carbohydrates as fuel based on availability and demand.