Paano Kalkulahin si Portion Size
Ano ang Portion Size?
Portion size calculators distribute daily calorie goals across meals and macronutrients. Research shows people consistently underestimate portion sizes by 20–50%.
Pormula
USDA serving size: 1 oz meat ≈ thumb tip; 1 tsp fat ≈ thumb tip; 1 cup vegetables ≈ fist; 1 oz starch ≈ handful; Actual portions often 2–3x serving size
- ServingSize
- USDA defined serving (oz, cup, or tbsp)
- ActualPortion
- What you actually eat (Amount (often multiple servings))
Step-by-Step na Gabay
- 1Calories per meal = Daily target / meals per day
- 2Protein: 4 kcal/g; carbs: 4 kcal/g; fat: 9 kcal/g
- 3Balanced: ~25% protein, 45% carbs, 30% fat
- 4Visual guides are more practical than weighing every meal
Mga Nalutas na Halimbawa
Input
2,000 kcal, 3 meals/day
Resulta
~667 kcal/meal; ~42g protein, 75g carbs, 22g fat
Mga madalas itanong
What's the difference between serving size and portion?
Serving = nutrition label recommendation (often small). Portion = what you actually eat (often 2–3 servings). Confusion here causes people to consume 2–3x intended calories.
How do I estimate portions visually?
Hand-based guide: palm = 1 protein serving, fist = vegetable, thumb = fat, cupped hand = carbs. Rough but useful. For weight loss, err smaller; for athletes, larger.
Are larger portions always bad?
Depends on food. Vegetables: eat more (low calorie). Oils/cheese: stick to serving (high calorie). Whole grains: 1–2 servings reasonable (high fiber). Quality + quantity both matter.
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