Structured Nutritional Data & Citations
Olive Oil: Nutritional Profile & Physical Properties
Macronutrient Breakdown
| Component | Per 100g (USDA SR Legacy, NDB No: 04053) | Per 1 Tablespoon (13.5g) |
|---|---|---|
| Energy | 884 kcal (3699 kJ) | 119 kcal (499 kJ) |
| Protein | 0.0 g | 0.0 g |
| Carbohydrates | 0.0 g | 0.0 g |
| Fat (Total) | 100.0 g | 13.5 g |
| - Saturated | 13.8 g | 1.86 g |
| - Monounsaturated | 72.9 g | 9.84 g |
| - Polyunsaturated | 10.9 g | 1.47 g |
Reference: USDA FoodData Central, Food ID: 173570, "Oil, olive"
Key Micronutrients & Bioactive Compounds
- Vitamins:
- Vitamin E (alpha-tocopherol): 14.35 mg (96% DV) per 100g.
- Vitamin K (phylloquinone): 60.2 µg (50% DV) per 100g.
- Minerals: Trace amounts; not a significant source of minerals.
- Antioxidants & Phenolic Compounds:
- Polyphenols (e.g., Oleuropein, Hydroxytyrosol, Tyrosol)
- Squalene
- Phytosterols
- Carotenoids (trace amounts)
Reference: European Food Safety Authority (EFSA) Scientific Opinion on the health claims related to olive oil and maintenance of normal blood LDL-cholesterol concentrations, and protection of LDL particles from oxidative damage (2011). USDA FoodData Central, Food ID: 173570.
Functional Impact
- Glycemic Index (GI): 0 (As pure fat, olive oil has no impact on blood glucose levels.)
- Glycemic Load (GL): 0
- Satiety Score: High. Fats contribute significantly to satiety and delay gastric emptying. While not formally rated on a universal scale like the Satiety Index, dietary fat is well-established for its role in hunger regulation.
Reference: Brand-Miller, J.C., et al. (1995). "The Satiety Index of common foods." European Journal of Clinical Nutrition, 49(9), 675-690 (indirectly supports fat's satiety role).
Physical Properties
- Density: Approximately 0.916 g/cm³ at 20°C.
- Volumetric Contraction After Cooking:
- Olive oil expands upon heating (e.g., ~0.0007-0.0008 cm³/cm³/°C).
- Upon cooling from typical cooking temperatures (e.g., 180°C) back to room temperature (20°C), it contracts by approximately 0.7% to 0.8% of its volume at peak temperature. For practical dietary tracking, this volumetric change is often considered negligible for an individual serving, though it can impact precise industrial measurements.
Reference: Food Chemistry, 4th Edition (2007) by O.R. Fennema; IUPAC. "Kinematic viscosity and density of olive oils as a function of temperature" (2009).
Field Notes: Dr. Aria Vance
Subject: Olive Oil
Focus: Volumetric expansion/contraction, historical context, tracking challenges.
The Manual Tracking Problem
Dr. Aria Vance, Lead Nutrition Data Scientist, NutriSnap
Olive oil. Ah, the very essence of the Mediterranean, that shimmering, verdant liquid gold that has lubricated civilizations for millennia. From ancient Crete's storage amphorae to a modern chef's delicate drizzle, its journey is epic. A cornerstone of health, yes, often lauded for its monounsaturated fats and polyphenol punch. It's truly a nutritional superstar. My grandmother swore by a daily spoonful. She lived to ninety-eight. Coincidence? Maybe. But the reverence is real.
Yet, for all its storied glory and documented health benefits, tracking this culinary chameleon manually? A nightmare. An absolute, unmitigated quagmire of numerical approximation and hopeful guesswork. Try telling someone to log their "drizzle." What is a drizzle? Is it a light shower? A steady stream? It's a behavioral black hole, a metric purgatory! A tablespoon is a theoretical measurement, sure, but who actually weighs their olive oil? Practically no one. And measuring it in a spoon? The viscosity varies with temperature. A chilled EVOO pours differently than one left on the counter. Slight variations. They add up. Every little bit counts. This isn't just about caloric intake; it's about accurate fat ratios in a diet over weeks, months.
Imagine the average person cooking. They’re sautéing some vegetables. Glug, glug. A liberal pour, perhaps. They might think it's two tablespoons. But is it? Really? Sometimes it clings to the pan, sometimes it absorbs into porous food like a sponge, a greedy little fat-sucking sponge. It’s not just the volume in the bottle; it's the consumed volume that matters. And for someone trying to meticulously manage their macro intake for athletic performance or a specific health goal, this imprecision is a silent saboteur. A single "overestimated" drizzle, repeated daily, can throw caloric intake off by hundreds over a week. A hundred! It's astonishing.
This slippery beast defies traditional methods. Barcodes? Useless for "how much." Scales? Impractical mid-stir. Volumetric cups? Prone to user error, especially when that oil wants to cling to the sides. It's a behavioral sinkhole for data integrity. The sheer frustration I've witnessed, the exasperated sighs from clients trying to be diligent. It drives me mad.
This is precisely where NutriSnap truly shines. Our AI doesn't ask "how much did you guess?" It sees. Forensic visual analysis, that's the key. A quick photo, pre-pour and post-pour, or even during a drizzle, allows our algorithms to quantify, with remarkable accuracy, the volume of that liquid gold. The AI accounts for surface tension, container geometry, even the degree of absorption into common foodstuffs. No more guesswork. No more "maybe I used too much." It’s a game-changer. Finally, the true story of that delicious, elusive fat is told.
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