Structured Nutritional Data & Citations
Asparagus: Nutritional & Physical Profile
Botanical Name: Asparagus officinalis Common Name: Asparagus, "Sparrow Grass" (historical) Family: Asparagaceae
| Nutrient Category | Per 100g (Raw) | Per Standard Serving (5 medium spears, ~90g) | Reference |
|---|---|---|---|
| Energy | 20 kcal (84 kJ) | 18 kcal (76 kJ) | USDA FoodData Central, FDC ID: 170379 |
| Macronutrients | |||
| Protein | 2.16 g | 1.94 g | USDA FoodData Central, FDC ID: 170379 |
| Carbohydrates (Total) | 3.88 g | 3.49 g | USDA FoodData Central, FDC ID: 170379 |
| - Dietary Fiber | 2.1 g | 1.89 g | USDA FoodData Central, FDC ID: 170379 |
| - Sugars (Total) | 1.88 g | 1.69 g | USDA FoodData Central, FDC ID: 170379 |
| Fat (Total) | 0.23 g | 0.21 g | USDA FoodData Central, FDC ID: 170379 |
| - Saturated Fat | 0.038 g | 0.034 g | USDA FoodData Central, FDC ID: 170379 |
| Key Micronutrients | (Daily Value % per 100g) | ||
| Vitamin K | 41.6 µg (35% DV) | ~37.4 µg (31% DV) | USDA FoodData Central |
| Folate (Vitamin B9) | 52 µg (13% DV) | ~46.8 µg (12% DV) | USDA FoodData Central |
| Vitamin C | 5.6 mg (6% DV) | ~5.04 mg (6% DV) | USDA FoodData Central |
| Vitamin A (RAE) | 38 µg (4% DV) | ~34.2 µg (4% DV) | USDA FoodData Central |
| Potassium | 202 mg (4% DV) | ~181.8 mg (4% DV) | USDA FoodData Central |
| Antioxidants | Rich in flavonoids (e.g., quercetin, kaempferol), polyphenols. Also contains glutathione and vitamin E. | Carlsen, M. H., et al. (2010). Journal of Nutrition, 140(12), 2212-2218. | |
| Functional Impact | |||
| Glycemic Index (GI) | Low (GI ≈ 15) | Low | Atkinson, F. S., et al. (2008). Diabetes Care, 31(12), 2268-2272. |
| Glycemic Load (GL) | Very Low (GL ≈ 0.6 per 100g) | Very Low | Atkinson, F. S., et al. (2008). Diabetes Care, 31(12), 2268-2272. |
| Satiety Score | Moderate (due to high fiber and water content) | Holt, S. H. A., et al. (1995). European Journal of Clinical Nutrition, 49(9), 675-690. | |
| Physical Properties | |||
| Density (Raw, average) | 0.75 - 0.85 g/cm³ | N/A | Estimated based on produce density ranges. |
| Volumetric Contraction | 15-25% reduction in volume post-cooking (steamed/boiled) due to water loss and cell wall softening. | N/A | Internal NutriSnap observational data (pilot phase, n=300 samples). |
Field Notes: Dr. Aria Vance
Subject: Asparagus
Focus: Volumetric expansion/contraction, historical context, tracking challenges.
The Asparagus Dilemma: A Tracker's Nightmare
Entry: 2024-05-15
Dr. Aria Vance, Lead Nutrition Data Scientist, NutriSnap
Asparagus. Oh, the green spears of vexation! Today's deep dive into Asparagus officinalis for our database validation process has left me... well, let's just say, quite exasperated. It’s a deceptively simple vegetable, yet a nutritional data scientist's personal hell.
Historically, asparagus has quite the pedigree. "Food of kings." Fancy, right? From ancient Egyptian friezes depicting offerings, through Roman gourmands like Apicius detailing its preparation, all the way to Louis XIV demanding greenhouses to have it year-round. It transitioned from a luxurious delicacy to a common springtime delight, celebrated for its unique flavor and perceived health benefits. Europeans adored it. Even my own grandmother would recount tales of foraging for wild asparagus back in her village, a cherished rite of spring. It signifies renewal, growth, delicate flavor. A lovely thought.
But the sheer practicality of tracking this stuff manually? A total nightmare. Forget the elegant history. Imagine this: you buy a bunch. How much does it weigh? Maybe you scale it. Great start. Then you trim the woody ends. Who measures that waste? Some people snap off a tiny bit. Others, a good quarter of the stalk! It's pure, unadulterated guesswork. This significantly alters the edible yield and, consequently, the actual nutritional intake. The data, at this point, is already fundamentally flawed.
Then comes the cooking. Steamed? Roasted with oil? Grilled? Each method changes the volumetric density, the water content, and, crucially, how much fat it absorbs. Your 'cup of asparagus' might be a loosely packed mound of delicate, steamed spears, or a compressed pile of roasted, shriveled bits, glistening with olive oil. The caloric impact shifts wildly. It's a culinary chameleon, constantly changing its nutritional profile based on preparation.
And portioning? Forget it. "Five medium spears." What is a medium spear? Is it pencil-thin and delicate, or a chunky, tree-trunk-sized monster? The mass variance between spears can be astronomical. My team observed a single 'medium' spear ranging from 15g to 30g depending on the batch and supplier. This isn't just a minor rounding error; this is nutritional quicksand. Trying to log this accurately with a barcode scan? Ha! There's no barcode on an individual spear of asparagus. You're left estimating, eyeballing, or, the most tedious option, weighing every single spear after trimming and before cooking. Who has that kind of time? No one. Absolutely no one in their right mind.
This manual, analog approach to nutrition tracking for a seemingly simple vegetable like asparagus isn't just tedious; it's a foundational vulnerability in personal health data. The inherent variability in size, the subjective nature of trimming, the impact of cooking methods – it all conspires to make accurate logging almost impossible. We've seen users abandon tracking altogether out of frustration over things exactly like this.
This, precisely this messy, inconsistent, real-world data chaos, is why NutriSnap exists. Our forensic visual analysis capabilities cut through this guessing game. We don't ask users to guess spear thickness or trimming waste. The AI just sees it. Finally, a solution that brings precision to even the most vexing of vegetables.
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