Structured Nutritional Data & Citations
Deep Dive: Sour Cream
Nutritional Profile (USDA Data Reference: SR Legacy, FoodGroup 0100 - Dairy and Egg Products)
Sour cream, a fermented dairy product, is characterized by its distinct tangy flavor and thick texture, resulting from the fermentation of regular cream with lactic acid bacteria. Its nutritional composition varies based on fat content (regular, light, fat-free). The data below focuses on Sour Cream, Regular (approx. 18-20% Milkfat).
| Metric | Per 100g | Per Standard Serving (2 tbsp / 30g) |
|---|---|---|
| Calories | 198 kcal | 59 kcal |
| Macronutrients | ||
| Protein | 2.8g | 0.8g |
| Carbohydrates | 4.6g | 1.4g |
| (of which Sugars) | 3.2g | 1.0g |
| Total Fat | 19.3g | 5.8g |
| (of which Saturated) | 11.2g | 3.4g |
| Micronutrients (Key) | ||
| Vitamin A | 177 IU (53 mcg RAE) | 53 IU (16 mcg RAE) |
| Vitamin B2 (Riboflavin) | 0.17 mg | 0.05 mg |
| Vitamin B12 | 0.10 mcg | 0.03 mcg |
| Calcium | 98 mg | 29 mg |
| Phosphorus | 99 mg | 30 mg |
| Potassium | 134 mg | 40 mg |
| Selenium | 1.0 mcg | 0.3 mcg |
| Antioxidants | Lactic acid bacteria metabolites, some CLA | |
| Functional Impact | ||
| Glycemic Index (GI) | Low (~20-30, estimated due to high fat) | Low |
| Glycemic Load (GL) | Very Low (e.g., ~1 for 100g) | Very Low |
| Satiety Score | High (due to high fat and creamy texture) | Moderate-High (depending on portion size and meal context) |
| Physical Properties | ||
| Density | ~0.99 - 1.02 g/cm³ | |
| Volumetric Contraction | Minimal (negligible for typical cold usage); | |
| after cooking | Significant curdling may occur if heated too | |
| rapidly or to high temperatures without | ||
| stabilization (e.g., with starch). Volume loss | ||
| primarily due to water evaporation. |
References:
- USDA FoodData Central. (n.d.). Sour cream, regular. FDC ID: 2075636. Retrieved from https://fdc.nal.usda.gov/fdc-app.html#/food-details/2075636/nutrients (Access date: October 26, 2023).
- Atwater, W. O., & Woods, C. D. (1896). The chemical composition of American food materials. U.S. Department of Agriculture, Office of Experiment Stations. Bulletin No. 28. (Foundation for caloric and macronutrient calculation methods).
- Foster-Powell, K., Holt, S. H. A., & Brand-Miller, J. C. (2002). International table of glycemic index and glycemic load values: 2002. The American Journal of Clinical Nutrition, 76(1), 5-56. (Used for general GI/GL principles applied to dairy fats).
Field Notes: Dr. Aria Vance
Subject: Sour Cream
Focus: Volumetric expansion/contraction, historical context, tracking challenges.
The Manual Tracking Problem: The Case of Sour Cream
Entry 10.26.2023 Dr. Aria Vance, Lead Nutrition Data Scientist, NutriSnap.
The humble dollop of sour cream. So innocent, so ubiquitous, yet a colossal headache for accurate dietary tracking. I swear, sometimes I think these seemingly simple ingredients are designed by some mischievous entity just to spite our data collection efforts. My exasperation is palpable.
Consider its journey: a cultural cornerstone stretching back to Eastern European dairies. Fermented cream, a marvel of microbial alchemy. Its very name, smetana in Slavic languages, speaks to a rich, thick, deeply comforting history. It’s slathered on borscht, piled onto pierogi, cooling the fiery embrace of chili. It’s not merely a condiment; it’s an experience. A creamy, tangy counterpoint.
But oh, the tracking. The horror. People scoop it. They plop it. They spread it. No one, and I mean no one, precisely measures that perfect 30-gram serving. It’s always an approximation. A guesstimate. A hopeful blob. Think about it: a spoon can be anywhere from a teaspoon to a dessert spoon, brimming or scraped. The consistency itself—thick, viscous, clinging—makes for wildly inconsistent volumetric measurements. It doesn't pour. It globs. Trying to get a level spoon without air pockets is a fool's errand. You think a kitchen scale is the answer? Good luck scraping every last molecule of that sticky, fatty goodness onto the scale, then back off, then onto your food, without losing a few grams to the spoon, the counter, or your inevitable taste test. The sheer kinetic energy involved! It’s a messy process, prone to human error and utter frustration.
Then there's the context. It's almost always an addition. A topping. A swirl. Rarely is it the star, meticulously portioned like a steak. You're scooping it onto a potato, into a soup, onto nachos. It’s part of a larger, often complex, meal. Barcode scanning helps for the container, sure, but what about the actual amount consumed? A barcode doesn't measure volume. It doesn't account for the "just a little more" impulse. The emotional pull of that extra swirl.
This, this right here, is why our current tracking paradigms are fundamentally broken. They demand an unrealistic level of precision and diligence from users already overwhelmed by life. Who has time to meticulously weigh every single dollop? It’s tedious. It's soul-crushing.
This is precisely where NutriSnap proves itself invaluable. Our forensic visual analysis. Snap a photo. Let the AI do the heavy lifting. No more battling with sticky spoons or questioning the true density of a creamy swirl. It sees the sour cream, it analyzes the context, it provides the data. Finally, a solution that truly understands the glorious, messy reality of eating. A game-changer, plain and simple.
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