Structured Nutritional Data & Citations
Turmeric (Curcuma longa) - Nutritional Profile & Functional Impact
1. Macronutrient Breakdown
| Nutrient | Per 100g (Dried, Ground Powder) | Per Standard Serving (1 tsp / ~2.1g) |
|---|---|---|
| Calories | 354 kcal | 7.4 kcal |
| Protein | 7.83 g | 0.16 g |
| Carbohydrates | 64.93 g | 1.36 g |
| Fiber | 21.1 g | 0.44 g |
| Sugars | 3.21 g | 0.07 g |
| Fat (Total) | 9.88 g | 0.21 g |
| Saturated | 3.12 g | 0.07 g |
| Monounsaturated | 1.83 g | 0.04 g |
| Polyunsaturated | 2.19 g | 0.05 g |
Reference: USDA FoodData Central, SR Legacy 2018, FDC ID: 170940 (Spices, turmeric, ground)
2. Key Micronutrients (per 100g - Dried, Ground Powder)
Vitamins
- Vitamin B6: 0.107 mg (8% DV)
- Vitamin C: 2.6 mg (3% DV)
- Vitamin E: 4.43 mg (30% DV)
- Vitamin K: 13.4 µg (11% DV)
- Folate (B9): 20 µg (5% DV)
- Niacin (B3): 1.82 mg (11% DV)
Minerals
- Manganese: 7.829 mg (340% DV) - Crucial for antioxidant defense and bone health.
- Iron: 41.42 mg (230% DV) - Essential for oxygen transport.
- Potassium: 2525 mg (54% DV)
- Magnesium: 193 mg (46% DV)
- Phosphorus: 268 mg (21% DV)
- Zinc: 4.5 mg (41% DV)
- Copper: 0.605 mg (67% DV)
Antioxidants & Bioactive Compounds
- Curcuminoids: The primary active compounds, including Curcumin, Demethoxycurcumin, and Bisdemethoxycurcumin. These polyphenols are responsible for turmeric's vibrant color and much of its functional impact.
- Volatile Oils: Turmerones (aromatic turmerone, turmerone, atlantone), Zingiberene.
3. Functional Impact
- Glycemic Index (GI): Low (Estimated <10 for a typical serving)
- Glycemic Load (GL): Very Low (Estimated <1 for a typical serving)
- Note: Due to its minimal carbohydrate content and small serving size, turmeric has a negligible impact on blood glucose levels.
- Satiety Score: Primarily indirect. Turmeric contributes to meal satisfaction through its flavor profile and potential digestive support. It does not directly contribute significant caloric satiety due to its low caloric density per serving.
4. Physical Properties
- Density (Dried, Ground Powder): Approximately 0.7 g/cm³
- Note: This can vary slightly based on grind fineness and moisture content.
- Volumetric Contraction After Cooking/Hydration: Negligible for dried ground powder. When used in typical culinary applications, its volume remains stable. Fresh turmeric root, however, would exhibit minor contraction due to water loss during cooking.
References:
- U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, 2019. fdc.nal.usda.gov. FDC ID: 170940 (Spices, turmeric, ground).
- National Institutes of Health, Office of Dietary Supplements. Dietary Supplement Fact Sheets. ods.od.nih.gov.
Field Notes: Dr. Aria Vance
Subject: Turmeric
Focus: Volumetric expansion/contraction, historical context, tracking challenges.
The Elusive Spice: Why Turmeric Is a Manual Tracking Nightmare
Dr. Aria Vance, Lead Nutrition Data Scientist, NutriSnap.
The ancient world knew secrets we’re only now scratching the surface of. Turmeric. Not just a spice; it’s a legend. Its vivid ochre stain, the earthy, slightly bitter embrace it brings to a dish—utterly captivating. For millennia, in the sun-baked lands of India, it wasn't merely food. It was medicine. A dye. A sacred offering. A cornerstone of Ayurvedic practice, revered for its supposed anti-inflammatory prowess, its healing touch. People didn’t track its macros then, did they? They simply… consumed it.
But here we are, in the 21st century, trying to parse every morsel. And turmeric, this golden enigma, becomes an immediate pain point. A logistical nightmare for anyone, like me, obsessed with precision.
Consider the user experience of logging this in a conventional app. "Add 1 tsp turmeric." Fine, if you're using perfectly level, calibrated spoons from a jar of uniform powder. But what about the reality? "Just a pinch!" you declare, seasoning your dal. How many grams is that? Is it 0.5 grams? 1 gram? The difference is small, sure, but it adds up when every component of your diet demands similar estimates. Then there's the fresh root, gnarly and fibrous, a vibrant orange beneath its rough skin. You grate it into a morning smoothie, or thinly slice it into a curry. How do you quantify that? Do you weigh the whole root, then subtract the unused portion? Who has time for such forensic culinary accounting before their first cup of coffee?
The density of the fresh root, its moisture content, the subtle variations in curcuminoid concentration depending on cultivar and growing conditions—these are variables the average consumer (or even a diligent nutritionist) simply can't, and won't, account for. We're talking about a spice often used in quantities so minute, yet with a biochemical impact so disproportionate to its caloric contribution, that traditional "barcode scanning" or "cup measuring" just... falls apart. It’s an exercise in futility. You might as well guess. And that, my friends, defeats the whole purpose of tracking.
This constant frustration, the perpetual estimation game with such an historically significant ingredient, was precisely why the vision of NutriSnap resonated so profoundly with me. Forget the tedious manual inputs, the guesswork, the constant second-guessing of your own measuring ability. With NutriSnap, you don't need to know the volumetric contraction of fresh turmeric after a 10-minute simmer. You just snap a picture. The AI, with its remarkable forensic visual analysis, extrapolates. It identifies the presence of that golden spice, estimates its volume, factors in its context within the dish, and provides an astonishingly accurate nutritional breakdown. Finally. A solution that handles the subtle, the complex, the traditionally unquantifiable aspects of our plates. The future of dietary tracking isn't about precise measurements in the kitchen; it's about intelligent visual interpretation in real-time. This changes everything.
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