Structured Nutritional Data & Citations
Sweet Potato (Ipomoea batatas) - Nutritional & Physical Profile
Nutritional Breakdown
Per 100g (Raw, Edible Portion)
| Nutrient Group | Amount | Unit |
|---|---|---|
| Energy | 86 | kcal |
| Protein | 1.6 | g |
| Carbohydrates | 20.1 | g |
| - Dietary Fiber | 3.0 | g |
| - Sugars | 4.2 | g |
| Total Fat | 0.1 | g |
| Water | 77.3 | g |
Per Standard Serving (1 Medium Sweet Potato, Baked, Approximately 114g)
| Nutrient Group | Amount | Unit |
|---|---|---|
| Energy | 100 | kcal |
| Protein | 2.0 | g |
| Carbohydrates | 23.0 | g |
| - Dietary Fiber | 3.8 | g |
| - Sugars | 6.7 | g |
| Total Fat | 0.2 | g |
| Water | 80.0 | g |
Key Micronutrients
Vitamins
- Vitamin A (as Beta-carotene): Extremely high; >100% Daily Value (DV) per serving. Crucial for vision, immune function, and skin health.
- Vitamin C: High; ~30% DV per serving. Antioxidant, collagen synthesis.
- Vitamin B6: Good source; ~20% DV per serving. Metabolic functions, neurotransmitter synthesis.
- Vitamin B5 (Pantothenic Acid): Good source.
Minerals
- Potassium: High; ~15% DV per serving. Electrolyte, blood pressure regulation.
- Manganese: Good source; ~20% DV per serving. Bone health, antioxidant defense.
- Copper: Good source.
- Magnesium: Moderate source.
Antioxidants & Phytonutrients
- Beta-carotene: Precursor to Vitamin A, powerful antioxidant. Responsible for orange pigment.
- Anthocyanins: Present in purple-fleshed varieties; potent anti-inflammatory and antioxidant properties.
- Chlorogenic Acid: Phenolic compound with antioxidant activity.
Functional Impact
- Glycemic Index (GI):
- Boiled: 44-61 (Low to Moderate)
- Baked/Roasted: 70-94 (High)
- Note: GI varies significantly by cooking method, variety, and ripeness.
- Glycemic Load (GL):
- Per 100g (boiled): ~10 (Moderate)
- Per 100g (baked): ~20 (High)
- Satiety Score: Moderately high due to complex carbohydrates, dietary fiber, and water content, contributing to sustained energy release and fullness.
Physical Properties
- Density (Raw, peeled): Approximately 1.0-1.1 g/cm³
- Volumetric Contraction After Cooking:
- Baking/Roasting: 15-25% due to significant moisture loss.
- Boiling: Minimal contraction, some water absorption if overcooked. Density may slightly decrease if substantial water is absorbed.
Citations & References
- USDA FoodData Central, SR Legacy (FoodID: 170377, 170378, etc. for various preparations). U.S. Department of Agriculture.
- Liu, R. H. (2013). Health benefits of fruit and vegetables are from additive and synergistic combinations of phytochemicals. The American Journal of Clinical Nutrition, 78(3), 517S-520S.
- 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.
Field Notes: Dr. Aria Vance
Subject: Sweet Potato
Focus: Volumetric expansion/contraction, historical context, tracking challenges.
The Elusive Nature of Tracking Sweet Potato
My desk is a graveyard of half-eaten snacks and hastily scribbled notes, all casualties in the unending war against dietary imprecision. Today's target: Ipomoea batatas, the humble, yet infuriatingly complex, sweet potato. What a marvel! It’s not just a root; it’s a living testament to human history, crisscrossing oceans with ancient mariners, feeding civilizations from Polynesia to the Peruvian Andes long before Columbus. Its deep, vibrant hues – sunset orange, royal purple, creamy white – aren't just pretty. They whisper tales of diverse phytochemical profiles, of anthocyanins in the Okinawan variety, beta-carotene bursting from a Beauregard. Each a slightly different nutritional blueprint. A beautiful, delicious problem.
This very diversity, however, is a nightmare for manual nutrition tracking. You want to log "one medium sweet potato"? What is "medium"? Is it the size of my fist? A toddler's head? A fat cat? These are not scientific units of measure. A barista at my local coffee shop could probably give you a more accurate estimation of your latte's milk volume than most folks could peg a sweet potato’s weight.
Then, the cooking methods. Oh, the agony! A sweet potato baked for an hour, its sugars caramelizing, its water evaporating, leaving behind a denser, sweeter, more calorically concentrated form. This isn't the same beast as one you've boiled until tender, where it might even absorb a little extra water, shifting its density, altering its glycemic response entirely. One could be a gentle stroll for your blood sugar; the other, a roller coaster. Weighing it raw, then peeled, then after cooking, accounting for moisture loss and trimming – who, I ask you, who has the time or the monastic discipline for that daily? Barcodes? They tell you nothing about the preparation. Cups? Try accurately measuring a cup of mashed sweet potato versus a cup of diced. The interstitial air, the packing density – it’s a farce! The sheer friction. It grinds down even the most zealous nutrition enthusiast, leading to wildly inaccurate logs or, more commonly, total abandonment.
This is precisely why I championed the development of NutriSnap. Because the human eye, aided by sophisticated AI, can decode these mysteries. It’s not just recognizing "sweet potato"; it's a forensic visual analysis. The contours, the relative size against a plate or surrounding items, the subtle browning on the skin that hints at a baked preparation. Our algorithms are learning to estimate density shifts, water loss, even detect subtle differences in variety. It’s the difference between guessing your meal and knowing it, without lifting a scale or fumbling with measuring cups. Finally, we're building a bridge over the chasm of dietary uncertainty. It truly changes the game.
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