Sweet Potato
Score
Sweet potato is a starchy root vegetable exceptionally rich in beta-carotene (provitamin A) and fiber, providing sustained energy with a low glycemic impact when boiled.
Why Sweet Potato scores 84
Nutrition
per_100g
Health benefits
Reduced cardiovascular disease and mortality risk
strong evidenceHigh beta-carotene and other carotenoids reduce oxidative stress and endothelial dysfunction, while potassium (475mg/100g) supports healthy blood pressure regulation
Improved glycemic control and reduced type 2 diabetes risk
moderate evidenceSoluble fiber (pectin) slows glucose absorption, and compounds like chlorogenic acid improve insulin sensitivity
Enhanced gut microbiota diversity and colonic health
moderate evidenceResistant starch formed in cooled sweet potato acts as prebiotic, selectively feeding beneficial Faecalibacterium prausnitzii and Roseburia species
Reduced age-related cognitive decline
moderate evidenceCarotenoids and choline (13.1mg/100g) support neuronal membrane integrity and reduce neuroinflammation linked to Alzheimer's pathology
Support for bone health and mineral absorption
moderate evidenceManganese content activates osteoblasts (bone-forming cells) and supports collagen synthesis; moderate potassium aids mineral retention
Pairs well with
- ·Pair with olive oil or avocado because fat-soluble carotenoids (beta-carotene, lutein) require dietary lipids for optimal intestinal absorption and bioavailability
- ·Combine with leafy greens (spinach, kale) because the vitamin K in greens complements sweet potato's potassium and fiber for enhanced cardiovascular and bone support
- ·Eat with black beans or lentils because plant-based proteins increase amino acid completeness while legume polyphenols synergize with sweet potato carotenoids for anti-inflammatory effects
- ·Pair with fermented foods (sauerkraut, kimchi) because cooled sweet potato's resistant starch feeds probiotic populations from fermented foods, amplifying microbiota benefits
Practical tips
- ·Best timing: anytime
- ·Cool cooked sweet potato to room temperature or refrigerate for 12+ hours to maximize resistant starch formation, which provides prebiotic effects and lowers glycemic impact
- ·Choose orange-fleshed varieties for highest beta-carotene content (up to 1000+ μg/100g), or purple varieties for additional anthocyanins; store in a cool, dark place (not refrigerated) for 2-3 weeks
- ·Boil instead of bake to better preserve heat-sensitive vitamin C and reduce acrylamide formation; aim for 15-20 minute boil to retain firmness
- ·Include skin in preparations when possible (after thorough washing), as the peel concentrates fiber and contains additional polyphenols
- ·Consume with adequate fat (1-2 tsp olive oil or 1/4 avocado) at same meal to maximize carotenoid absorption by up to 6-fold
