Sweet potato地瓜
Signature ingredient: Vitamin A — A-grade evidence (Vitamin A Deficiency, ~107% of the studied dose per serving)
Standard nutrients per USDA FoodData Central · phytochemicals (lutein / K2 / sulforaphane etc.) are literature estimates, varying by variety and processing
S / A … ingredient evidence tier (tap for the claim) | bar = how much of the studied dose one serving of Sweet potato gives you
Meaningful intake one serving delivers a real fraction of the studied dose
Vitamin A
961ug · 107% DV · Converted from beta-carotene, no risk of excess
A Vitamin A Deficiency →
＋ Measles Mortality Children A・Vision B
≈ 107% of studied dose
Trace contribution far below the studied dose — not a therapeutic source
Potassium
475mg · 10% DV
B Hypertension →
＋ Cardiovascular Disease B・Muscle Cramp D
≈ 14% of studied dose
Manganese
0.5mg · 22% DV
C Micronutrient Deficiency →
＋ Osteoporosis C・Bone Fracture U
≈ 22% of studied dose
Why this page doesn't claim "Sweet potato works"
Whole foods almost never have RCTs — the evidence sits on the ingredients. So this page does one honest thing: it lists which graded ingredients Sweet potato contains, how much, and how far that is from the studied dose. It makes no efficacy claim about Sweet potato itself.
Bottom line: The sweet potato's signature is beta-carotene (converted to vitamin A in the body, with one serving being plenty); and unlike animal liver, a plant source won't cause vitamin A excess. Potassium and vitamin C are everyday amounts.
Every tier links to its full evidence page · Methodology →