Nutrient Deficiency Self-Check

Map common symptoms to suspected nutrient gaps and the foods that close them

Pick the symptoms you are experiencing and we will rank the most likely nutrient deficiencies based on the symptoms you selected. For each suspected nutrient we list the top evidence-based food sources. Self-checks are educational — for diagnosis and treatment, consult a registered dietitian or physician.

Image Placeholder营养缺乏自评展示:食物碗、维生素瓶、阳光、鱼、坚果,鼠尾草绿 + 暖米色Size: 1920x1080

Step 1 — Select Your Symptoms

Tick every symptom you have experienced in the last 1–3 months. The results update instantly.

Persistent fatigueTired even after a full night's sleepHair thinning or lossMore shedding than usual, brittle strandsMuscle cramps or twitchingEspecially calves, feet, or eyelidsDifficulty seeing in dim lightTrouble adjusting when entering a dark roomRecurring mouth ulcersCanker sores that come and goBleeding or swollen gumsWhen brushing or flossingBone pain or frequent fracturesAching bones, slow healing breaksChronically dry or rough skinNot relieved by moisturizer alone

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Step 2 — Suspected Nutrient Gaps

Select at least one symptom above to see suspected nutrient gaps and recommended foods.

How this works

Each symptom maps to a small set of nutrients commonly associated with that clinical sign. We then rank nutrients by how many of your selected symptoms they explain and surface the top evidence-based food sources for each.

Common causes: poor dietary variety, restrictive diets, malabsorption (celiac, IBS, bariatric surgery), pregnancy, certain medications (PPIs, metformin), low sun exposure (vitamin D), and heavy menstrual bleeding (iron).

This self-check runs entirely in your browser. No symptom data is sent to any server.