Are Sweet Potatoes Good for Eczema?

Partly: sweet potatoes can support a balanced diet for people with eczema if they are tolerated, because they provide nutrients needed for normal skin function, but they are not a proven eczema treatment.

Are sweet potatoes a good choice for eczema?

Sweet potatoes are a reasonable food to include in meals if you enjoy them and they do not cause a reaction. Orange-fleshed sweet potatoes contain beta carotene, which the body can convert into vitamin A, a nutrient involved in maintaining normal skin.

That nutritional role does not mean sweet potatoes will improve an eczema rash or prevent a flare. For a broader look at dietary choices, see the best foods for eczema.

How might sweet potatoes affect eczema?

Vitamin A supports normal skin and immune function. Sweet potatoes also provide fiber and other nutrients that can contribute to a varied diet. The amount of beta carotene varies with the sweet potato’s flesh color; orange-fleshed varieties are a source.

Eczema involves a disrupted skin barrier and inflammation, among other factors. Eating a food that supplies nutrients for normal skin does not necessarily correct those problems or produce a noticeable change in symptoms. There is no established mechanism showing that eating sweet potatoes specifically treats eczema.

Eczema can also fluctuate for reasons unrelated to food, including dry skin and contact with irritants. A flare after a meal does not, by itself, prove that an ingredient caused it.

What does the evidence say?

We found no clinical studies of sweet potatoes for eczema. As a result, whether eating sweet potatoes reduces itching, rash severity or flare-ups is unknown.

General knowledge about vitamin A and skin function is not a substitute for a clinical trial of sweet potatoes in people with eczema. It also does not establish how much someone would need to eat, whether one preparation is better than another or whether sweet potatoes prevent eczema.

Likewise, a personal improvement after adding sweet potatoes to a diet cannot establish that they caused the change. Eczema symptoms can improve or worsen over time, and other changes, such as skin care or medication use, may occur at the same time.

How can you include sweet potatoes safely?

If you already tolerate sweet potatoes, include them as part of varied meals rather than treating them as a remedy. Baked, boiled or roasted sweet potatoes can fit alongside other foods that you tolerate. There is no proven eczema-specific preparation or serving amount.

Choose seasonings and accompaniments that suit you. If you suspect a meal is associated with symptoms, consider all its ingredients and other possible irritants rather than assuming sweet potatoes are responsible.

You can keep a brief record of meals, symptoms, skin care and other possible triggers to discuss with a clinician. A record may help guide a conversation, but it cannot diagnose a food allergy. Avoid cutting out several foods without professional advice, particularly for a child, because unnecessary restrictions can make adequate nutrition harder.

Continue your usual eczema care, including any prescribed treatment and moisturizer, as directed by your clinician. Do not apply sweet potatoes directly to broken or inflamed skin as an eczema treatment; their topical use has not been established as safe or effective.

Hydration supports normal body function, although no drink is proven to treat eczema; see the best drinks for eczema for more context.

Who should be careful, and when should you see a doctor?

A person can have a food allergy as well as eczema. If sweet potatoes appear to cause immediate symptoms such as hives, swelling or vomiting, avoid them until you have spoken with a clinician. Do not deliberately eat them again at home to test the reaction.

Get emergency help immediately for trouble breathing, faintness or a rapidly worsening reaction after eating. If an epinephrine auto-injector has been prescribed, use it as directed and call emergency services.

For babies or children with severe eczema or a known food allergy, ask a pediatrician for guidance about introducing foods. Do not remove foods a child already tolerates solely to try to control eczema without discussing it with a clinician.

See a clinician promptly if eczema becomes painful, spreads rapidly, develops oozing or crusting, or occurs with fever; these changes can indicate an infection that needs assessment. Seek medical advice as well if symptoms are persistent, disrupt sleep or are not improving with the care recommended to you.

Do not take high-dose vitamin A supplements to treat eczema without medical advice. Excess preformed vitamin A can be harmful, especially during pregnancy; that concern is different from the beta carotene naturally found in sweet potatoes.