healingSkin & Coat
Skin & Coat Health Guide
Skin problems and poor coat quality are often linked to allergens in food or nutritional imbalances. Identify the causative ingredients and ensure your dog gets the nutrients their coat truly needs.
Detailed Guides
Select the guide that matches your dog's symptoms.
Skin & Coat
Dietary Allergies
Identify common allergens like beef, dairy, and wheat, and learn how single-protein and hydrolyzed diets can reduce allergic reactions.
Skin & Coat
Hair Loss & Coat Quality
Learn about essential nutrients for coat health — omega-3 and 6 fatty acids, zinc, and biotin — and key criteria for choosing the right food.
10–15%
of skin diseases caused by diet
Beef #1
most common allergen (36%)
8–12 wks
minimum elimination diet period
3 Main Dietary Causes of Skin Problems
The skin is the body's largest organ, requiring a continuous supply of nutrients to synthesize new cells and hair keratin every day.
Dietary Allergens (Food Hypersensitivity)
10–15%
of skin disease cases caused by diet
10–15%
of skin disease cases caused by diet
- check_circleThe most common allergens are beef (36%), dairy (33%), wheat (15%), eggs (14%), and chicken (12%). (Hillier & Griffin, 2001)
- check_circleSymptoms can take hours to days to appear, making it difficult to identify the causative ingredient. Both IgE-mediated immediate and non-IgE-mediated delayed reactions occur.
- check_circleThe gold standard for diagnosis is an 8–12 week elimination diet trial using a single-protein or hydrolyzed protein food. Treats and supplements must also be strictly controlled during this period.
- check_circleAllergies are rarely cured — avoiding the causative ingredient is the primary strategy. Always check food labels for allergens with every purchase.
Omega-3/Omega-6 Imbalance (Fatty Acid Deficiency)
5:1–10:1
recommended omega-6:omega-3 ratio (NRC 2006)
5:1–10:1
recommended omega-6:omega-3 ratio (NRC 2006)
- check_circleEPA+DHA (omega-3) and linoleic acid (omega-6) are essential components of the skin barrier (ceramides and wax esters). NRC (2006)
- check_circleOmega-3 deficiency leads to dry skin, abnormal hair loss, dull coat, and increased dandruff. Adequate omega-3 also has anti-inflammatory effects that suppress skin inflammation and reduce itching.
- check_circleSome commercial foods have an omega-6:omega-3 ratio exceeding 20:1. A fish oil supplement can help restore the balance.
- check_circleAllow at least 6–8 weeks of observation after changing food before evaluating changes in skin and coat quality.
Zinc, Biotin & Other Micronutrient Deficiencies
AAFCO
complete & balanced food prevents most deficiencies
AAFCO
complete & balanced food prevents most deficiencies
- check_circleZinc deficiency causes zinc-responsive dermatosis, especially in northern double-coated breeds (Husky, Malamute) and rapidly growing large breeds (Great Dane). Hand et al. (2010)
- check_circleBiotin (vitamin B7) deficiency causes coat deterioration, dandruff, and skin hyperkeratosis. Avidin in raw egg whites can inhibit biotin absorption.
- check_circleVitamin A and E deficiencies can cause keratinization disorders and immune suppression. Over-supplementation carries toxicity risks — stay within AAFCO (2023) guidelines.
- check_circleMost micronutrient deficiencies are preventable by feeding a complete and balanced food meeting AAFCO or FEDIAF standards. Home-cooked diets carry a higher risk of nutritional imbalance.
Find the Cause by Symptom
Refer to the guide that matches your dog's symptoms. Overlapping symptoms may indicate multiple causes.
| Symptom | Suspected Cause | Guide |
|---|---|---|
| Itching, licking or chewing the body | Dietary allergy (IgE/non-IgE hypersensitivity) | → Dietary Allergy Guide |
| Recurring ear infections, foot licking | Dietary allergy (often co-occurs with atopy) | → Dietary Allergy Guide |
| Excessive shedding regardless of season, dry/dull coat | Omega-3 deficiency or general nutritional imbalance | → Hair Loss & Coat Guide |
| Dandruff, scaling, skin hyperkeratosis | Combined zinc/biotin/fatty acid deficiency | → Hair Loss & Coat Guide |
피부·모질 개선 추천 사료
아래 제품은 참고용 예시입니다. 반드시 우리 아이 상태와 수의사 의견을 우선하세요.
광고 수수료 안내 — 이 포스팅은 쿠팡 파트너스 활동의 일환으로, 이에 따른 일정액의 수수료를 제공받습니다. 구매 가격에는 영향이 없으며, 제품 선정은 수수료와 무관하게 영양 기준에 따라 중립적으로 작성됩니다.
If skin problems are severe or persistent, dietary adjustments alone may not be sufficient. Always consult a veterinarian for an accurate diagnosis. The content on this page is general educational information and does not replace veterinary advice.
References
- Hillier, A. & Griffin, C.E. (2001). The ACVD task force on canine atopic dermatitis (I). Vet Immunol Immunopathol, 81(3–4), 147–155.
- Mueller, R.S. et al. (2016). Critically appraised topic on adverse food reactions of companion animals. BMC Vet Res, 12(1), 9.
- NRC. (2006). Nutrient Requirements of Dogs and Cats. National Academies Press.
- Hand, M.S. et al. (2010). Small Animal Clinical Nutrition, 5th ed. Mark Morris Institute.
- AAFCO. (2023). Dog Food Nutrient Profiles.