17/06/2026
A dull coat, excessive shedding, or thinning fur is one of those things that gets addressed externally first - a new shampoo, a different conditioner, more brushing. But the coat is a reflection of what’s happening internally. Topical changes rarely move the needle because the issue rarely starts at the skin.
‼️ The causes highlighted in this post - omega-3 deficiency, zinc deficiency, hormonal issues, and chronic stress - are very common drivers. But they’re not the only ones. Parasites, poor-quality proteins, other nutritional deficiencies, and underlying systemic conditions can all show up in the coat first, sometimes before any other symptom is obvious.
The coat is often the earliest visible signal that something internal needs attention.
What’s worth understanding about the nutritional factors specifically is that they’re not always straightforward to identify. A dog can be eating what looks like an adequate diet and still be deficient - because the quality of the ingredients, the degree of processing, and the gut’s ability to absorb nutrients - all determine how much actually reaches the tissues.
A food that meets minimum nutritional standards on paper can still leave a dog deficient in the nutrients that matter most for coat health.
This is why a diet audit is often the most useful starting point. Not because diet is always the cause, but because it’s the most actionable layer to look at first, and nutritional gaps are a leading driver of skin and coat issues in dogs.
📌 If your dog has a dull coat or is shedding excessively, and you want to know whether the diet might be playing a role, DM or comment “DIET AUDIT” for a free review of what your dog is eating. I’ll tell you where the gaps are and how to address them 🤍
🐾 Save this and share it with someone whose dog needs it.
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