19/02/2025
Hair, Blood, or Microbiome? Understanding the Best Testing for Your Horse’s Nutrition.
When it comes to supporting your horse’s health, testing can provide valuable insights—but not all tests tell the same story. Hair mineral analysis, blood work, and microbiome testing each offer different perspectives on your horse’s nutritional status. Let’s take a deeper look at their benefits, limitations, and why the gut may hold the key to true wellness.
🧬𝗛𝗮𝗶𝗿 𝗠𝗶𝗻𝗲𝗿𝗮𝗹 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀:
Hair testing is often used to evaluate mineral levels, heavy metal exposure, and metabolic trends over time. Because minerals are stored in hair as it grows, this test reflects nutritional intake from previous weeks or months rather than a glimpse into what the current nutrition is.
𝘉𝘦𝘯𝘦𝘧𝘪𝘵𝘴:
- Non-invasive and easy to collect.
- Detects long-term mineral imbalances that may not show up in blood work.
- Can reveal heavy metal toxicity and chronic exposure to environmental contaminants.
𝘓𝘪𝘮𝘪𝘵𝘢𝘵𝘪𝘰𝘯𝘴:
- Doesn’t show immediate nutrient availability or deficiencies.
- External contamination (environment, shampoos, soil, water) can affect results.
Best for: Identifying trends in mineral balance over time, especially when paired with other health assessments.
🩸 𝗕𝗹𝗼𝗼𝗱 𝗪𝗼𝗿𝗸:
Blood work is one of the most common tools for assessing a horse’s health, often used to check for vitamin and mineral levels, insulin, organ function, hydration status, and inflammatory markers. However, because the body tightly regulates certain nutrients in the bloodstream, deficiencies don’t always appear in test results.
𝘉𝘦𝘯𝘦𝘧𝘪𝘵𝘴:
- Provides real-time health snapshot on circulating nutrients.
- Can detect imbalances that require immediate attention.
- Useful for diagnosing anemia, infection, liver/kidney function, insulin and ACTH trends, and inflammatory conditions.
𝘓𝘪𝘮𝘪𝘵𝘢𝘵𝘪𝘰𝘯𝘴:
- Only a snapshot in time—levels fluctuate based on diet, hydration, and stress- doesn't offer the full picture.
- Some minerals (like calcium and magnesium) are maintained in the blood at the expense of tissues, so a normal reading doesn’t always mean a horse has enough.
- Does not assess how well nutrients are actually being absorbed or utilized.
Best for: Checking immediate health status, ruling out serious conditions, and monitoring organ function.
💩 𝗠𝗶𝗰𝗿𝗼𝗯𝗶𝗼𝗺𝗲 𝗧𝗲𝘀𝘁𝗶𝗻𝗴:
The microbiome—the trillions of bacteria, fungi, and other microbes in the gut—plays a central role in digestion, immunity, inflammation, and overall health. Microbiome testing analyzes the microbial balance in a horse’s gut, offering clues about digestion, immune function, and even mood and behavior.
𝘉𝘦𝘯𝘦𝘧𝘪𝘵𝘴:
- Identifies microbial imbalances that could impact digestion, nutrient absorption, and immune response.
- Can reveal underlying causes of chronic issues like colic, laminitis, metabolic dysfunction, and poor coat/hoof quality.
- Helps fine-tune diet and supplementation based on how the gut is actually processing food.
𝘓𝘪𝘮𝘪𝘵𝘢𝘵𝘪𝘰𝘯𝘴:
- Still an emerging field
- While it identifies imbalances, fixing them requires dietary and lifestyle changes rather than a quick supplement fix.
Best for: Understanding how well a horse is truly digesting and absorbing nutrients, identifying hidden causes of poor health, and creating a targeted nutrition plan.
...........
The microbiome influences everything from nutrient absorption to immune function, inflammation, and even hormonal balance. A horse may have a "balanced" diet on paper, but if their microbiome is out of sync, they may not actually be utilizing nutrients properly.
When a horse struggles with chronic issues like ulcers, weight fluctuations, laminitis, or metabolic imbalances looking at the gut is often the missing piece. Microbiome testing can help uncover the root cause, allowing for more precise dietary adjustments that promote real healing rather than just symptom management.
The best approach? Use testing as a tool, not the sole answer. Observing your horse’s body condition, energy levels, hoof and coat quality, and digestion will always be the most valuable guide. Pairing microbiome insights with whole-food nutrition, functional movement, and mindful management creates the strongest foundation for lasting health.💕🐎