Toxic Foods:
* Avocado: The leaves, skin, and pit contain persin, which can cause severe heart problems.
* Black Walnut: Contains juglone, a toxin that can cause laminitis, colic, and liver damage.
* Bracken Fern: Contains thiaminase, which can cause neurological problems and death.
* Cherry, Plum, and Peach Pits: Contain cyanide, which is highly poisonous.
* Elderberry: The berries, leaves, and bark are toxic.
* Horse Chestnut: Contains esculin, which can cause muscle tremors, weakness, and death.
* Lantana: All parts of the plant are toxic.
* Nightshade: Includes tomatoes, potatoes, and peppers. The green parts and unripe berries are toxic.
* Oak: Leaves, acorns, and bark contain tannins, which can cause colic and laminitis.
* Rhubarb: The leaves are highly toxic.
* Red Maple: The leaves, twigs, and seeds are poisonous.
* Sweet Potato: The vine and leaves are toxic.
* Yellow Jessamine: All parts of the plant are toxic.
Foods that can cause digestive problems:
* Apples: The core and seeds contain cyanide and can cause colic.
* Grains: Can cause digestive upset and laminitis if fed in large quantities.
* Hay: Must be free of mold and mildew, which can cause respiratory problems and colic.
* Legumes: Can cause digestive upset and laminitis if fed in large quantities.
* Potatoes: Can cause digestive upset and laminitis.
* Sugar: Can cause colic, laminitis, and tooth decay.
* Vegetables: Some vegetables, such as onions and garlic, can be toxic to horses.
Other Considerations:
* Moldy Hay: Moldy hay can cause respiratory problems, colic, and other health issues.
* Water: Horses need access to fresh, clean water at all times.
* Salt: Horses need salt in their diet, but too much can cause dehydration.
Important Notes:
* Individual Horses may have different sensitivities: What might be safe for one horse could be dangerous for another.
* Always consult with a veterinarian: If you are unsure about the safety of a food for your horse, always ask your veterinarian.
It's best to err on the side of caution and avoid feeding your horse any foods that are not specifically designed for them. If you suspect your horse has ingested something poisonous, contact your veterinarian immediately.