Thunderbrook Ahiflower Oil is an oil supplement made from the seeds of the Ahiflower plant. It provides omega-3, omega-6 and omega-9 fatty acids in a plant-derived format for owners considering an addition to their horse's existing diet.Thunderbrook's training positions it as nutritional support for skin and coat condition, normal immune function, mobility and recovery. The practical starting point is to decide what the supplement is intended to add to the ration, then use the recommended amount consistently.What is Ahiflower Oil made from?Thunderbrook lists the composition as 99.9% refined Buglossoides arvensis seed oil, with 0.1% natural antioxidants. It is a vegan alternative for owners who prefer a plant-derived omega supplement. The supplier describes the crop as grown in the UK.The product is supplied in a one-litre bottle with a measuring aid. That is useful because feeding guidance is given in millilitres, rather than an approximate splash over the meal.What can an omega supplement contribute?Different oils have different fatty-acid profiles. Ahiflower's role in this range is to add omega fatty acids to the diet, with the manufacturer highlighting normal skin, coat and mobility support. It is not a high-starch energy feed.The amount of fat in a product alone does not explain its full nutritional role. When comparing oils, consider the source, the stated fatty acids, the recommended daily amount and how the rest of the ration is balanced.For an older horse with a change in movement, a persistent skin problem or respiratory symptoms, get veterinary advice about the cause. An oil supplement should not be presented as a treatment for arthritis, allergies or other disease, and a shinier coat would not establish that an underlying condition had improved.Is it the same as fish oil?Ahiflower is a plant-derived option for owners who do not want to feed fish oil. That is a useful distinction, but it does not establish that every plant oil and fish oil product has an identical fatty-acid profile or produces identical results.If a vet or nutritionist has recommended a particular fatty acid or daily amount, compare that recommendation with the product specification. Avoid choosing solely on a general omega oil claim.How much Thunderbrook Ahiflower Oil should you feed?The manufacturer's recommendation is 5ml per 100kg of bodyweight each day. These examples apply to this Thunderbrook product:BodyweightDaily amountApproximate duration of a 1L bottle300kg15ml67 days400kg20ml50 days500kg25ml40 days600kg30ml33 daysDurations are calculated from 1,000ml divided by the stated daily amount, rounded to the nearest day. Allow for measuring losses and check the current label before feeding.Measure carefully, introduce the oil gradually and follow the bottle's storage instructions. If your horse already receives oils or several supplements, review the combined ration before adding another.Will it help an underweight horse?Oil contributes energy, but the small recommended serving of an omega supplement should not be mistaken for a complete conditioning programme. First establish whether the horse is eating enough suitable forage and whether a health or dental problem is limiting intake.Where the ration needs a conditioning feed, Thunderbrook Gentle Gain has a different role: it supplies a combination of forage fibre, protein and energy. Neither product replaces a properly planned diet.Does it replace a vitamin and mineral supplement?No. A seed oil does not provide the same nutritional package as a balancer. Check that forage, bucket feed and any balancer together meet the horse's needs, and add an omega supplement only where it has a clear role.A practical way to assess whether it is usefulAgree what you are trying to support, record the feeding amount and avoid changing several products at once. Keep an eye on appetite, body condition and acceptance. For a specific health concern, your vet's assessment is more useful than relying on a marketing promise or a change in appearance alone.View Thunderbrook Ahiflower Oil 1L for the product details and current availability, or browse our horse supplements.