Sugar Beet for Horses: Benefits, Preparation and Feeding Rates

Sugar beet is one of the most versatile and widely used feeds in the equine world, yet it's also one of the most misunderstood. Some horse owners swear by it as a conditioning feed, while others worry about the sugar content or fear the consequences of improper soaking. So what's the truth?

In this guide, we'll cover everything you need to know about feeding sugar beet to horses — the nutritional benefits, the different forms available, how to prepare it safely, and exactly how much to feed.

What Is Sugar Beet?

Sugar beet (Beta vulgaris) is a root vegetable grown primarily for sugar production. After the sugar is extracted during processing, the leftover fibrous pulp is dried and sold as animal feed. This means the sugar beet you buy for your horse has already had the majority of its sugar removed — it's essentially a by-product.

Sugar beet pulp for horses is available in three main forms:

• Shreds — dried, shredded pulp that requires soaking before feeding
• Pellets (cubes/nuts) — compressed dried pulp, also requiring soaking
• Quick-soak or micronised — pre-processed to absorb water much faster

Some products also come with added molasses for palatability, while unmolassed versions are available for horses that need a lower sugar diet.

Nutritional Profile of Sugar Beet

Sugar beet pulp is a highly digestible fibre source with a unique nutritional profile that sits somewhere between forage and concentrates. Here's a general breakdown of unmolassed sugar beet pulp (dry matter basis):

A few things stand out from this profile:

• High digestible fibre: Sugar beet is rich in pectins and other soluble fibres that are rapidly fermented by the hindgut microbiome. This makes it an excellent, "cool" energy source — providing calories without the fizzy behaviour associated with cereal grains.
• Good energy density: Pound for pound, sugar beet provides similar energy to a basic mix or cube, making it a useful conditioning feed.
• Low protein: It's not a significant source of protein, so it shouldn't be relied upon to meet protein requirements.
• High calcium, very low phosphorus: This skewed calcium-to-phosphorus ratio is worth noting, especially if you're feeding large amounts. It's generally beneficial for balancing cereal-heavy diets (which tend to be high in phosphorus), but it needs consideration in the overall diet.

Benefits of Feeding Sugar Beet to Horses

1. Excellent Source of Digestible Fibre

The soluble fibre (pectin) in sugar beet is fermented efficiently in the hindgut, producing volatile fatty acids that provide slow-release energy. Unlike starch from cereals, this fibre-based energy doesn't cause blood sugar spikes, making sugar beet a safer option for horses prone to excitability, laminitis, or metabolic issues — provided you choose the unmolassed form.

2. Weight Gain and Conditioning

Sugar beet is a popular choice for putting weight on thin horses or maintaining condition in hard-working horses. Because it's calorie-dense yet gentle on the gut, it's ideal for horses that need extra energy without the risks associated with large cereal meals.

3. Hydration Support

Once soaked, sugar beet holds a remarkable amount of water — up to three to four times its dry weight. Feeding soaked sugar beet is an effective way to increase your horse's water intake, which is particularly valuable during winter when horses tend to drink less, or for horses prone to impaction colic.

4. Highly Palatable

Most horses find sugar beet extremely tasty. This makes it a useful carrier for supplements, medications, or other less palatable feeds. A small amount of soaked sugar beet can transform a refused feed into a clean-licked bucket.

5. Gut-Friendly

The soluble fibre in sugar beet supports a healthy hindgut microbiome. It encourages the growth of beneficial bacteria and produces butyrate, a volatile fatty acid that nourishes the cells of the gut wall. For horses recovering from digestive upsets or transitioning between diets, sugar beet can be a gentle and supportive addition.

6. Versatile for Many Horse Types

From veterans with poor dentition who struggle to chew hay, to performance horses needing extra fuel, sugar beet can be tailored to suit a wide range of needs. Its soft, mushy texture when soaked makes it particularly valuable for older horses.

Molassed vs Unmolassed Sugar Beet

This is a critical distinction. Molassed sugar beet has molasses added back after processing, which increases the sugar content significantly — typically to around 15–25% on a dry matter basis. Unmolassed sugar beet contains only around 5–8% sugar.

For most horses, especially those that are good doers, overweight, laminitic, insulin resistant, or diagnosed with Equine Metabolic Syndrome (EMS) or PPID (Cushing's), unmolassed sugar beet is the appropriate choice.

Molassed sugar beet may be suitable for horses in heavy work, underweight horses, or those with no metabolic concerns — but even then, unmolassed versions are generally preferred as a safer default.

How to Prepare Sugar Beet Safely

This is arguably the most important section of this article. Sugar beet must always be soaked before feeding. Dry sugar beet expands dramatically when it absorbs moisture. If eaten dry, it can swell in the stomach and oesophagus, potentially causing choke or, in severe cases, stomach rupture.

Soaking Guidelines by Type

Step-by-Step Preparation

1. Measure out the dry sugar beet — remember, it will expand significantly, so use less than you think.
2. Place in a large bucket — the beet will swell to three to five times its original volume.
3. Add cold water — always use cold water. Hot water can cause the beet to ferment more rapidly and may create a bacterial risk in warm weather.
4. Leave to soak for the recommended time until fully expanded and soft.
5. Check consistency — properly soaked beet should be soft and spongy with no hard, dry centres. If any dry pieces remain, soak for longer.
6. Drain excess water or feed as is — some owners like to include the residual water for extra hydration.

Important Safety Notes

• Never feed dry sugar beet — this cannot be overstated.
• Don't leave soaked beet for more than 24 hours in warm weather — it can start to ferment and develop harmful bacteria. In winter, it will keep longer, but use common sense.
• In summer, consider making fresh batches more frequently or soaking in a cool area.
• Quick-soak products are a safer option if you're worried about forgetting to soak in advance, though they still require soaking per the manufacturer's instructions.

How Much Sugar Beet to Feed Your Horse

Feeding rates depend on what you're trying to achieve, your horse's size, workload, and the rest of the diet. Here are general guidelines based on dry weight (before soaking):

General Feeding Rates (Dry Weight)

Remember: These are dry weights. Once soaked, 500g of dry sugar beet becomes roughly 1.5–2kg of wet feed.

Key Considerations

• Start small and build up gradually — as with any dietary change, introduce sugar beet slowly over 7–14 days to allow the hindgut bacteria to adjust.
• Account for sugar beet in the overall diet — it's adding calories, fibre, and calcium. If you're feeding significant amounts, you need to consider how it affects the balance of the total ration.
• Don't rely on sugar beet alone — it's low in protein, vitamins, and most minerals (apart from calcium). It should complement a balanced diet, not replace it.
• For laminitics and metabolically challenged horses — stick to small amounts of unmolassed beet (100–300g dry weight) and ensure total dietary sugar and starch remains below 10% of dry matter intake.

If you're unsure whether sugar beet fits into your horse's current ration, or how much to feed alongside hay, hard feed, and supplements, consider analysing your horse's diet to get a clear picture of what they're actually receiving versus what they need.

Sugar Beet for Specific Horse Types

Good Doers and Natives

Small amounts of unmolassed sugar beet (100–200g dry weight) can work well as a supplement carrier without adding excessive calories. Avoid molassed varieties entirely for these types.

Veterans and Horses with Poor Teeth

Sugar beet is particularly valuable for older horses who can no longer chew long-stem forage effectively. Soaked beet can partially replace hay, providing digestible fibre in a form that requires minimal chewing. Amounts of 500g–1kg (dry weight) or more may be appropriate, ideally split across multiple feeds.

Underweight or Poor Condition Horses

Sugar beet is an excellent, gut-friendly way to add calories. Combined with quality forage and a balanced hard feed, 500g–1.5kg (dry weight) per day can make a noticeable difference to condition over a few weeks.

Performance Horses

For horses in moderate to hard work, sugar beet provides useful non-heating energy alongside concentrates. It also supports hydration — a significant benefit for horses that sweat heavily.

Laminitis-Prone or Metabolically Challenged Horses

Unmolassed sugar beet in small amounts (100–300g dry weight) is generally considered safe. However, every horse is different. Work with your vet or nutritionist, and always monitor body condition and hoof health closely.

Common Myths About Sugar Beet

"Sugar beet is full of sugar"

Unmolassed sugar beet pulp typically contains only 5–8% sugar — less than many hays. The name is misleading because the sugar has already been extracted during processing. Molassed beet is higher in sugar, but unmolassed versions are genuinely low-sugar feeds.

"Sugar beet will make my horse fizzy"

Because sugar beet provides energy through fibre fermentation rather than starch digestion, it's actually one of the least "heating" energy sources available. Horses fed sugar beet instead of cereals often become calmer, not more excitable.

"You can soak sugar beet in hot water to speed things up"

While warm water does speed absorption, it also accelerates fermentation and bacterial growth. The safest practice is to always use cold water and allow adequate soaking time. If you're short on time, buy a quick-soak product.

"Dry sugar beet will explode in a horse's stomach"

While "explode" is an exaggeration, dry sugar beet genuinely can cause choke and, very rarely, gastric rupture. The risk is real and well-documented. Always soak before feeding — no exceptions.

Final Thoughts

Sugar beet is a fantastic feed ingredient when used correctly. It's a safe, digestible, and versatile fibre source that benefits everything from gut health to hydration. The key is choosing the right type (unmolassed for most horses), soaking it properly, and feeding appropriate amounts as part of a balanced overall diet.

Like any feed, sugar beet works best when it's part of a carefully considered ration rather than an afterthought tossed in the bucket. Take the time to understand what your horse needs, and sugar beet can be one of the most valuable tools in your feeding arsenal.