Is This Year's Hay Sweeter Than Last Year's? What the Shortage Means for Metabolic Horses
Most of us learned to buy hay with our hands and our eyes. You pull a flake apart, check the leaf against the stem, look at the color, get your nose into it, and turn down the dusty load. That skill is real and it is earned.
It cannot tell you how much sugar is in the bale.
That matters more than usual this year, because finding low NSC hay for metabolic horses has become a genuinely different job than it was last season. If you are managing a horse with insulin dysregulation, EMS, PPID, or a laminitis history, the story of the 2026 hay year is not only that hay got scarce and expensive. It is that the usual clues about what is inside it got less reliable. By the end of this you will know the one number worth asking your supplier for, and what to do about a load when the number comes back higher than you wanted.
One longtime customer described how she used to shop for feed before she started reading labels seriously. She looked at the protein, fat and fiber numbers on the front of the bag, and that was it, because she did not know there was anything else to look for. Hay is the same trap with a harder version of the problem. There is no label at all.
What Actually Happened to the 2026 Hay Crop
If your own supplier came through this year, the scale of this is easy to miss. By early May, roughly 57 percent of U.S. hay-producing acreage was under drought, with alfalfa acreage at 47 percent. In parts of North Carolina, where growers were running 15 to 20 inches behind on rain for the year, first cutting came in at 25 to 50 percent of normal. Across much of the West, prices climbed around $20 a ton on tight carryover, multi-decade-low alfalfa acreage, frost damage in northern California, and water restrictions. By late July, USDA's Colorado report was describing horse hay prices per bale still rising as drought deepened and abnormally high temperatures cut into both yield and quality.
What that looks like from your side of the fence: fewer loads, later loads, timothy and orchard grass harder to source than usual, more people taking mixed grass or whatever the second call can deliver. Plenty of owners who bought the same hay from the same grower for years have spent this season piecing a winter together out of two or three fields. That last part is the one that matters here.
Why Does Drought Raise the Sugar Content of Hay?
Grass stores sugars as nonstructural carbohydrates, creating an energy reserve it can draw on when growing conditions become stressful. It is insurance against the day things go wrong.
Nonstructural carbohydrates, or NSC, are the sugars, starches and fructans a plant produces through photosynthesis and holds in reserve rather than building into stem and leaf. The plant spends that reserve regrowing after it gets grazed or mowed, and getting through conditions that make growing difficult.
The mechanism in a dry year comes down to a mismatch. Growth is more sensitive to water stress than photosynthesis is. When soil moisture runs short, the plant slows or stops putting on new tissue, but the leaves it already has keep making sugar. Production continues after spending stops, and the surplus accumulates in the stem base.
The numbers are not subtle. Cool-season grasses typically run 12 to 16 percent NSC through the summer, and under dry conditions that can push past 20 percent. For most horses this is a non-event. For a horse whose diet you have built carefully around staying under a threshold, the difference between 12 percent hay and 20 percent hay is most of your margin.
Does Drought Always Mean Higher Sugar?
Here is where a lot of coverage overreaches, and you deserve the complicated version. Moderate heat and drought stress tend to raise NSC. But when drought becomes prolonged and severe, photosynthesis itself slows, and concentrations can fall instead. Research on orchard grass under Mediterranean drought tracked fructan climbing steadily in the stem bases across a three-month dry period, while extension guidance from Oregon State and Rutgers notes that extended stress can run the other way. Species, variety, time of cut, time of day at cutting, nitrogen status, and cloud cover in the days before harvest all pull on the same number.
So the honest headline is not that this year's hay is sweeter. It is that this year, the relationship between how a hay looks and what is inside it got noticeably less trustworthy.
Stemmy, unimpressive, drought-stressed hay can test high. Hay that looks like exactly what you wanted can test high. And a genuinely low-sugar load can arrive looking as unpromising as the one that is not. Your eye and your hands are still worth something. They are just not the right instrument for this particular measurement, in this particular year.
What Number Should You Ask For When Testing Hay?
If you have already gotten as far as testing your hay, thank you for doing the work most people skip. There is one more step that decides whether the test tells you what you actually need.
NSC as reported on a forage analysis usually bundles water-soluble carbohydrates together with starch. Water-soluble carbohydrates include fructan, which horses cannot digest in the small intestine. Fructan passes to the hindgut and gets fermented there, which carries its own set of considerations, but it does not drive the glucose and insulin response after a meal the way simple sugars and starch do.
The number that maps most directly to insulin response is ESC plus starch. ESC stands for ethanol-soluble carbohydrates, and it captures the simple sugars without the fructan fraction. It is the same distinction we make on our own Extra Low Sugar treats, where NSC, ESC, WSC and starch are all listed separately rather than collapsed into one figure, because for a metabolic horse they are not interchangeable.
Forage under roughly 10 percent ESC plus starch is a commonly used target for horses with insulin dysregulation or EMS, and some horses need to sit lower. Individual requirements vary a great deal, and if your horse has foundered before, those targets belong in a conversation with your veterinarian rather than in an article. Worth having that conversation before the next load arrives rather than after.
Getting the number means requesting a wet chemistry analysis with sugar and starch included, not NIR alone. Equi-Analytical's equine packages are the familiar route, and many state extension offices run reduced-cost forage testing and will loan you a sampling probe. Core ten or so bales from the lot with the probe rather than grabbing flakes by hand, or the sample will not represent what your horse is actually eating. Test each load rather than each year, because a different field and a different cutting is a different number.
There is a second reason to test in a year like this one. Drought-stressed forage carries a higher risk of nitrate accumulation, and horses should not be eating forage above 4,600 ppm nitrate. Extension guidance this season has been to test purchased hay for nitrate as well as sugar, particularly hay grown on ground with heavy fertility history. It is the same sample and usually a small add-on to the same test.
Waiting on results, or not ready to test yet? You can get a rough picture today from what you already know. Run your horse's current ration through our Diet & NSC Calculator and see where the total sits.
What If Your Horse Has Not Been Diagnosed Yet?
Not everyone reading this has a confirmed metabolic horse. Plenty of you have an easy keeper who has never been tested, and a quiet running suspicion.
One customer wrote in about her mare and mentioned almost in passing that she suspected the mare might be IR, because she had not shed out as slick as she would have liked that spring, but that she had not had her tested. That is an extremely common place to be standing. You have noticed something. You are not certain it is anything. You have not wanted to spend the money on bloodwork to find out.
A dry year is a reasonable moment to stop wondering, because the hay conditions that raise sugar do not wait for a diagnosis. Testing the horse and testing the hay answer two halves of the same question, and knowing both beats managing around a suspicion.
When You Cannot Choose the Hay, Work the Rest of the Tub
Testing tells you where you stand. It does not put a better load in your driveway, and this year, a lot of people are feeding hay they would not have picked.
Soaking is the standard lever when a load comes back higher than you want. Thirty to sixty minutes in cool water removes a meaningful share of the water-soluble carbohydrates, though how much varies by hay, and it pulls minerals out along with the sugar. If you are soaking every meal, that makes a quality micro- and macro-mineral supplement especially important. It is also genuinely unpleasant work in February, which is worth saying rather than pretending otherwise.
The lever most owners underuse is everything else in the bucket. Hay is the biggest single input, so it takes the attention. The horse's metabolism responds to the total ration, and the rest of that ration is far more within your control than your hay supply is right now. A concentrate fed at two pounds, a ration balancer, the carrier you use for daily meds, the handful of treats that goes out with the halter: each carries its own sugar and starch, and the amount fed counts as much as the percentage on the tag. Treats are the input people forget entirely, which is part of why we make an Extra Low Sugar version of our Super Food Horse Treats.
That kind of accounting is what one customer did when she finally went through her feed room and found stacks of bags and buckets bought for hooves, weight, joints and gut. She threw them out and rebuilt the program around a hay pellet with flax, loose mineral salt, and one supplement. Fewer inputs, each chosen on purpose. In a year when the hay is already working against you, that is not a minimalist aesthetic. It is how you get your margin back.
What Else Is Drought Hay Missing?
There is a second half to a bad forage year that gets far less attention than sugar does. A short, stressed, late-cut crop is generally not just higher in carbohydrate. It is thinner in the things you were counting on the forage to supply, which is the same gap we wrote about in Beyond the Bale, only wider this year. Harvesting and storing forage already changes the nutritional profile substantially compared with fresh pasture, and omega-3 fatty acids are among the first things lost. A drought crop gives you less margin on top of a starting point that was already reduced.
So the horse eating more sugar than you would like is often the same horse eating a thinner nutritional base, in a season when turnout on decent grass is limited too.
This is where supplementation stops being about adding something and starts being about restoring something. Modern horsekeeping changed the equine diet by taking things out of it, and a drought year takes out a little more. Once the goal is putting back what the forage is no longer providing, the questions get specific: what the omega-3 source actually is, what ratio it delivers, and whether it brings sugar of its own into a diet with none to spare.
Those are the questions Inner Glow Omega Booster was built around. Five whole ingredients, chia, fennel, dandelion, nettle and rosehips, with the chia carrying the omega-3s at a 3:1 ratio to omega-6, all nine essential amino acids, and bioavailable magnesium. Equi-Analytical testing puts Inner Glow at 6.1% NSC, with ESC plus starch at just 2.0%. No grain, soy, corn, molasses or added sugars, because those are the bulking agents that make a scoop cheap rather than the reason it works. Human food grade, milled in small batches in California. Half a cup a day, under three ounces, which is worth knowing when you are counting every input that lands in the tub.
See What the Whole Diet Adds Up To
The arithmetic is the tedious part. Percentages and serving sizes for five or six different inputs, and then what that total actually means for a metabolic horse rather than a horse in general. Our Diet & NSC Calculator does that part. Put in what your horse is eating, in the amounts you are actually feeding, and see where the complete diet lands.
Some owners find a sugar source they were not expecting. Others find the diet they built carefully is right where they wanted it, which is its own kind of useful in a year like this one.
Then take that number into your next hay conversation and your next vet appointment, and ask better questions than a load of hay is ever going to answer on its own.
If sugar in the wider diet is the thing keeping you up, The Real Issue with Sugar and Molasses for Horses picks up where this leaves off.
References
Ag Proud / Progressive Forage, "Forage Market Insights: Early yields define the season's outlook," Marian Viney, May 14, 2026 (drought acreage percentages, northern California frost damage)
AgWest Farm Credit, Hay industry update, August 12, 2026 (Western price movement, carryover, alfalfa acreage, water restrictions)
Wilkes Journal-Patriot, "Alternative feeds due to drought explored," Matt Poore, N.C. Cooperative Extension Service, June 22, 2026 (North Carolina rainfall deficit and first cutting yields)
USDA Agricultural Marketing Service, Colorado Direct Hay Report, July 2026
University of Minnesota Extension, "Managing drought-stressed horse pastures," Krishona Martinson (NSC ranges, nitrate threshold)
Oregon State University Extension, "Understanding Sugar and Nonstructural Carbohydrates in Equine Pasture and Hay," EM 9415
Rutgers NJAES FS1340, "Non-structural Carbohydrates and Equine Warm-season Grass Pastures"
Longland and Byrd, "Pasture Nonstructural Carbohydrates and Equine Laminitis," Journal of Nutrition
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