Do Steroid Shots Increase Your Appetite?

Steroid shots can increase your appetite, and the effect is more common than many people expect from a “local” injection. When a corticosteroid is injected into a joint, bursa, or the epidural space, the medication does not stay put. It enters the bloodstream and circulates throughout the body, triggering many of the same metabolic and hormonal changes seen with oral steroid pills. One of those changes is a noticeable uptick in hunger, often accompanied by cravings for calorie-dense foods. The intensity and duration vary from person to person, but the underlying biology is well established.

Why a Local Injection Affects the Whole Body

The steroid in a cortisone shot is a synthetic glucocorticoid, a lab-made version of cortisol. When injected into a specific area to reduce inflammation, the drug gradually leaks out of the injection site and into the bloodstream. A review of the evidence on locally injected glucocorticoids concluded that both joint injections and epidural injections can produce systemic effects lasting weeks, with complications that include blood-sugar spikes, bone-density loss, and even features of Cushing syndrome in some cases.¹ The amount of steroid that reaches the rest of your body varies quite a bit from one person to the next, which is part of why some people feel ravenous after a knee injection while others barely notice a change.

Once the glucocorticoid is circulating systemically, it acts on the same receptors and pathways that respond to your own cortisol. That includes receptors in the brain that regulate hunger, fat storage, and food reward. In other words, as far as your appetite-control systems are concerned, there is not much difference between a steroid pill and a steroid shot once the drug gets into the blood.

How Glucocorticoids Ramp Up Hunger

Glucocorticoids push appetite upward through several overlapping routes. They can directly increase food intake and shift food preferences toward high-calorie options like sweets and fatty foods.² This is not simply a matter of feeling a vague urge to eat more. People on glucocorticoids often describe specific cravings, particularly for carbohydrate-rich and sugary foods, that feel different from normal hunger.

Part of this effect works through appetite-related hormones. In a study that gave women oral glucocorticoids and tracked their eating behavior, leptin levels rose after both two and seven days of treatment, and measured food intake increased significantly by day seven.³ Leptin normally acts as a satiety signal, telling the brain you have enough stored energy, so the fact that leptin went up while people still ate more suggests glucocorticoids disrupt the brain’s sensitivity to that “full” signal. Research on cortisol’s broader metabolic web shows that higher cortisol levels also predict greater weight gain and increased food cravings, particularly for starches, over a span of months.⁴

Another piece of the puzzle is blood sugar. Glucocorticoids push glucose levels up by telling the liver to produce more sugar and making muscle and fat cells less responsive to insulin. When blood sugar swings up and then crashes back down, the dip itself can trigger hunger. So even if the glucocorticoid were not acting directly on the brain’s appetite centers, the metabolic ripple effects alone could leave you reaching for a snack.

How Much More Do People Actually Eat?

Quantifying the appetite boost from a single steroid injection is tricky because most controlled studies used oral steroids, not injections. Still, the numbers give a useful ballpark. A study tracking energy intake in children receiving glucocorticoid therapy found that steroid treatment increased daily calorie consumption by roughly 20%.⁵ Those children were on higher and more sustained doses than a typical joint injection provides, so the effect from a single shot would almost certainly be smaller. But a 20% bump illustrates the direction and potential magnitude of the change when glucocorticoid levels stay elevated.

A systematic review looking at oral glucocorticoid therapy in adults found that short-term treatment produced small increases in energy intake without meaningful weight gain, while long-term use led to clinically significant weight gain.⁶ The review also noted that short-term glucocorticoids appeared to raise energy expenditure alongside intake, which may be why the scale does not move much with brief courses. For someone getting an occasional steroid injection for a sore shoulder or aching knee, this is reassuring: the appetite boost is real, but a single shot is unlikely to cause lasting weight gain on its own.

The Blood Sugar Connection, Especially for People With Diabetes

If you have diabetes, steroid injections deserve extra respect. A study tracking fasting blood glucose in diabetic patients after corticosteroid injections into the hand or wrist found a substantial spike on the first day after the shot, averaging more than 40 mg/dL above baseline, with a smaller but still significant elevation on day two.⁷ By day three the increase was no longer statistically significant, and by days four through seven, levels had returned to normal. Patients with type 1 diabetes and those using insulin were the most likely to see a dramatic spike of more than 50 mg/dL on the first day.

Those blood-sugar swings do more than raise A1C concerns. When glucose spikes sharply and then drops, it can intensify hunger and make cravings feel urgent. So for someone with diabetes, a steroid shot carries a double hit: the glucocorticoid acts directly on appetite systems in the brain, and the resulting glucose roller coaster adds its own hunger signals on top. If you are managing diabetes and have a steroid injection scheduled, it is worth discussing a plan for monitoring blood sugar more closely in the first couple of days afterward and adjusting insulin or medication timing as your care team recommends.

How Long Does the Appetite Effect Last?

The timeline depends on the specific steroid formulated and on individual metabolism, but a reasonable expectation is that appetite changes from a single injection peak within the first few days and taper off over one to three weeks. The systemic effects of locally injected glucocorticoids have been documented to persist for weeks.¹ That does not mean you will feel insatiably hungry for that entire stretch, though. Appetite tends to be most noticeably elevated during the period of highest systemic steroid levels, which for most formulations is the first week or so. After that, blood levels taper and the hunger effect fades along with them.

The blood-glucose data support a similar timeline. In the hand-and-wrist injection study described above, glucose was back to baseline by day four.⁷ Since the glucose surge is one driver of increased hunger, appetite changes tied specifically to blood-sugar instability likely follow a similar curve. The direct brain effects of the glucocorticoid could linger a bit longer as the drug continues to wash out, but most people report that the appetite oddness subsides well before the anti-inflammatory benefit wears off.

Does the Injection Site or Steroid Dose Change the Appetite Risk?

You might assume that a larger joint injection or a higher-dose formulation would produce a bigger appetite effect. The relationship is not as straightforward as you would think. A prospective study of epidural steroid injections found that the method, site, type of steroid, and dose were not significantly associated with the occurrence of systemic reactions.⁸ Meanwhile, the systematic review of oral glucocorticoid research did not find a clear dose-response relationship for energy intake, appetite, or body weight either.⁶

This does not mean dose is irrelevant, just that individual variability seems to overshadow the dose effect. Two people can receive the same milligram amount of the same steroid into the same joint, and one may come home famished while the other feels no different. Factors like your body composition, how quickly your liver metabolizes the drug, and your baseline cortisol sensitivity all play a role. The practical takeaway is that you cannot predict how hungry you will get based on which joint is being injected or exactly how many milligrams are going in.

Why Some People Seem Hit Harder Than Others

Beyond the general person-to-person variability, there are biological reasons why the appetite effect hits some groups harder. Animal research has found that male rats are more susceptible to the appetite-boosting, fat-storing effects of glucocorticoids than female rats.⁹ In those experiments, glucocorticoid treatment increased body weight, food intake, and fat-cell size in males, while females showed no significant changes. The researchers attributed the difference partly to the protective effects of circulating estrogens and partly to differences in how male and female tissues express the receptors that glucocorticoids bind to.

Extrapolating from rat studies to human clinical experience requires caution, but the finding aligns with something clinicians have noticed informally: many patients report that the appetite and weight effects of steroid therapy seem to vary by sex and by hormonal status. Postmenopausal women, who have lower estrogen levels, may be more vulnerable than premenopausal women, though controlled human data on this specific question are thin. The broader point is that your hormonal environment modulates how aggressively a steroid injection affects your eating behavior.

Baseline stress levels matter too. People who are already running on elevated cortisol from chronic stress seem to have their appetite-regulating hormones skewed in ways that amplify the effect. Higher cortisol at baseline predicts not only greater weight gain but also stronger food cravings, especially for starchy foods, over the following months.⁴ Add an exogenous glucocorticoid on top of an already-elevated cortisol baseline, and the appetite push can feel more pronounced.

Practical Ways to Manage Appetite After a Steroid Shot

Knowing that the hunger is pharmacological rather than a genuine signal that your body needs more calories is the single most useful piece of information. When the craving for a second lunch hits two days after a knee injection, recognizing it as a drug side effect can help you pause before acting on it. A few strategies tend to help:

Front-load protein and fiber: Meals that are heavier on protein and fiber tend to sustain satiety through different hormonal pathways than the ones glucocorticoids are disrupting. They will not eliminate the hunger, but they can blunt the peaks.
Watch the sugar: Since steroid shots push blood glucose up and glucocorticoids already steer cravings toward sweets, eating sugary foods during the first few days can create a cycle of spike-and-crash that makes hunger worse. Choosing lower-glycemic options can smooth out the ride.
Plan meals in advance: The cravings tend to be impulsive. Having meals and snacks pre-decided (or pre-prepared) reduces the chance of giving in to an unplanned run to the pantry.
Stay hydrated: Mild dehydration is commonly mistaken for hunger, and glucocorticoids can increase fluid turnover. Keeping water handy is a low-effort hedge.
Expect it to be temporary: For most people getting a single injection, the appetite surge subsides within one to two weeks. Knowing it will end makes it easier to ride out.

If you have diabetes, the plan looks a bit different. Rather than simply being mindful about food choices, you should actively monitor blood glucose more frequently for at least the first two to three days after the injection. People using insulin may need to adjust their dosing during that window, in coordination with their provider.

Repeated Injections and Cumulative Effects

A single cortisone shot every few months is unlikely to cause meaningful weight gain by itself. The appetite increase is modest and short-lived, and the systematic review evidence suggests that brief glucocorticoid exposure raises energy expenditure enough to partially offset the extra calories consumed.⁶ The concern grows when injections become frequent. Some people with chronic joint problems receive steroid shots every two to three months, or in multiple joints during the same period. At that frequency, the windows of elevated appetite begin to overlap, and the cumulative effect starts to resemble what the research shows for long-term glucocorticoid therapy, where clinically significant weight gain becomes much more likely.

There is also a secondary pathway to consider. Repeated blood-sugar spikes from frequent injections, even brief ones, can gradually erode insulin sensitivity. Over time that may shift your metabolic baseline in a direction that makes weight management harder independent of appetite changes. This is not a reason to refuse a steroid injection you genuinely need, but it is a reason to track how many you are getting per year and discuss alternatives if the number is climbing.

When Appetite Changes Signal Something Worth Mentioning to Your Doctor

Most post-injection appetite increases are minor inconveniences that resolve on their own. Occasionally, though, the systemic effects of an injection are more dramatic. If you experience persistent hunger lasting more than two to three weeks, facial puffiness, unusual fat distribution around the midsection or upper back, severe mood swings, or persistent insomnia alongside the appetite changes, those features can suggest a more significant systemic glucocorticoid response. The review on locally injected glucocorticoids lists Cushing syndrome features among documented complications, though they are uncommon from a single injection.¹ These are worth reporting, particularly if you are getting injections in more than one site or combining them with inhaled or topical steroids that add to the overall glucocorticoid load your body is processing.

For most people, though, the experience is straightforward: you get the shot, your shoulder or knee starts feeling better over the next few days, and for roughly a week you feel hungrier than usual, particularly for comfort food. It is a real biological effect, not imagined, and it is temporary. Understanding the mechanism makes it far easier to manage.

1
PubMed. Systemic Absorption and Side Effects of Locally Injected Glucocorticoids
2
PubMed Central. Glucocorticoids, stress and eating: The mediating role of appetite‐regulating hormones
3
PubMed. Effects of glucocorticoids on leptin levels and eating behaviour in women
4
PubMed Central. Stress, cortisol, and other appetite-related hormones: Prospective prediction of 6-month changes in food cravings and weight
5
The Journal of Clinical Endocrinology & Metabolism. Effect of Glucocorticoid Therapy on Energy Intake in Children Treated for Acute Lymphoblastic Leukemia
6
Nutrition Research. A systematic review of the effect of oral glucocorticoids on energy intake, appetite, and body weight in humans
7
PubMed Central. Blood glucose levels in diabetic patients following corticosteroid injections into the hand and wrist
8
PubMed Central. The Incidence of Various Types of Systemic Reactions Related to Epidural Steroid Injections: A Prospective Observational Study
9
PubMed. Sex differences in glucocorticoids-induced anabolic effects in rats