Old Bay seasoning is likely low FODMAP safe. Its ingredient list does not contain garlic or onion, the two most common high FODMAP triggers hiding in spice blends. McCormick, the manufacturer, has confirmed that Old Bay was not formulated to contain garlic, and the label lists no onion. For anyone on the elimination phase of a low FODMAP diet, this is genuinely good news, though a few details are worth understanding before you shake it freely over everything.
What’s Actually in Old Bay
The full ingredient list reads: celery salt (salt and celery seed), spices (including red pepper and black pepper), and paprika. McCormick describes the blend as containing 18 herbs and spices, and has confirmed that ginger and cayenne pepper are among them. That vague “spices” label is what raises red flags for people following a low FODMAP diet, since it could theoretically hide garlic or onion powder.
Here’s where a key piece of food labeling law comes in. The FDA does not allow garlic or onion to be listed under the generic term “spices.” Under federal labeling rules, dried or dehydrated onions and garlic must be declared by their common names on ingredient labels. So if garlic or onion were present in Old Bay, McCormick would be legally required to list them explicitly. They don’t appear on the label, and the company has confirmed their absence when asked directly by consumers.
Why Garlic and Onion Matter So Much
Garlic and onion are among the highest FODMAP foods, and they show up in an enormous number of seasoning blends, sauces, and packaged foods. Garlic is particularly potent. Monash University testing found that garlic powder hits high FODMAP levels at just a quarter teaspoon, roughly 0.75 grams. That’s far less than what most recipes call for, which is why even small amounts hidden in a spice blend can cause symptoms for sensitive individuals.
Onion powder is similarly concentrated. Because both are so commonly used in seasoning mixes, many people on a low FODMAP diet learn to avoid any blend with a vague “spices” label. Old Bay is one of the relatively rare mainstream blends where you can verify that neither ingredient is present.
Other Ingredients to Consider
Celery seed, the base of Old Bay’s celery salt, has not been specifically tested by Monash University for FODMAP content. Most people on a low FODMAP diet tolerate it without issues, but it’s worth noting the gap in formal testing. The amount of celery seed per serving of seasoning is quite small, typically a fraction of a teaspoon, which works in your favor.
The remaining ingredients, including paprika, black pepper, red pepper, and ginger, are all considered low FODMAP at normal seasoning quantities. Paprika and black pepper are staples in low FODMAP cooking. Ginger is actually well tolerated by most people with IBS and may even help with nausea and digestive discomfort.
How to Use Old Bay on a Low FODMAP Diet
During the elimination phase, start with a typical seasoning amount, around half a teaspoon per serving. This keeps the total quantity of any individual spice well within safe ranges. Old Bay works especially well on shrimp, fish, roasted potatoes, corn, and chicken, giving you a flavorful option when so many other seasoning blends are off limits.
If you’re stacking Old Bay with other spice blends in the same meal, keep an eye on cumulative intake. FODMAPs can add up across foods, so a dish that combines multiple borderline ingredients might push you over your personal threshold even if each component looks safe on its own.
Old Bay Variants to Watch Out For
The classic Old Bay in the yellow and blue tin is the one with the clean ingredient list. McCormick also sells several Old Bay line extensions, including Old Bay Hot Sauce, Old Bay Blackened Seasoning, and various Old Bay flavored snack products. These variants may contain different ingredients, including garlic or onion. Always check the specific label on any product beyond the original seasoning blend. The FDA labeling rule works in your favor here: if garlic or onion is present, it will be listed by name.
Certified Low FODMAP Alternatives
If you want extra certainty, a few brands sell seasoning blends that carry official Monash University low FODMAP certification. Smoke ‘n Sanity, for example, offers a range of Monash-certified blends including dry marinades and seasonings made without common triggers. None of these are exact Old Bay replicas, but they give you another option for adding flavor with confidence. You can also make a DIY version using celery salt, paprika, black pepper, cayenne, and dry mustard, all individually low FODMAP, to control every ingredient yourself.