The Cream Cheese Ingredient You May Want to Rethink

Cream cheese seems like one of those foods that should be simple. Milk, cream, salt, maybe a culture, and that’s about it. But flip over a tub of conventional cream cheese, and you may find an ingredient that isn’t part of the traditional cream cheese-making process: natamycin.

Philadelphia’s current Original Cream Cheese Spread lists pasteurized milk and cream, salt, guar gum, natamycin, and cheese culture among its ingredients. Natamycin is used as an antifungal agent to inhibit mold growth and extend the product’s shelf life.

And that’s exactly why it’s worth paying attention to.

What Is Natamycin?

Natamycin, also known as pimaricin, is an antifungal compound produced by certain bacteria. It belongs to a class of compounds known as polyene antifungals and works by interfering with fungal cells.

In food production, its antifungal properties make it useful as a mold inhibitor. It can help slow fungal growth and extend the usable life of certain foods.

That may make sense from a food manufacturing perspective. But it also raises a question for consumers: do we need an antifungal compound in a food we eat regularly when there are alternatives that don’t contain it?

That’s an especially relevant question when you’re trying to reduce unnecessary additives in your diet.

Why Is Natamycin Added to Cream Cheese?

Cream cheese is a moist, refrigerated food, so controlling mold growth is an important part of keeping the product fresh. Natamycin gives manufacturers another tool for slowing fungal growth and helping maintain the product during its shelf life.

In other words, it’s there for a reason.

But “there’s a reason it’s there” isn’t the same thing as “you need to eat it.”

Food manufacturers formulate products around shelf life, consistency, manufacturing efficiency, transportation, and consumer expectations. Those goals don’t always line up perfectly to minimize unnecessary exposure to biologically active additives.

This is where label reading becomes useful.

Instead of asking whether every ingredient in a conventional product is technically permitted, ask a simpler question: Is there another version of the same food that doesn’t contain the ingredient I’m trying to avoid?

With cream cheese, the answer is often yes.

The Bigger Issue: What Are We Eating Every Day?

It’s time to start paying attention to the ingredients that recur in your diet. A food additive might not be something you consciously choose to consume, but if it’s included in a product you eat several times a week, your exposure becomes habitual.

That’s why ingredient lists matter. You can look for opportunities where a simple swap allows you to remove an unnecessary ingredient without giving up the food you actually enjoy. Cream cheese is a good example.

What About the Gut Microbiome?

This is where natamycin deserves a closer look.

The gut microbiome is a complex community of bacteria, fungi, and other microorganisms that interact with one another and with the human body. Maintaining a healthy microbial ecosystem involves much more than simply counting beneficial bacteria; the balance and diversity of microorganisms matter.

Natamycin is an antifungal compound. Its intended function is to inhibit fungal growth. That raises an obvious question: when an antifungal compound is consumed, could its biological activity affect the microorganisms living in the gut?

The science surrounding food additives and the gut microbiome is an evolving area of research, and the effects of individual compounds can depend on factors such as dose, exposure, and the characteristics of the individual microbiome.

That uncertainty is precisely why a precautionary approach can make sense.

Rather than waiting until every possible long-term effect of an ingredient has been fully mapped out, consumers can reduce unnecessary exposure when it’s easy and doesn’t require giving up the food altogether.

That’s the approach here.

The recommendation isn’t that a single serving of Philadelphia cream cheese will destroy your gut microbiome. The recommendation is much simpler: if you’re buying cream cheese regularly and you have an easy option without an antifungal additive, why not choose the simpler version?

The Four-Ingredient Alternative

One of the easiest ways to make this swap is to look for cream cheese with a short, recognizable ingredient list.

A four-ingredient block can be a particularly appealing option because it lets you keep the same basic ingredients while eliminating one you may prefer not to consume.

Look for products whose ingredient lists are built around milk, cream, salt, and cultures.

The exact formulation will vary by brand, so don’t rely on the front of the package. Turn it around and read the ingredient list. That’s where you’ll see whether natamycin, gums, stabilizers, preservatives, or other additives have been included.

Another Option: Organic Cream Cheese

Organic cream cheese is another option worth considering.

Choosing organic doesn’t automatically mean you’re getting an additive-free product. Organic foods can still contain ingredients that are permitted under organic standards, so the ingredient list still matters.

But if you’re already prioritizing organic dairy, compare the available organic cream cheeses and look for the simplest formulation you can find.

The ideal goal isn’t simply to see the word “organic” on the front of the package. It’s to find a product that aligns with what you’re actually trying to reduce: unnecessary additives and ingredients you don’t need.

Don’t Let “Natural” End the Conversation

There’s another detail worth noticing on the label conversation around natamycin: it may be described as a “natural” mold inhibitor. But natural doesn’t automatically mean harmless.

Natamycin is produced by microorganisms in nature and remains a biologically active antifungal compound. The important question isn’t whether something comes from nature. It’s what the substance does, why it’s being added, and whether you actually need it in your food.

This is an important distinction when shopping for packaged foods. Instead of asking only whether an ingredient is natural, ask:

What is it?

Why is it in this food?

What biological activity does it have?

Do I need it?

Is there a comparable product without it?

That last question can be especially powerful. You don’t need to prove that an ingredient is unquestionably toxic before deciding that you would rather not consume it when there’s an easy alternative.

A Better Way to Shop for Cream Cheese

The next time you’re standing in the refrigerated section, compare two or three cream cheese products side by side.

Start with the ingredient list rather than the marketing on the front. Look for a short list of recognizable ingredients. If avoiding natamycin is a priority, check the label specifically for it. Also, pay attention to unnecessary flavors, sweeteners, gums, stabilizers, and other additives that aren’t needed in a basic cream cheese. If organic dairy is important to you, compare organic options while still reading the full ingredient list.

The Non-Toxic Swap

If Philadelphia cream cheese is a regular item in your refrigerator, this is an easy label-reading experiment.

– Take your usual tub and turn it around.

– Look at the ingredient list. You’ll find natamycin listed in the current U.S. formulation as an antifungal mold inhibitor.

– Then compare it with a block or tub containing only a handful of recognizable ingredients. If you find a four-ingredient option without natamycin, that’s the kind of swap worth making.

You’re not giving up cream cheese. You’re simply choosing the version with fewer unnecessary ingredients.

The Bottom Line

The takeaway isn’t that you need to throw away every tub of conventional cream cheese in your refrigerator. You must know what’s in the foods you eat regularly.

Natamycin is an antifungal compound used in some cream cheese products to inhibit mold growth and extend shelf life. Because it is biologically active against fungi, it is reasonable to take a closer look at why you’re consuming it and whether you have an easy alternative. In this case, you often do.

A four-ingredient cream cheese without natamycin is a simple swap. Organic cream cheese with a short ingredient list can be another option.

Frequently Asked Questions

What is natamycin in cream cheese? Natamycin, also known as pimaricin, is an antifungal compound used as a mold inhibitor in some cream cheese products. Its purpose is to help inhibit fungal growth and extend product shelf life.

Why is natamycin added to cream cheese? Natamycin is added because of its antifungal properties. It helps manufacturers control mold growth and maintain product quality during storage.

Does natamycin affect the gut microbiome? Natamycin is an antifungal compound, making its interactions with microbial ecosystems an important area to consider. A practical precautionary approach is to choose products without natamycin when an easy alternative is available.

How can I find cream cheese without natamycin? Read the ingredient list and look for cream cheese made with a short list of recognizable ingredients. Four-ingredient options that include milk or cream, salt, and cultures can be a simple alternative.

Is organic cream cheese free of natamycin? Not automatically. Organic certification does not mean that every product is free from additives, so always check the ingredient list. Look for an organic cream cheese with a short, recognizable ingredient list if minimizing additives is your goal.

What is the easiest cream cheese swap? Compare your usual cream cheese with a four-ingredient block or another product made without natamycin. If the simpler product meets your needs, that’s an easy everyday swap.

 

References:

1. Zhou, X., Qiao, K., Wu, H., & Zhang, Y. (2023). The impact of food additives on the abundance and composition of gut microbiota. Molecules, 28(2), 631. https://doi.org/10.3390/molecules28020631