Is Peanut Butter Unhealthy? The Case of Peanut Butter on a Rice Cake

Karin on a Rant

A departure from our usual blog fare, where I take dastardly pleasure in bringing up one maddening little diet-culture idea and prosecuting the case.

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My niece, who is working as an au pair in Germany, recently told me that she put peanut butter on a rice cake and was promptly chastised by her host:

“You just took a perfectly healthy food and made it unhealthy.”

Oh dear.

Now, fortunately, my niece has spent enough time around me—and has been interested enough in intuitive eating herself—that she knew better. She wasn’t suddenly suspicious of peanut butter. She didn't feel bad or guilty. She was, however, quite dismayed.

She immediately called me, essentially to say, “Oh my God. How do I deal with this? She thinks what I’m eating is unhealthy, and I know she’s judging me.”

So my niece called me to rant about the woman. And now I’m ranting about my niece’s rant.

Apparently, the rice cake had been doing beautifully until the peanut butter came along and ruined everything. There it was: light, airy, virtuous. Practically a nutritional saint. Then someone smeared peanut butter on it.

Now we have a problem. Because peanut butter has calories. More calories than that minimal rice cake.

And somewhere along the way, we became so accustomed to equating low calorie with healthy that this sentence can actually sound reasonable: You took a healthy food and made it unhealthy by giving it more nutrition.

When One Food Becomes the Villain, Another Food Becomes a Saint

Let’s review the evidence.

The rice cake contributed mostly carbohydrate and a minimal amount of energy.

The peanut butter added protein and fat. Energy! Some vitamins and minerals. Flavor. Satisfaction. And a much better chance that the person eating the snack might not immediately start looking around for something else to eat.

But sure. The peanut butter was the problem.

This is where nutrition culture makes me a little crazy.

We have somehow managed to take one property of food—how many calories it contains—and elevate it above virtually everything else.

Lower calorie? Better.

Higher calorie? Suspicious.

Never mind whether the person is hungry.

Never mind whether the food is satisfying.

Never mind whether it supplies something the person actually needs.

Never mind whether the “healthy” low-calorie snack leaves them rummaging through the kitchen twenty minutes later wondering why they can’t stop thinking about food.

The calories were lower.

Mission accomplished.

Except what exactly was the mission?

If the goal of eating is simply to consume as few calories as possible—regardless of nutrition, health, or what the person actually needs—then yes, leave the peanut butter off.

Actually, why stop there?

Skip the rice cake too.

Zero calories.

Perfect health.

Obviously, that’s absurd. And yet it is the logical endpoint of a way of thinking about nutrition that treats “less” as inherently better.

You Miss Out Hugely When You Judge Food by Calories Alone

Food is supposed to do something.

It is supposed to nourish us. Give us energy. Satisfy hunger. Help sustain us until we need to eat again. Supply nutrients. Support a functioning body.

Oh, and it is supposed to provide enjoyment. Somehow, in our pursuit of “healthy eating,” we’ve managed to treat enjoying food as if it were nutritionally irrelevant.

Sometimes making a food more calorically dense makes it more useful.

Sometimes adding peanut butter to a rice cake makes the snack work better.

And sometimes the lower-calorie choice is, in reality, the less health-giving choice.

That doesn’t mean peanut butter is universally “healthy,” either. That would simply replace one simplistic rule with another.

It Seems “Healthy” Has Stopped Meaning Healthy

This may be the larger problem with the whole healthy/unhealthy food conversation. We talk about the healthfulness of a food as though it were a fixed characteristic of the food itself.

As if a rice cake carries a little HEALTHY label inside it and peanut butter arrives carrying an UNHEALTHY one.

But people have different bodies, different appetites, different medical needs, different eating histories, different energy requirements, and different relationships with food.

A person who hasn’t eaten enough needs something different from a person who has.

A person who becomes preoccupied with food after eating inadequate meals needs something different from someone who feels satisfied.

Even the same person may need something different on Tuesday than they needed on Monday.

So Much Judgment. So Little Sense.

Which brings us back to the scene of the crime.

One rice cake.

One spoonful of peanut butter.

No nutritional catastrophe.

Just one maddeningly inane diet-culture comment—one that could do real damage to someone more vulnerable to it.

But my niece survived—and, more importantly, knew enough not to believe the indictment.

Good on you, Caroline.

And I got a perfectly good rant out of it.

Because you cannot separate the healthfulness of a food from the person eating it—and that is what matters.