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Is Lettuce High In Potassium? (Good For You?)

Lettuce is a leafy vegetable that comes in various kinds and colors. It’s often added to salads, burgers, or sandwiches for extra flavor and crunchiness. 

It’s very low in calories, but it still contains some important nutrients, including potassium. 

So, can those on a low-potassium diet eat lettuce? Is lettuce high in potassium?

Is lettuce high in potassium?

Lettuce is low in potassium, as it contains less than 200 mg of this mineral in a single serving. This means that this leafy green is a great addition to any diet, especially for people looking to up their intake of vegetables. 

Lettuce is also incredibly low in calories, so it can help you lose weight in a healthy way.

Make sure to check out: Can You Check Your Potassium Level At Home? and The Best Low Potassium Snacks (Eat This, Not That).

How much potassium is in lettuce?

One cup of shredded green lettuce contains around 69 mg of potassium. This is way below the 200 mg limit, so you can safely eat lettuce if you follow a low-potassium, kidney-friendly diet. 

Lettuce is also very light for your digestive system, which means that it won’t irritate your stomach or kidneys. 

Additionally, it doesn’t contain too much of any mineral harmful to your urinary tract.

Holding a Lettuce

If you follow a diet especially low in potassium, you might want to stick to regular green leaf lettuce. 

This is because other types are slightly higher in potassium, so they might be harder for your kidneys. 

Other people should be perfectly fine with all types of lettuce, though.

Is lettuce good for you?

Lettuce, especially the standard green one, is incredibly low in calories. Most of those calories come from carbs, including fiber. 

Because of that, it’s often considered a zero-calorie food, which means that your body needs to use more energy to digest it than it gets from the food itself. 

In spite of that, it contains good amounts of various micronutrients, including vitamin C, calcium, and vitamin B6. 

So, eating lettuce can help you load up on vitamins and minerals without taking in unnecessary calories.

Calorie for calorie, romaine lettuce is the best source of fiber. 

This type of macronutrient helps soak up excess stomach acid, preventing heartburn and acid reflux. 

It also helps feed your digestive system’s ‘good’ gut bacteria. This keeps your digestive tract healthy and prevents many health issues. 

Eating foods high in fiber may also help you lose weight as it contributes to the feeling of fullness after eating. 

Various Lettuce
Various Lettuce

As a result, lettuce is a very healthy addition to any diet.

All types of lettuce are great sources of vitamin K. One cup of shredded lettuce contains over 70% of your daily need for this nutrient. 

Vitamin K is a fat-soluble vitamin. It plays a central role in blood clotting, bone metabolism, and calcium levels regulation. 

As it dissolves in fat, it’s important to consume vitamin K-rich foods along with some foods high in healthy fats to ensure that you’re getting as much vitamin K as possible.

Lettuce is also loaded with antioxidants, powerful compounds that help flush out free radicals from your body. 

This prevents oxidative stress and damage to your cells, reducing the risk of various health conditions, such as heart disease, diabetes, and even cancer. 

The same antioxidants also help fight inflammation, which lowers the levels of ‘bad’ cholesterol and increases the ‘good’ cholesterol levels. 

So, it’s very important to consume a lot of antioxidant-rich foods, especially leafy greens, and other veggies.

Can you take in too much potassium from lettuce?

Lettuce is considered a low-potassium food, which means that you’re very unlikely to take in too much of this mineral from just eating lettuce alone. 

It’s also filling and low in calories, so it’s often consumed with other ingredients like fresh veggies, meat, or fish. 

Holding head of lettuce

As a result, it’s nearly impossible to overdose on potassium from lettuce. So, you can safely include this leafy green on a low-potassium diet, no matter how strict it is.

Is Iceberg lettuce high in potassium?

A one-cup serving of iceberg lettuce contains 102 mg of potassium. It’s slightly higher in potassium than other varieties, but it also provides you with more other vitamins and minerals. 

Iceberg lettuce is crunchier than other kinds and has a much more neutral taste. 

As a result, most people often prefer it, especially those who find it hard to eat enough leafy greens.

Is red lettuce high in potassium?

One cup of shredded red lettuce contains 53.4 mg of potassium. Red leaf lettuce contains slightly more iron and vitamin K than some other types of lettuce. 

It’s also a good source of magnesium, which helps keep your heart healthy and reduces the risk of many cardiovascular conditions. 

It’s most often used as a replacement for green leaf lettuce to add color and flavor to dishes. 

So, you can freely alternate between different lettuce types to add variety and color to your meals.

Is romaine lettuce high in potassium?

One cup of shredded romaine lettuce contains around 116 mg of potassium. Romaine lettuce is higher in potassium than some other types, but it also packs more fiber and vitamin C. 

These two nutrients are very important for your health, as fiber can help you lose weight, while vitamin C boosts your immune system and acts as a powerful antioxidant, helping in the prevention of various chronic conditions.


Is bibb lettuce high in potassium?

Classified under butter lettuce, bibb lettuce contains 131 mg of potassium in a one-cup serving. 

It’s higher in potassium than other types of lettuce, but it can still be a great part of a low-potassium diet. 

Bibb lettuce is also a wonderful source of vitamins A and K, contributing to various important bodily processes and functions. 

It has loose, round-shaped leaves, and tastes buttery and crunchy, which makes it a great part of many salads and dishes.


Lettuce in all its kinds is a low-potassium food that’s suitable for people with potassium sensitivity or kidney disease. 

As a result, you can safely incorporate this leafy green into your diet without worrying about any adverse effects on your health. 

Lettuce is not as rich in nutrients as other greens, but it’s still pretty healthy, providing you with some important health benefits. 

Don’t know which foods are high in potassium? Read our article 15 Best Food Sources Of Potassium. We also have a guide on this important mineral: Potassium 101: All You Need To Know About Potassium.