How Much Magnesium in a Banana? Facts and Nutrition

Updated: Aug 11, 2026Topvitamine

Magnesium in a Banana

A medium banana contains about 32 mg of magnesium, covering roughly 8% of the daily value for adults. While this makes bananas a decent source of magnesium among fruits, they are not the most magnesium-dense food available.

The Role of Bananas in Daily Intake

Incorporating bananas into your daily diet can help support your overall magnesium intake, especially when combined with other foods like leafy greens, nuts, and legumes.

Magnesium Content Across Fruits

When compared to other fruits, bananas stand out for their magnesium content, though avocados and certain berries offer more.

Where is magnesium found in a banana? - Topvitamine

How Much Magnesium in a Banana?

A medium-sized banana (about 118 grams) contains roughly 32 milligrams of magnesium. That's about 8% of the Daily Value for adults. The mineral is present throughout the fruit's flesh.

Banana Nutrition: More Than Just Magnesium

While bananas are often associated with potassium, they also offer several other essential nutrients. A medium banana provides:

  • Potassium: 422 mg (12% of the Daily Value)
  • Vitamin C: 10 mg (11% of DV)
  • Vitamin B6: 0.4 mg (22% of DV)
  • Fiber: 3 g (12% of DV)

This nutrient profile makes bananas a practical food for supporting energy metabolism and overall well-being.

Bananas vs. Other Magnesium-Rich Foods

To help you plan a magnesium-rich diet, here's how bananas compare to other common foods:

  • Spinach (cooked): 79 mg per 100g
  • Almonds: 270 mg per 100g
  • Avocado: 29 mg per 100g
  • Banana: 27 mg per 100g
  • Broccoli: 21 mg per 100g

While bananas are a good source, incorporating a variety of these foods ensures you meet your magnesium needs.

Increasing Magnesium Intake with Bananas

Getting enough magnesium is vital for health, and bananas can be a helpful part of that effort. Here are a few simple ways to include them in your diet:

  • Breakfast: Add banana slices to your morning oatmeal or yogurt.
  • Snack: Serve with a spoonful of almond butter for added healthy fats and magnesium.
  • Smoothie: Blend a banana with spinach and unsweetened almond milk for a nutrient-dense drink.

Frequently Asked Questions

Are bananas high in magnesium?

While bananas are not the richest source of magnesium, they provide a moderate amount (about 8% of the Daily Value per medium fruit), which can contribute to your overall daily intake.

What fruit is highest in magnesium?

Avocados are among the highest, with about 29 mg per 100g. Other fruits like raspberries and blackberries also provide more magnesium per serving than bananas.

How can I get 400 mg of magnesium a day from food?

To reach a 400 mg daily intake, you would need to eat more than just bananas. Include a variety of magnesium-rich foods like nuts, seeds, legumes, and leafy green vegetables in your diet, alongside fruits like bananas.

Should I consider a magnesium supplement?

If you're considering a magnesium supplement, it's essential to consult a healthcare professional to determine if it's necessary and to get advice on the right dosage for you.

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