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Are green beans healthier than broccoli? A nutritional deep dive

4 min read

According to the Dietary Guidelines for Americans, we should aim for 2 to 3 cups of vegetables daily to support overall health. This leads many to wonder if they should prioritize certain vegetables over others, with a common question being: Are green beans healthier than broccoli?.

Quick Summary

This article compares the nutritional profiles of green beans and broccoli, examining their macronutrients, vitamins, and unique bioactive compounds to determine their respective health benefits. It explores their differences to help you make an informed dietary choice.

Key Points

  • Nutrient Density: While both are healthy, broccoli is generally more nutrient-dense per serving, especially in vitamins C and K.

  • Unique Compounds: Broccoli contains sulforaphane, a powerful antioxidant studied for its potential cancer-fighting properties, which green beans lack.

  • Better for Digestion: Green beans are a low-FODMAP food, which may be more suitable for individuals with sensitive digestive systems like IBS.

  • Excellent Fiber Source: Both vegetables are great sources of dietary fiber, promoting healthy digestion and heart health.

  • Variety is Best: The healthiest approach is not choosing one over the other but incorporating a variety of different vegetables into your diet to maximize nutritional intake.

In This Article

For many, the debate between two of the most common green vegetables comes down to a simple question: Are green beans healthier than broccoli? While both are undeniably nutritious and worthy of a place in a healthy diet, a closer look at their individual nutritional profiles reveals some key differences. The answer isn't a simple yes or no, but rather depends on which nutrients and health benefits you prioritize. By breaking down their composition and discussing their specific benefits, you can decide which veggie is the best fit for your plate.

Nutritional snapshot: Green beans vs. broccoli

Both green beans and broccoli offer a low-calorie, nutrient-dense package, but they excel in different areas. While green beans provide a balanced mix of vitamins, broccoli is a standout powerhouse for certain micronutrients and unique plant compounds. Comparing them side-by-side helps to highlight these contrasts. The figures below are based on a 100-gram serving of each vegetable, raw and unprepared, unless otherwise noted.

Macronutrient comparison

Looking at the bigger picture, both vegetables are low in calories and fat while providing a healthy dose of fiber and a small amount of protein.

Green Beans (raw, approx. per 100g):

  • Calories: 31 kcal
  • Protein: 1.8g
  • Carbohydrates: 7g
  • Fiber: 3.4g
  • Fat: 0.1g

Broccoli (raw, approx. per 100g) [2.7.2, adjusted]:

  • Calories: 39 kcal
  • Protein: 2.6g
  • Carbohydrates: 6.2g
  • Fiber: 2.4g
  • Fat: 0.4g

In terms of overall macros, the differences are minimal, with broccoli offering slightly more protein and green beans containing slightly more fiber per serving. Both are excellent choices for anyone watching their calorie and fat intake.

Micronutrient deep dive: Vitamins and minerals

This is where the differences between these two vegetables become more pronounced. Broccoli generally packs a greater punch in terms of vitamins C and K, while green beans hold their own in other areas like folate.

  • Vitamin C: Broccoli is an exceptional source of vitamin C, an antioxidant crucial for immune function and collagen production. A single cup provides nearly the entire daily recommended value. Green beans also contain a good amount of vitamin C, though significantly less per serving than broccoli.
  • Vitamin K: Both are excellent sources, but broccoli contains a higher concentration. Vitamin K is vital for proper blood clotting and bone health by helping with calcium absorption.
  • Folate (Vitamin B9): Green beans are a noteworthy source of folate, important for cell growth and DNA formation, especially for pregnant individuals. Broccoli also provides folate but in lesser amounts.
  • Vitamin A: Broccoli offers more beta-carotene, which the body converts into vitamin A for healthy vision and immune function.
  • Minerals: Broccoli is a better source of calcium, crucial for bone health, while both are good sources of potassium and manganese.

Phytonutrients and health benefits

Beyond the standard vitamins and minerals, specific phytonutrients give each vegetable unique health-promoting properties.

  • Broccoli and Sulforaphane: Broccoli is a cruciferous vegetable, which means it contains a powerful compound called sulforaphane. This antioxidant is extensively studied for its potential to protect against certain types of cancer by reducing oxidative stress and inflammation. It also contributes to gut health and has anti-inflammatory effects.
  • Green Beans and Antioxidants: Green beans contain a variety of antioxidants, including flavonoids like quercetin and kaempferol. These compounds help protect cells from damage and contribute to overall health. Green beans are also considered a low-FODMAP food, making them a gentler option for individuals with digestive issues like irritable bowel syndrome (IBS).

Comparative table of nutrients

To provide a clear, side-by-side look, here is a comparison of key nutrients per 100 grams of raw vegetables:

Nutrient Broccoli (raw) Green Beans (raw)
Calories ~39 kcal 31 kcal
Protein ~2.6g 1.8g
Fiber ~2.4g 3.4g
Vitamin C ~101% DV ~14% DV
Vitamin K ~86% DV ~36% DV
Folate ~16% DV ~8% DV
Calcium ~5% DV ~4% DV
Potassium ~8% DV ~4% DV

Cooking method matters

The way you prepare these vegetables can significantly impact their nutritional content. Lightly steaming broccoli preserves more of its vitamin C compared to boiling, which can cause water-soluble nutrients to leach out. For green beans, steaming or sautéing is better than boiling for nutrient retention. When using canned green beans, rinsing them thoroughly is recommended to remove excess sodium.

The verdict: Why variety is key

Ultimately, the question of are green beans healthier than broccoli? is best answered by embracing variety. There is no single "better" vegetable, as each offers a distinct set of nutrients and benefits.

  • Choose broccoli when you want a huge boost of vitamin C, vitamin K, and protective sulforaphane.
  • Choose green beans for their fiber content, decent folate, and gentle digestion properties.

By including both in your meals throughout the week, you ensure a broad spectrum of vitamins, minerals, and phytonutrients to support your health. A healthy diet isn't about picking a single champion, but building a diverse team of nutritious foods. For more on the benefits of cruciferous vegetables, see Healthline's detailed guide on broccoli.

Frequently Asked Questions

Broccoli contains significantly more vitamin C per serving than green beans, with a cup providing nearly the entire daily recommended value.

Yes, broccoli contains a potent antioxidant called sulforaphane, which has been studied for its potential anti-cancer and anti-inflammatory effects. This compound is not found in green beans.

For some individuals, especially those with sensitive digestive systems or IBS, green beans may be better for digestion as they are a low-FODMAP food. Broccoli can cause bloating for some.

Both vegetables support bone health due to their vitamin K content, which aids calcium absorption. Broccoli contains a higher amount of both vitamin K and calcium.

Lightly steaming or eating broccoli raw is the best way to preserve its vitamin C content. Boiling can cause water-soluble nutrients to leach into the cooking water.

No single vegetable can provide all the necessary nutrients. A balanced and varied diet that includes both green beans, broccoli, and other vegetables is the best way to ensure optimal nutritional intake.

Canned green beans can be a healthy option, but often contain added sodium. To reduce salt intake, it is best to rinse canned green beans thoroughly before eating, or opt for low-sodium or no-salt-added varieties.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.