Tomatillos and tomatoes are common staples in Mexican and Central American cuisine, often used interchangeably by those unfamiliar with their distinct differences. Though they belong to the same nightshade family, they are different species and offer unique nutritional advantages. A comprehensive comparison reveals that neither is definitively 'healthier' than the other; rather, they excel in different nutritional areas. For example, a tomato is rich in the powerful antioxidant lycopene, while a tomatillo contains unique compounds known as withanolides. The choice between the two often comes down to specific dietary goals.
The Antioxidant Advantage: Lycopene vs. Withanolides
One of the most significant differences lies in the antioxidants they contain. Tomatoes are a major dietary source of lycopene, the red pigment that gives them their vibrant color. This potent antioxidant is well-studied for its link to reduced risk of heart disease and certain cancers, particularly prostate cancer. Interestingly, cooking tomatoes, such as in a sauce, makes the lycopene more bioavailable, meaning the body can absorb and use it more effectively.
Conversely, tomatillos contain a different class of antioxidants called withanolides. Research suggests these compounds possess anti-inflammatory, antibacterial, and potential anti-cancer properties. Withanolides have been linked to fighting certain types of cancer cells and may also support the immune system. Tomatillos also offer a notable amount of other flavonoids and antioxidants, including beta-carotene, zeaxanthin, and lutein, which are beneficial for vision and overall cell health.
Other Key Nutritional Differences
Beyond antioxidants, several other nutritional variations exist between the two fruits. A raw tomato generally contains more Vitamin C and potassium than a tomatillo. Vitamin C is essential for immune function and skin health, while potassium helps regulate blood pressure.
On the other hand, tomatillos boast a higher content of certain minerals and B-complex vitamins. This includes more manganese and niacin (Vitamin B3). Niacin is crucial for converting food into energy, while manganese plays a role in metabolism and bone health. Tomatillos are also noted for their high fiber content, which promotes digestive health.
Comparison Table: Tomatillo vs. Tomato
To simplify the comparison, here is a quick overview of how the two stack up nutritionally (values based on raw, chopped, 100g portions):
| Nutrient | Tomatillo | Tomato | Key Benefits | 
|---|---|---|---|
| Antioxidants | Withanolides, Lutein, Zeaxanthin | Lycopene, Beta-Carotene | Cell protection, reduced cancer risk, eye health | 
| Vitamin A (IU) | Lower (approx. 75) | Higher (approx. 750) | Vision, immune function, skin health | 
| Vitamin C (mg) | Lower (approx. 8) | Higher (approx. 11) | Immunity, collagen production | 
| Vitamin K (mcg) | Higher (approx. 3.4) | Comparable (approx. 9.7) | Blood clotting, bone health | 
| Potassium (mg) | Lower (approx. 177) | Higher (approx. 214) | Heart health, blood pressure regulation | 
| Niacin (mg) | Higher (approx. 1.2) | Lower (approx. 0.5) | Energy conversion, metabolism | 
| Dietary Fiber (g) | Higher (approx. 2.6 per cup) | Lower (approx. 1.5 per 100g) | Digestive health, satiety | 
Culinary Uses and Flavor Profiles
Beyond their nutritional content, the culinary applications of tomatillos and tomatoes are quite different due to their distinct flavors and textures. Tomatillos are known for their tart, slightly acidic, and vegetal flavor. They are a staple ingredient in Mexican salsa verde, giving the sauce its signature bright, tangy taste. They can be roasted to mellow their flavor and bring out a hint of sweetness.
Tomatoes, on the other hand, range from sweet and juicy to savory, depending on the variety. Their versatility allows them to be used raw in salads, cooked down into rich sauces, or roasted to concentrate their flavor. Their lower acidity and higher sugar content make them suitable for a wider variety of preparations, from soups to sandwiches.
How to Incorporate Both into Your Diet
Instead of choosing one over the other, a better strategy is to incorporate both tomatillos and tomatoes into a balanced diet to reap the benefits of their diverse nutritional profiles.
- For maximum lycopene, cook tomatoes into a marinara sauce, soup, or stew with a bit of healthy fat like olive oil.
- To benefit from withanolides, create a fresh or roasted tomatillo salsa verde to serve with grilled chicken or fish.
- Boost fiber intake with a hearty Mexican-style stew that uses both diced tomatillos and tomatoes for a complex flavor profile.
- Add variety to salads by including both fresh tomatoes and finely diced raw tomatillos for a tangy kick.
- Make a vibrant gazpacho with both to blend their different flavors and nutritional content.
Conclusion: No Clear Winner, Just Different Strengths
So, are tomatillos healthier than tomatoes? The answer is not a simple yes or no. The truth is that both fruits are incredibly healthy and offer unique advantages. Tomatoes excel in Vitamin A and lycopene, a potent antioxidant for heart and cancer prevention. Tomatillos provide specialized antioxidants called withanolides, more niacin, and higher fiber content, contributing to different areas of health, such as digestive and immune function. The "healthier" option depends entirely on your specific nutritional needs and culinary application. The best approach for maximizing health benefits is to include a variety of both in your diet, taking advantage of their distinct flavors and nutrient compositions. For example, using both in a chili or salsa provides a broader spectrum of vitamins, minerals, and antioxidants.
Learn more about the specific compounds in fruits and vegetables.
FAQs
What is the main difference between the antioxidants in tomatillos and tomatoes?
Tomatoes are rich in lycopene, which is beneficial for heart health and can help protect against certain cancers, particularly when cooked. Tomatillos contain unique antioxidants called withanolides, which have anti-inflammatory, antibacterial, and potential anti-cancer properties.
Are tomatillos low in calories?
Yes, tomatillos are low in calories. One cup of chopped tomatillos contains just 42 calories, making them a nutritious addition to many weight-management diets.
Which fruit is better for vision health?
While both contain antioxidants beneficial for eye health, tomatoes offer significantly more Vitamin A. However, tomatillos contain lutein and zeaxanthin, which protect the eyes from blue light.
Do tomatillos and tomatoes taste the same?
No, they have very different flavor profiles. Tomatillos have a distinctly tart, acidic, and vegetal flavor, while tomatoes can range from sweet to savory depending on the variety.
Can you eat tomatillos raw?
Yes, you can eat raw tomatillos after removing the papery husk. They can be diced and added to salads or used in a fresh salsa.
Is it better to eat tomatoes cooked or raw?
Both cooked and raw tomatoes offer health benefits. While cooking can decrease some heat-sensitive nutrients like Vitamin C, it significantly increases the bioavailability of lycopene, a key antioxidant. A mix of both is ideal.
Which fruit is better for digestive health?
Tomatillos have a higher fiber content than tomatoes, which promotes healthy digestion and regularity. However, both contain fiber that supports gut health.