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Tomatoes pop up everywhere. You slice them for salads, simmer them in sauces, or snack on cherry varieties straight from the garden. But do you know what’s really inside these juicy red gems?
Tomato nutrition facts reveal a low-calorie powerhouse. A medium raw tomato packs just 22 calories, with about 18 per 100 grams. You’ll get mostly water, a bit of carbs at 3.9 grams, under 1 gram of protein, and almost no fat.
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We cover the essentials here. Expect details on key vitamins like C and K, minerals such as potassium, and standout antioxidants including lycopene. Plus, see how cooking boosts lycopene availability while concentrating nutrients, and check simple serving ideas.
Numbers vary by size and variety, like Roma or cherry tomatoes. However, the big picture stays consistent: tomatoes deliver big nutrition in a small, versatile package. Stick around to learn more.
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Tomato nutrition facts at a glance (raw tomato basics)
Raw tomatoes pack straightforward nutrition that fits any meal. These fruits stay mostly water at 95%, which keeps calories low and helps you feel full. Tomato nutrition facts show small amounts per serving, yet they add real value.
Per 100 grams, expect around 15 calories. A medium tomato weighs about 123 grams and totals 18 calories. Numbers come from USDA data, so they stay reliable.
A sliced raw tomato highlights its juicy, nutrient-rich inside. Created with AI.
Calories, carbs, fiber, protein, and fat in tomatoes
Tomatoes make a light snack or side because calories stay so low. Per 100 grams, you get 15 calories; one medium tomato hits 18 calories. That means you eat more volume without extra energy.
Carbs total 3.2 grams per 100 grams or 3.9 grams in a medium one. Most come from natural sugars at 2.6 grams per medium tomato. These sugars differ from added ones in candy; your body handles them better with the fiber and water.
Fiber reaches 1 gram per 100 grams, or 1.2 grams medium-sized. It slows digestion, so you stay satisfied longer. Protein sits at 0.7 grams per 100 grams (0.9 grams medium), and fat just 0.2 grams either way.
In short, tomatoes bulk up salads or sandwiches. They provide structure without weighing down your plate.
Vitamins and minerals tomatoes are known for
Tomatoes deliver key vitamins and minerals in easy amounts. A medium one gives solid daily boosts, although ripeness and variety affect exact levels.
Vitamin C totals 17 mg in a medium tomato, or about 18% of your daily needs. It supports your immune system by aiding white blood cells.
Vitamin K provides 9.7 mcg medium-sized, around 8% daily value. This nutrient helps blood clot properly to avoid excess bleeding.
Folate offers 18 mcg per medium tomato, or 5% daily. It promotes cell growth and repair, especially for new tissues.
Potassium clocks in at 292 mg for a medium one, about 6% daily value. It keeps heart rhythm steady and muscles working smooth.
Besides, these add up over time. Eat a few tomatoes daily, and you cover gaps without pills.
What the label does not show well, antioxidants like lycopene
Nutrition labels skip standout players like antioxidants. Lycopene gives tomatoes their red color and fights cell damage as an antioxidant.
Studies from 2023 to 2026 link higher lycopene intake to better heart health. For example, 5 to 30 mg daily (one or two tomatoes) may lower blood pressure by 2 to 3 mmHg. Some research shows ties to lower cancer risks, like prostate or lung, but results vary by person.
A medium tomato supplies 3.2 mg lycopene; per 100 grams, it’s 2.6 mg. Content rises as tomatoes ripen fully or shift to certain types.
Raw forms work fine, yet absorption jumps when you cook them. Add fat like olive oil, and your body takes in more. We cover those tips next.
The standout nutrients in tomatoes and what they do in your body
Tomato nutrition facts highlight a few stars that go beyond basic calories and carbs. Vitamin C, potassium, and lycopene stand out for their roles in daily health. These nutrients work together in simple ways. For example, a medium tomato gives you 17 mg of vitamin C, 292 mg of potassium, and about 3 mg of lycopene. Research often shows links between them and better outcomes. Yet results depend on your full diet and habits. Let’s break down what each does.
Vitamin C for immune support and healthy skin
Vitamin C powers your immune system first. It helps white blood cells fight germs and invaders. In addition, this nutrient builds collagen, the protein that keeps skin firm and wounds healing fast.
Your body can’t store much vitamin C, so you need it daily from food. Tomatoes provide 14 mg per 100 grams. That’s 16% of what most adults require each day.
Collagen also supports tissues like gums and blood vessels. Without enough, skin loses bounce over time. Besides, vitamin C boosts iron uptake from plants. Pair tomatoes with spinach in a salad, or toss them into a bean dish. Iron absorbs better that way, so you get more energy from meals.
Studies link steady vitamin C intake to fewer colds. Associations hold strong, although your lifestyle matters most.
Potassium for blood pressure and muscle function
Potassium keeps sodium in check. Too much sodium raises blood pressure, but potassium relaxes blood vessels. As a result, your heart pumps easier.
It also steadies heart rhythm. Muscles contract smooth with the right balance, so you avoid cramps during workouts. A medium tomato delivers 292 mg, or 6% of daily needs. Per 100 grams, that’s 237 mg.
Fresh tomatoes stay low in sodium naturally. However, canned sauces or juices often pack added salt. Always check labels before buying. Choose no-salt-added versions when you can.
In short, add fresh tomatoes to meals for that potassium boost. Research ties higher intake to lower blood pressure readings. Population studies confirm the connection, yet pair it with less processed food for best results.
A bean salad with tomatoes and spinach shows a smart way to pair nutrients for better iron absorption. Created with AI.
Lycopene and other plant compounds for cell protection
Antioxidants like lycopene act as shields for your cells. They block damage from free radicals, those unstable bits that build up from stress or pollution. Tomatoes lead as a top source in many diets.
Lycopene content hits 2.6 mg per 100 grams in ripe reds. A medium one offers 3 mg or more. Cooking breaks down cell walls, so your body absorbs it better with a bit of fat.
Other compounds join in, like steroidal alkaloids noted in recent USDA work. They team up for protection. Studies from 2024 link tomato intake to heart health perks, such as less artery plaque. Prostate health shows promise too, with slower tumor growth in animals. However, human results point to associations only, not guarantees.
Eat whole tomatoes often. Five to six servings weekly fit USDA red veggie goals. Your overall plate decides the real impact, so mix in variety.
Raw vs cooked tomatoes: which one is healthier?
Tomato nutrition facts change a bit based on how you prepare them. Raw tomatoes keep more vitamin C, since heat breaks it down. Cooked ones shine for lycopene, because processing makes it easier for your body to grab. So, which wins? Both fit well, depending on your goals. For example, enjoy raw in summer salads for that fresh C boost. Switch to cooked sauces in winter for better lycopene uptake.

In short, mix them up. You get the best from each without picking sides.
Why cooking can boost lycopene you actually absorb
Heat from cooking breaks down tough cell walls in tomatoes. This releases lycopene, so your body accesses it better. Raw tomatoes trap lycopene inside those walls. As a result, you absorb less from fresh slices.
Cooking also shifts lycopene’s shape. It turns into forms your gut handles with ease. Some studies note up to 54 to 171% more absorption from cooked over raw. For instance, sauces or purees outperform salads here.
Vitamin C drops with longer cooking, however. Keep cooks short, around 10 to 20 minutes. Steaming or light simmering works best. That way, you hold onto other perks while gaining lycopene gains.
Why adding a little fat helps (olive oil, avocado, cheese)
Lycopene dissolves in fat, not water. Your body needs that fat to pull it from food into your blood. Without it, much passes through unused. A small amount changes everything.
One study found an 82% increase when you cook tomatoes with olive oil. Fats from plants or dairy do the job too. Cheese melts nicely on top, or avocado adds creaminess.
The best choice is often both: mix raw and cooked in a week
No rule says eat only raw or cooked tomatoes daily. Studies link regular intake to perks, like heart health from lycopene. Aim for variety instead.
Try this simple weekly plan:
- Raw on Monday, Wednesday, Friday: Slice for salads or sandwiches. You lock in vitamin C and fiber.
- Cooked on Tuesday, Thursday, Saturday: Make sauces or soups. Lycopene absorbs best here.
- Sunday off or mix: Blend both in a stir-fry.
Some research shows benefits from 2 to 3 cups of tomato sauce per week. It fits without effort. Besides, your body uses nutrients better from whole foods over time.
Track how you feel after a month. Energy up? Skin clearer? Adjust based on that. In the end, tomatoes work because they’re easy to love raw or hot.
Do different tomato types and colors change the nutrition?
Tomato nutrition facts stay pretty steady across types. You get similar calories, carbs, fiber, and potassium no matter if you pick cherry or beefsteak. However, antioxidants like lycopene shift with variety, color, and ripeness. Those small differences add up over time. For example, dark heirlooms often pack more punch. So, grab what fits your budget and taste, then mix them for the win.
Cherry, Roma, beefsteak, and heirloom: what really changes
Cherry tomatoes shine small and sweet. People love them for snacks or salads because they burst with juice. Roma types stay meaty and low-water, perfect for sauces. Beefsteak grow big for slicing on burgers. Heirlooms bring wild colors and flavors, often with notes of smoke or fruit.
Size and use change how you eat them, yet basics like vitamin C and fiber hold steady. A handful of cherries matches one beefsteak for potassium around 300 mg. Heirlooms get buzz for higher antioxidants in dark ones, but any type delivers plant compounds. In addition, they all keep calories under 25 per serving.
You notice flavor most. Romas cook down thick without extra seeds. Beefsteak soak up dressings well. Cherries add pops of color to plates. Heirlooms cost more sometimes, so start with farmers markets for deals. Above all, pick based on your meals. They boost nutrition without breaking the bank.
Does color matter for lycopene and other antioxidants?
Red tomatoes lead with lycopene at about 3 mg per medium one. That color signals strong cell protection. Yellow and orange drop low on lycopene, yet they offer high vitamin C and potassium. Green varieties match reds for those basics, but skip most lycopene. Purple, black, and brown pack extras like more vitamin A alongside lycopene.
Darker shades win for overall antioxidants. Recent data confirms purple types top charts for multiple perks. However, fiber stays even at 1 to 2 grams across the board. So, reds fight heart risks best. Yellows suit sensitive stomachs with less acid.
Buy what shows up at your store. Rotate colors weekly for variety. In short, no color fails; they just specialize.
Ripeness and storage: small choices that can affect nutrients
Vine-ripened tomatoes build more antioxidants on the plant. They soak sun fully, so lycopene peaks. Early-picked ones ripen off-vine fine, but levels lag a bit. Fully ripe always tastes better too.
Store smart to hold nutrients. Keep counter-fresh ones at room temperature. They soften and flavor up. Refrigerate only cut or super-ripe to slow mold. Then, warm them before eating. That step revives taste without losing much vitamin C.
Simple habits matter. Check for deep color and give. Your tomatoes stay nutrient-packed longer that way.
Smart ways to eat more tomatoes without extra sugar or salt
You want the full perks from tomato nutrition facts, like lycopene and vitamins, but skip extra sugar or salt. Fresh or processed tomatoes fit right in. Just focus on simple preps and smart picks. These steps let you eat more without hidden add-ins. However, some folks watch tomatoes for reflux, allergies, or kidney issues with potassium. Check with your doctor if that applies. Otherwise, ramp up intake easy.

Easy serving ideas for every meal
Boost tomatoes daily with these quick swaps. They keep flavors bright and nutrients high. Each takes under 15 minutes.
- Sauté tomato slices with eggs for breakfast scramble.
- Toss diced tomatoes in Greek salad with cucumber and feta.
- Mix fresh tomato chunks with tuna for lunch salad.
- Blend cherry tomatoes into sheet-pan roasted veggies.
- Top tacos with homemade pico de gallo of chopped tomatoes, onion, and lime.
- Stir crushed tomatoes into chili for dinner heartiness.
- Puree ripe tomatoes for creamy soup, no cream needed.
- Pile bruschetta with chopped tomatoes, basil, and a touch of olive oil.
- Snack on tomato and cucumber spears with herb dip.
- Dice tomatoes into homemade pasta sauce simmered short.
- Add tomato wedges to avocado toast for a salty-free bite.
- Layer sliced tomatoes in wraps with greens and cheese.
These ideas spread tomatoes across meals. You hit variety without boredom.
Choosing canned tomatoes, sauce, and paste (label tips)
Processed tomato products pack more usable lycopene than fresh ones. Heat breaks cell walls during canning, so your body absorbs up to twice as much. Studies confirm one cup cooked hits 7,300 micrograms versus 4,600 raw. Paste concentrates it highest. However, sodium and sugar sneak in often.
Pick wisely every time. Scan for no added salt or under 140 mg per serving. Choose no sugar added; natural sugars stay low at 4 grams per cup. Simple lists work best: tomatoes, water, maybe citric acid. Rinse canned ones to cut salt 40%. BPA-free cans add a bonus, but skip if not listed.
In short, these swaps keep tomato nutrition facts strong. You get heart health perks without extras.
Common tomato nutrition myths to stop believing
Myths confuse tomato benefits all the time. Let’s clear them up quick. You deserve facts for smart eating.
First, raw tomatoes do not beat cooked for lycopene. Heat frees it from cells, so canned or sauced versions absorb better. Fresh wins vitamin C, but mix both.
Next, lycopene pills fall short of whole tomatoes. Food adds fiber and vitamins for real results. Studies link whole intake to lower heart risks, not isolates.
Also, tomatoes stay low-sugar overall. One medium holds 4 grams natural sugar, less than an apple. They suit blood sugar control fine.
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Conclusion
Tomato nutrition facts boil down to a simple win. You get low calories around 18 per medium fruit, helpful fiber for fullness, vitamin C for immunity, potassium for blood pressure control, and standout lycopene for cell protection. These nutrients team up in fresh or cooked forms. For example, raw tomatoes keep vitamin C intact, while cooking with a touch of olive oil boosts lycopene absorption by up to 80%.
Mix raw salads and cooked sauces each week. Try different colors too, like purple heirlooms for extra antioxidants or yellow ones for gentler acid. When you grab canned sauce or paste, pick lower-sodium options to skip extras.
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