20 Foods High in Vitamin C: Best Sources for Immunity and Collagen

Vitamin C is one of the most well-known nutrients in human nutrition, yet it remains among the most commonly under-consumed. Your body cannot make it, cannot store meaningful reserves of it, and needs a fresh supply every single day. As a water-soluble antioxidant, vitamin C protects cells from oxidative damage caused by free radicals, drives collagen synthesis for healthy skin, tendons, and blood vessels, strengthens immune responses, and dramatically enhances the absorption of non-heme iron from plant foods. The National Institutes of Health identifies vitamin C as essential for wound healing, bone formation, and the normal function of immune cells, with deficiency leading to scurvy, a potentially fatal condition characterized by bleeding gums, joint pain, and impaired wound healing.

The recommended dietary allowance for vitamin C is 90 mg per day for adult men and 75 mg per day for adult women, rising to 85 mg during pregnancy and 120 mg while breastfeeding. Smokers require an additional 35 mg per day due to increased oxidative stress from cigarette smoke. Despite the relatively modest daily target, surveys consistently show that a significant portion of the population falls short, particularly people who eat few fruits and vegetables. Harvard T.H. Chan School of Public Health notes that vitamin C from food is preferred over supplements because food sources deliver it alongside fiber, flavonoids, and complementary antioxidants that enhance its biological impact in ways isolated ascorbic acid cannot replicate.

Vitamin C is heat-sensitive and water-soluble, meaning cooking, especially boiling, reduces its content significantly. Raw or lightly steamed preparations preserve vitamin C best. The 20 foods below are the richest dietary sources, spanning tropical fruits, citrus, berries, cruciferous vegetables, and more.

Jump to: Red Bell Pepper | Guava | Kiwi | Orange | Strawberries | Broccoli | Papaya | Brussels Sprouts | Pineapple | Mango | Cauliflower | Kale (Raw) | Lychee | Grapefruit | Snow Peas | Tomatoes | Blackcurrants | Cantaloupe | Lemon Juice | Sweet Potato | FAQ

20 Foods With the Highest Vitamin C Content

1. Red Bell Pepper: The Highest Vitamin C Vegetable

One cup of raw red bell pepper provides approximately 190 mg of vitamin C, more than double the daily requirement in a single serving and more vitamin C than an orange. Red bell peppers are fully ripened green peppers and contain significantly more vitamin C than yellow or green varieties because vitamin C accumulates as the pepper ripens. They are also rich in beta-carotene, vitamin B6, and folate.

The Mayo Clinic identifies bell peppers and citrus fruits as among the richest dietary sources of vitamin C; red peppers in particular are an exceptional everyday source that integrates naturally into salads, stir-fries, and snack plates without any preparation beyond slicing.

Best eaten: Raw for maximum vitamin C; sliced into strips for dipping, chopped into salads, or added to grain bowls. Light sautéing preserves most of the vitamin C, but boiling significantly reduces it.

Per 1 cup raw, chopped.

2. Guava: A Tropical Fruit With Extraordinary Vitamin C

One cup of raw guava provides approximately 377 mg of vitamin C, more than four times the daily requirement in a single serving. Guava is the most vitamin C-dense commonly available tropical fruit, surpassing oranges, kiwi, and most other fruits by a significant margin. It also provides lycopene, folate, potassium, and fiber.

Research published in Nutrients highlights vitamin C’s role as a primary water-soluble antioxidant in plasma; guava’s extraordinary concentration makes even a small portion a highly effective contribution to antioxidant defense and immune support.

Best eaten: Fresh and raw, sliced into fruit salads, blended into smoothies, or eaten as a snack; the skin contains high vitamin C concentration and should be eaten rather than peeled.

Per 1 cup raw.

3. Kiwi: A Small Fruit With Outstanding Vitamin C Density

One medium kiwi provides approximately 71 mg of vitamin C, nearly the full daily requirement for women in a single small fruit. Two kiwis deliver well over the daily requirement for either sex. Kiwi also provides vitamin K, potassium, fiber, and actinidin, a unique enzyme that supports protein digestion.

Kiwi is one of the most vitamin C-dense fruits per gram, and its combination of vitamin C with other antioxidants and fiber makes it a nutritionally complete fruit choice rather than simply a high-C option.

Best eaten: Halved and scooped with a spoon, sliced into fruit salads, or blended into smoothies; the skin is edible and contains additional fiber and vitamin C, though its fuzzy texture is not to everyone’s preference.

Per 1 medium kiwi (69 g).

4. Orange: The Classic Vitamin C Fruit

One medium orange provides approximately 70 mg of vitamin C, close to the full daily requirement for adult women, alongside flavonoids, folate, potassium, and fiber. Oranges are the most widely consumed vitamin C food in the world and the food most synonymous with the nutrient in public awareness, though many other foods contain as much or more per serving.

The hesperidin and other flavonoids in whole oranges work synergistically with vitamin C, enhancing its antioxidant activity and supporting cardiovascular health through pathways that isolated ascorbic acid in supplement form does not replicate.

Best eaten: Fresh and whole for maximum fiber and flavonoid benefit; orange juice provides comparable vitamin C but removes most fiber and concentrates sugar, making whole fruit the nutritionally superior choice.

Per 1 medium orange (131 g).

5. Strawberries: A Berry Rich in Vitamin C and Antioxidants

One cup of fresh strawberries provides approximately 89 mg of vitamin C, exceeding the daily requirement for adult women and nearly meeting it for men in a single serving. Strawberries are also one of the richest sources of anthocyanins, the red pigment flavonoids associated with reduced cardiovascular disease risk and improved cognitive function.

other anthocyanin-rich foods offer the same cardiovascular and cognitive benefits alongside berries, and the American Heart Association includes berries among the most beneficial fruits for heart health; strawberries’ combination of vitamin C and anthocyanins supports both antioxidant defense and vascular function through complementary mechanisms.

Best eaten: Fresh in fruit salads, on yogurt and oatmeal, or blended into smoothies; frozen strawberries retain most of their vitamin C and are a practical year-round alternative when fresh are out of season.

Per 1 cup fresh.

6. Broccoli: The Most Vitamin C-Dense Cruciferous Vegetable

One cup of raw broccoli provides approximately 81 mg of vitamin C, nearly the full daily requirement, alongside sulforaphane, vitamin K, folate, and fiber. Cooked broccoli retains approximately 50 to 65 percent of its raw vitamin C content when lightly steamed; boiling causes the most significant losses as vitamin C leaches into the cooking water.

Broccoli is among the top vegetable sources of vitamin C, and consuming five varied servings of fruits and vegetables daily, including cruciferous vegetables like broccoli, can provide more than 200 mg of vitamin C without any supplementation.

Best eaten: Raw in salads or as a dipping vegetable, lightly steamed, or roasted at high heat which preserves more vitamin C than boiling; add lemon juice after cooking for a vitamin C boost alongside a bright flavor.

Per 1 cup raw chopped.

7. Papaya: A Tropical Fruit With Strong Vitamin C Content

One cup of fresh papaya provides approximately 88 mg of vitamin C alongside papain, a digestive enzyme that breaks down proteins, plus beta-carotene, folate, and potassium. Papaya is one of the most vitamin C-rich tropical fruits after guava and offers the additional digestive benefit of its unique enzyme content.

Papaya’s beta-carotene content complements its vitamin C by providing a second antioxidant pathway through fat-soluble carotenoids, making it a fruit that supports both water-soluble and fat-soluble antioxidant defenses simultaneously in a single serving.

Best eaten: Fresh and raw, cubed into fruit salads, blended into smoothies, or served with lime juice and a pinch of chili powder as a traditional preparation that enhances both flavor and iron absorption.

Per 1 cup raw cubed.

8. Brussels Sprouts: A Cruciferous Vegetable Packed With Vitamin C

One cup of cooked Brussels sprouts provides approximately 97 mg of vitamin C even after cooking, exceeding the daily requirement for adult men in a single serving. Brussels sprouts are among the few vegetables that retain strong vitamin C levels through cooking, making them reliable even when lightly boiled or roasted. They also provide vitamin K, folate, fiber, and glucosinolates with anti-inflammatory properties.

Harvard Health Publishing highlights cruciferous vegetables including Brussels sprouts as nutritionally exceptional, with their combination of vitamin C, fiber, and bioactive compounds supporting immune function, gut health, and cancer risk reduction across multiple pathways.

Best eaten: Roasted at high heat with olive oil until caramelized, or halved and pan-seared; roasting preserves more vitamin C than boiling and significantly improves flavor by developing natural sweetness.

Per 1 cup cooked.

9. Pineapple: A Tropical Fruit With Solid Vitamin C and Bromelain

One cup of fresh pineapple chunks provides approximately 79 mg of vitamin C alongside bromelain, a proteolytic enzyme with anti-inflammatory properties that may support joint health and post-exercise recovery. Pineapple is also a good source of manganese, which supports bone formation and antioxidant enzyme activity.

Bromelain in fresh pineapple is denatured by heat, so canned pineapple in juice retains the vitamin C but loses most of the enzyme benefit. Fresh pineapple is the better option for capturing both vitamin C and bromelain simultaneously.

Best eaten: Fresh in fruit salads, blended into smoothies, or grilled briefly where the natural sugars caramelize without destroying meaningful amounts of vitamin C.

Per 1 cup fresh chunks.

10. Mango: A Vitamin C-Rich Tropical Staple

One cup of fresh mango slices provides approximately 60 mg of vitamin C alongside beta-carotene, folate, vitamin B6, and fiber. Mango is one of the most widely consumed tropical fruits globally and a practical everyday vitamin C contributor in warmer climates where it is eaten daily as a staple fruit.

Mango’s beta-carotene content is converted to vitamin A in the body, giving it a dual antioxidant benefit alongside its direct vitamin C contribution. The combination supports both immune function and skin health through complementary fat-soluble and water-soluble antioxidant pathways.

Best eaten: Fresh and raw, sliced into salads, blended into smoothies or lassis, or cubed and frozen for use in year-round smoothies; ripe mango has the highest vitamin C concentration.

Per 1 cup sliced.

11. Cauliflower: A Mild Cruciferous Vegetable With Strong Vitamin C

One cup of raw cauliflower provides approximately 52 mg of vitamin C alongside fiber, choline, and glucosinolates. Cauliflower’s mild flavor and versatile texture make it one of the easiest cruciferous vegetables to incorporate into a wide variety of dishes, and its vitamin C content makes it nutritionally valuable beyond its role as a low-carbohydrate rice or mash substitute.

Raw cauliflower retains more vitamin C than cooked; however, lightly roasted cauliflower preserves the majority of its vitamin C while developing a significantly more appealing flavor through caramelization, making it more likely to be eaten consistently.

Best eaten: Raw florets for dipping, roasted with olive oil and spices, or riced and used as a grain substitute in bowls and stir-fries.

Per 1 cup raw chopped.

12. Kale (Raw): A Leafy Green With High Vitamin C

One cup of raw kale provides approximately 80 mg of vitamin C alongside vitamin K, calcium, beta-carotene, and lutein. Raw kale retains its full vitamin C content, while cooked kale retains around 40 to 50 percent. As a salad green or smoothie ingredient, raw kale is one of the most vitamin C-dense leafy greens available.

Kale’s combination of vitamin C and vitamin K is particularly relevant for bone health: vitamin C supports collagen synthesis in bone matrix while vitamin K directs calcium into bones rather than soft tissues, creating a dual bone-supportive effect from a single food.

Best eaten: Massaged raw into salads with citrus-based dressings that enhance both palatability and iron absorption, blended into green smoothies, or lightly sautéed where some vitamin C loss is acceptable for improved texture.

Per 1 cup raw chopped.

13. Lychee: A Lesser-Known Vitamin C Powerhouse

One cup of fresh lychees provides approximately 136 mg of vitamin C, well over the daily requirement for either sex, along with copper, potassium, and oligonol, a polyphenol with antioxidant properties. Lychee is less commonly consumed in North America but is widely available fresh and canned and deserves recognition as one of the richest fruit sources of vitamin C available.

Fresh lychees provide significantly more vitamin C than canned varieties, which lose some ascorbic acid during heat processing. When fresh lychees are in season, they represent one of the most vitamin C-efficient fruits available by weight.

Best eaten: Fresh, peeled and pitted as a snack or in fruit salads; add to smoothies or pair with mint and lime for a refreshing vitamin C-rich dessert.

Per 1 cup fresh.

14. Grapefruit: A Citrus Fruit With Strong Vitamin C and Unique Compounds

Half a medium grapefruit provides approximately 44 mg of vitamin C alongside naringenin, a flavonoid with anti-inflammatory and cholesterol-lowering properties, plus fiber, potassium, and lycopene in pink and red varieties. A full grapefruit delivers nearly the complete daily vitamin C requirement for adult women.

Citrus fruits including grapefruit are widely recognized as beneficial for cardiovascular health; its naringenin content gives grapefruit unique properties beyond its shared vitamin C content with other citrus fruits. Note that grapefruit interacts with numerous medications through CYP3A4 enzyme inhibition; consult a healthcare provider if you take prescription drugs.

Best eaten: Halved and eaten with a spoon, segmented into salads, or juiced fresh; pink and red varieties provide lycopene alongside vitamin C for additional antioxidant benefit.

Per ½ medium grapefruit.

15. Snow Peas: A Crunchy Vitamin C Vegetable

One cup of raw snow peas provides approximately 60 mg of vitamin C alongside fiber, vitamin K, and plant protein. Snow peas are one of the more vitamin C-dense vegetables that can be eaten raw as a snack, making them a practical everyday contributor for people who prefer crunchy snacking vegetables over fruit-based vitamin C sources.

Lightly stir-frying snow peas for one to two minutes preserves most of their vitamin C while making them more digestible, and their mild sweetness integrates naturally into Asian-inspired dishes that already contain other vitamin C-rich vegetables.

Best eaten: Raw as a snack or dipped in hummus, lightly stir-fried in sesame oil, or added to noodle dishes and grain bowls; eat as fresh as possible as vitamin C degrades during extended refrigerator storage.

Per 1 cup raw.

16. Tomatoes: A Everyday Vitamin C Contributor

One medium raw tomato provides approximately 17 mg of vitamin C, and one cup of tomato juice provides around 45 mg. While tomatoes are not among the highest single-serving vitamin C foods, their near-daily presence in the diet of most people makes them one of the most consistent background vitamin C contributors in practice.

Cooking tomatoes increases their lycopene bioavailability while reducing some vitamin C; however, the combination of cooked tomato products eaten frequently across a week still contributes meaningfully to total vitamin C intake alongside their well-documented lycopene and antioxidant benefits.

Best eaten: Raw in salads and sandwiches for maximum vitamin C, or cooked in sauces where reduced vitamin C is offset by dramatically increased lycopene bioavailability.

Per 1 medium raw tomato.

17. Blackcurrants: A Berry With Exceptional Vitamin C Concentration

One cup of fresh blackcurrants provides approximately 203 mg of vitamin C, more than double the daily requirement in a single serving. Blackcurrants are among the most vitamin C-dense berries available, though they are less commonly consumed in North America than in Europe where they are widely used in juices, jams, and desserts.

Blackcurrants also contain anthocyanins, flavonols, and proanthocyanidins that work alongside vitamin C as antioxidants, making them one of the most antioxidant-rich small fruits available by weight. Fresh or frozen blackcurrants are both effective vitamin C sources.

Best eaten: Fresh or frozen in smoothies, stirred into yogurt, cooked into sauces for poultry and game, or used in fruit crumbles where some vitamin C is lost but flavor is maximized.

Per 1 cup fresh.

18. Cantaloupe: A Mild Melon With Solid Vitamin C

One cup of fresh cantaloupe provides approximately 57 mg of vitamin C alongside beta-carotene, potassium, folate, and vitamin B6. Cantaloupe is one of the sweetest and most widely available summer melons and a practical vitamin C source for people who prefer milder fruit flavors over citrus or tropical options.

Its beta-carotene content gives cantaloupe a dual antioxidant profile combining water-soluble vitamin C with fat-soluble vitamin A precursors, supporting both immune function and skin health simultaneously in a low-calorie, hydrating fruit.

Best eaten: Fresh and raw, cubed into fruit salads, blended into chilled soups, or served with prosciutto for a classic sweet-savory combination.

Per 1 cup cubed.

19. Lemon Juice: A Concentrated Vitamin C Condiment

One ounce (about 2 tablespoons) of fresh lemon juice provides approximately 14 mg of vitamin C. While a small amount per serving, lemon juice is used daily across a wide range of dishes and beverages, contributing a consistent background vitamin C supply. Squeezed over iron-rich plant foods, lemon juice simultaneously adds flavor and meaningfully improves non-heme iron absorption.

The practical value of lemon juice as a vitamin C source lies in its frequency of use rather than the magnitude of any single serving. Adding it to water, dressings, fish dishes, and grain bowls throughout the day accumulates a genuine vitamin C contribution across meals.

Best eaten: Squeezed fresh over salads, fish, grain bowls, and lentil dishes; added to water for a hydrating vitamin C contribution; used in dressings and marinades where its acidity also tenderizes proteins.

Per 1 oz (2 tbsp) fresh squeezed.

20. Sweet Potato: A Root Vegetable With Meaningful Vitamin C

One medium baked sweet potato provides approximately 22 mg of vitamin C alongside beta-carotene, potassium, fiber, and vitamin B6. While sweet potato is not a high-vitamin C food in the same tier as peppers or citrus, its year-round availability, affordability, and nutritional density across multiple vitamins and minerals make it a valuable everyday contributor to total vitamin C intake.

Sweet potato’s beta-carotene and vitamin C together support immune function through both fat-soluble and water-soluble antioxidant pathways, making it a complementary addition to higher-vitamin C fruits and vegetables in a balanced daily diet.

Best eaten: Baked whole with skin on, mashed with a small amount of butter to improve beta-carotene absorption, or cubed and roasted as a base for grain bowls.

Per 1 medium baked sweet potato (114 g).

Summary: Top 20 Vitamin C Foods at a Glance

Tips for Getting the Most Vitamin C From Food

Eat vitamin C foods raw whenever possible. Vitamin C is one of the most heat-sensitive nutrients in food. Raw red peppers contain nearly twice the vitamin C of cooked ones. Raw kale, fresh strawberries, and uncooked guava all preserve their full vitamin C content. When cooking is preferred, lightly steaming or roasting at high heat for short periods causes far less loss than boiling.

Never boil vitamin C-rich vegetables. Boiling causes vitamin C to leach into the cooking water, which is then discarded. If you do boil vegetables, consider using the cooking water in soups or sauces to recover some of the lost ascorbic acid.

Use vitamin C strategically to boost iron absorption. Adding lemon juice to lentil soup, eating strawberries alongside oatmeal, or drinking orange juice with a fortified cereal can increase absorption of non-heme iron from iron-rich foods by up to fourfold. This pairing strategy is one of the most practical and evidence-based nutritional habits for plant-based eaters managing iron status.

Choose fresh over canned or packaged. Vitamin C degrades during storage, heat processing, and exposure to oxygen. Fresh and frozen fruits and vegetables retain significantly more vitamin C than canned equivalents that have been heat-processed. Frozen produce, picked and frozen at peak ripeness, often retains more vitamin C than fresh produce that has spent days in transit and refrigeration.

Spread intake across meals. Because vitamin C is water-soluble and excreted daily in urine, large single doses are less effective than smaller amounts consumed consistently throughout the day. Including a vitamin C-rich fruit or vegetable at breakfast, lunch, and dinner is more beneficial than a single large dose at one meal.

Store produce correctly to preserve vitamin C. Keep citrus fruits at room temperature for short-term use or refrigerate for longer storage. Store cut fruits and vegetables in airtight containers and use within two to three days, as vitamin C degrades with exposure to air and light.

Frequently Asked Questions

What food has the highest amount of vitamin C?
Among common grocery-store foods, red bell pepper has the highest vitamin C content per serving, at roughly 190 mg per cup—more than double the daily requirement. Exotic fruits like acerola cherries and Kakadu plums contain far more per gram, but they’re rarely available outside specialty retailers.

Is vitamin C from food better than from a supplement?
Food sources deliver vitamin C alongside fiber, flavonoids, and other antioxidants that work together in ways an isolated supplement can’t replicate, and it’s very difficult to overconsume vitamin C from food alone since excess amounts are simply excreted.

What foods work well with vitamin C for immune support?
Vitamin C and zinc work through complementary pathways to support immune function, so pairing vitamin C-rich produce with foods high in zinc like pumpkin seeds, oysters, or lean beef can round out an immune-supportive diet.

Can you get too much vitamin C from food?
It’s very unlikely. Vitamin C is water-soluble, so the body excretes what it doesn’t need. Excess intake from food alone essentially never reaches the levels that cause gastrointestinal upset, which is more commonly linked to high-dose supplements.

Does cooking destroy vitamin C?
Yes, to varying degrees. Vitamin C is heat-sensitive and water-soluble, so boiling causes the greatest losses as it leaches into the cooking water. Light steaming, roasting, or eating produce raw preserves significantly more of the original content.

The Bottom Line

Vitamin C is one of the easiest nutrient requirements to meet through diet, provided fruits and vegetables are eaten consistently across the day. Red bell peppers, guava, blackcurrants, and lychee deliver extraordinary concentrations in small servings, while oranges, strawberries, broccoli, kale, and Brussels sprouts are the most practical everyday sources for most people. The key is variety and freshness: rotating between different vitamin C-rich fruits and vegetables ensures a steady supply of ascorbic acid alongside the complementary flavonoids, carotenoids, and fiber that make food-based vitamin C superior to supplementation. (Exotic sources like camu camu, acerola cherries, and rose hips contain even higher concentrations gram for gram, but this list focuses on foods realistically available in a typical grocery store.) Five varied servings of fruits and vegetables daily, eaten as fresh and raw as practical, will consistently exceed the daily requirement without any need for counting.

Nutrition data sourced from the USDA FoodData Central database. Individual values may vary based on food ripeness, preparation method, storage duration, and growing conditions. This article is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before taking high-dose vitamin C supplements, as doses above 2,000 mg per day can cause gastrointestinal distress and kidney stones in susceptible individuals. Note that grapefruit interacts with many medications; speak with your pharmacist or physician if you take prescription drugs.

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