Vitamin C is found in a wide range of fruits, vegetables, and even some animal foods. The richest everyday sources are red bell peppers, oranges, kiwifruit, and broccoli. Most adults need about 75 to 90 mg per day, and a single half-cup of raw red pepper (95 mg) covers that entirely on its own.
Fruits With the Most Vitamin C
Oranges get all the credit, but they’re not even the top fruit source. Here’s how common fruits stack up per serving, based on data from the National Institutes of Health:
- Orange juice, ¾ cup: 93 mg (103% of the daily value)
- Orange, 1 medium: 70 mg
- Kiwifruit, 1 medium: 64 mg
- Strawberries, ½ cup sliced: 49 mg
- Grapefruit, ½ medium: 39 mg
- Cantaloupe, ½ cup: 29 mg
Kiwifruit is one of the most underrated options. A single medium kiwi delivers 71% of your daily needs and is easy to eat without any prep. Strawberries are another strong pick, especially in summer when they’re in season and at their ripest.
Vegetables That Pack a Punch
Several vegetables rival or beat fruits for vitamin C content. Raw red bell pepper leads the pack at 95 mg per half-cup, making it the single richest common food source per serving. Green bell peppers aren’t far behind at 60 mg for the same amount.
- Red bell pepper, raw, ½ cup: 95 mg (106% DV)
- Green bell pepper, raw, ½ cup: 60 mg
- Broccoli, cooked, ½ cup: 51 mg
- Brussels sprouts, cooked, ½ cup: 48 mg
- Cabbage, cooked, ½ cup: 28 mg
- Cauliflower, raw, ½ cup: 26 mg
Even foods you wouldn’t associate with vitamin C contribute meaningful amounts. A baked potato has 17 mg, and a medium raw tomato has the same. Tomato juice offers 33 mg per three-quarter cup. If you eat a varied diet with several servings of fruits and vegetables a day, you’re almost certainly meeting your needs without thinking about it.
Surprising Sources You Might Not Expect
Potatoes, cooked spinach (9 mg per half-cup), and green peas (8 mg per half-cup) all contain small but real amounts of vitamin C. These add up over the course of a day, especially if peppers and citrus aren’t regulars in your diet.
Fresh herbs contribute too, though in small doses. Fresh thyme contains about 1.3 mg per teaspoon. That’s modest, but if you use handfuls of fresh herbs in salads or cooking, it’s a genuine contribution.
On the exotic end of the spectrum, two fruits contain vastly more vitamin C than anything in a typical grocery store. Kakadu plum, native to Australia, holds about 3,100 mg per 100 grams. Camu camu, a South American berry, contains roughly 2,800 mg per 100 grams. For comparison, oranges have about 54 mg per 100 grams. You’ll typically find these as powders or supplements rather than fresh fruit.
Animal Foods and Vitamin C
Vitamin C is the only essential vitamin not found in useful amounts in cooked animal foods. Cooking destroys it. However, raw liver, fish roe, and raw eggs do contain some vitamin C. Raw meat and raw fish have smaller amounts. This is why traditional diets in places like the Arctic, where plant foods were scarce, relied on raw or lightly prepared animal organs to prevent deficiency. For most people today, plant foods are the practical source.
How Cooking Affects Vitamin C
Vitamin C is sensitive to heat and water. Boiling is the harshest method because the vitamin dissolves into the cooking water and breaks down from the heat. Research on boiled potatoes found that vitamin C retention ranged from 54% to 74%, meaning you lose roughly a quarter to nearly half of what was in the raw food. Cutting food into smaller pieces before boiling increases the loss, because more surface area is exposed to hot water.
To preserve the most vitamin C, eat produce raw when you can (peppers, strawberries, citrus). When you do cook, steaming and microwaving are gentler than boiling because the food has less contact with water. Roasting works well too. If you boil vegetables, using less water and cooking for a shorter time helps retain more of the vitamin.
How Much You Need
The recommended daily amount for adults is 90 mg for men and 75 mg for women. During pregnancy, the recommendation rises to 85 mg, and during breastfeeding it goes up to 120 mg. Children need less, ranging from 15 mg for toddlers up to 75 mg for teens. Smokers need an extra 35 mg per day on top of the standard recommendation, because smoking depletes vitamin C faster.
The daily value you see on food labels is set at 90 mg. Getting more than that isn’t harmful in normal food quantities. The upper limit for adults from supplements is 2,000 mg per day. Beyond that, you may experience digestive discomfort, nausea, or diarrhea. Your body can only absorb so much at once, and excess is excreted in urine.
Food vs. Supplements
Natural vitamin C from food and synthetic vitamin C in supplements are chemically identical. Multiple studies have found no meaningful difference in how well your body absorbs them. Research from the Linus Pauling Institute showed that vitamin C from cooked broccoli, orange juice, orange slices, and synthetic tablets all produced the same blood levels of the vitamin.
One small study did find that synthetic vitamin C delivered inside a natural citrus extract (with plant compounds, proteins, and carbohydrates) was absorbed 35% better than synthetic vitamin C taken alone. But across ten clinical studies, vitamin C paired with plant compounds from food showed no consistent absorption advantage over plain supplements. The practical takeaway: if you eat fruits and vegetables regularly, you don’t need a supplement. If your diet is limited, a basic vitamin C tablet works just as well as food-based sources for meeting your daily needs.