The fruit with the most vitamin C is the camu camu berry, which packs up to 3,000 mg per 100 grams. That’s roughly 40 times more than an orange. But unless you live near the Amazon, your best bet at a regular grocery store is guava, which delivers about 125 mg in a single fruit. Even more surprising, red bell peppers (technically a fruit) contain nearly three times the vitamin C of an orange.
The Top Vitamin C Fruits, Ranked
Not all fruits are created equal when it comes to vitamin C. Here’s how the most notable options compare:
- Camu camu: Up to 3,000 mg per 100 grams. This small Amazonian berry is the undisputed champion, but it’s mostly available as a powder. A single teaspoon of camu camu powder delivers around 682 mg of vitamin C.
- Acerola cherry: Roughly 1,600 to 1,700 mg per 100 grams. Like camu camu, acerola is usually sold as a supplement or powder rather than fresh fruit.
- Guava: About 125 mg per fruit. This is the grocery store winner. One guava gives you more than a full day’s worth of vitamin C.
- Kiwifruit: Around 70 to 90 mg per fruit. Two kiwis cover your daily needs easily.
- Orange: About 70 mg per medium fruit. Oranges are the most iconic vitamin C source, but they’re far from the richest.
- Strawberries: About 49 mg per half cup. A solid contributor, especially when eaten fresh.
Red bell peppers deserve a mention here. Botanically they’re a fruit, and they contain roughly 190 mg per cup, which is nearly triple what you’d get from a medium orange. If you eat peppers in salads or stir-fries, you may already be getting more vitamin C than you realize.
How Much You Actually Need
The recommended daily allowance is 90 mg for adult men and 75 mg for adult women. Smokers need an extra 35 mg per day because tobacco use depletes vitamin C faster. These numbers are easier to hit than most people think. A single guava, a cup of sliced bell pepper, or two kiwis each cover the full day’s requirement on their own.
More isn’t always better, though. Your body absorbs 100% of a 200 mg dose, but absorption drops sharply at higher amounts. At around 1,250 mg in a single dose, your body only absorbs about 33% of it, and the rest is excreted. Spreading your intake across meals is more efficient than loading up all at once.
What Vitamin C Does in Your Body
Vitamin C plays a direct role in building collagen, the protein that gives structure to your skin, joints, and blood vessels. It stabilizes the molecules that produce collagen and boosts the activity of fibroblasts, the cells responsible for generating new connective tissue. This repair capacity naturally slows with age, which is part of why adequate vitamin C matters more as you get older.
It also supports your immune system by protecting skin cells from UV damage and acting as an antioxidant throughout the body. Vitamin C pairs especially well with vitamin E. The two together are more effective at preventing sun-related skin damage than either one alone.
How Storage and Cooking Affect Vitamin C
Vitamin C breaks down when exposed to heat, light, and time. Research on orange juice concentrate shows how dramatically storage conditions matter: juice stored at room temperature (24°C) lost nearly 46% of its vitamin C over 19 weeks. The same juice stored in a refrigerator at 4°C lost only about 3%. Keeping fruits and juices cold makes a significant difference.
Cooking has a similar effect. Boiling fruits or vegetables in water is the fastest way to destroy their vitamin C content because the vitamin leaches into the water and degrades from heat. Eating fruits raw preserves the most vitamin C. If you’re cooking vegetables like bell peppers, quick methods like stir-frying or steaming retain more than prolonged boiling.
Best Practical Choices
If you’re shopping at a regular grocery store, guava and kiwifruit are your highest-vitamin-C fruit options. Pairing them with strawberries or citrus across the day gives you well more than you need without any supplements. For people who enjoy powdered supplements or smoothie add-ins, camu camu powder is extraordinarily concentrated, delivering about 760% of the daily value in a single teaspoon.
The biggest takeaway is that oranges, despite their reputation, sit in the middle of the pack. Guavas have nearly double the vitamin C, and red bell peppers have almost triple. Diversifying your fruit and vegetable choices is a more reliable strategy than relying on any single source.