Camu Camu (Myrciaria dubia) is a small, tart berry native to the floodplains and riverbanks of the Amazon rainforest, particularly in Peru and Brazil. It has been used by indigenous Amazonian communities for generations as both a food and a natural remedy. What sets it apart from other fruits is its extraordinary vitamin C content — gram for gram, far higher than oranges — along with a rich cocktail of polyphenols and antioxidants.

The primary driver behind Camu Camu's benefits is its vitamin C, which the body uses for immune cell production, collagen synthesis, and neutralizing free radicals that damage cells. Unlike synthetic vitamin C supplements, Camu Camu delivers its ascorbic acid alongside plant compounds like anthocyanins and ellagic acid, which may help enhance absorption and add independent anti-inflammatory effects. Together these compounds help calm oxidative stress — a root contributor to aging, inflammation, and chronic disease.

Freeze-dried powder preserves the most vitamin C and polyphenols and mixes easily into smoothies or water. Capsules offer convenience and precise dosing. Juice concentrates are available but may lose some heat-sensitive vitamin C during processing. Always look for products that confirm vitamin C content per serving on the label.

• Weak immune system
• Inflammation and oxidative stress
• Skin health and collagen production
• High blood pressure
• Blood sugar regulation
• Gut health and microbiome balance
• Fatigue and low energy
• Eye health
• Mood and stress support
• Gum disease and oral health

• Vitamin C deficiency and subclinical scurvy
• Oxidative cell damage linked to chronic disease risk
• Iron-deficiency anemia progression (by enhancing iron absorption)

• Camu Camu berry (fresh or freeze-dried) — The direct source — contains 1,500–3,000 mg vitamin C per 100 g of pulp, far outpacing any other whole food.
• Acerola cherry — The closest rival in natural vitamin C concentration, also rich in antioxidant flavonoids similar to Camu Camu.
• Guava — Exceptionally high in vitamin C for a common fruit, with around 200 mg per 100 g, plus flavonoids and fiber.
• Kiwifruit — One of the best everyday sources of vitamin C, delivering roughly 90 mg per fruit alongside vitamin K and antioxidants.
• Bell peppers (especially red) — One of the highest vegetable sources of vitamin C at around 150 mg per 100 g, with additional carotenoids.

• Digestive upset, bloating, or diarrhea at high doses (above 2,000 mg vitamin C per day)
• Nausea if taken on an empty stomach in large amounts
• Kidney stone risk increase in people with a personal history of oxalate stones (high vitamin C raises urinary oxalate)
• Dental enamel erosion with excessive use of acidic powder directly on teeth — rinse or use a straw
• Headaches rarely reported with very high doses

• Recommended daily: 500–1,500 mg of Camu Camu powder (standardized to deliver roughly 500–1,000 mg vitamin C). Many supplements dose at 1 teaspoon of powder (~5 g) daily.
• Best time of day: Morning is ideal — vitamin C supports energy metabolism and sets up antioxidant defenses for the day ahead.
• With or without food: Best taken with food to reduce risk of stomach upset, especially at higher doses. Mixing into a smoothie or juice is a popular and effective approach.
• Time to effect: Antioxidant and immune effects typically noticeable within 2–4 weeks of daily use; skin improvements may take 6–8 weeks.
• How long to take it: Safe for continuous long-term daily use at standard doses. No cycling required. Those taking very high doses (above 2,000 mg vitamin C equivalent daily) may want to periodically reassess with their healthcare provider.