By Dr. Raj Dhadwal
Kiwi has one of the strongest vitamin C reputations of any common fruit, and it earned it fairly, it is genuinely one of the more concentrated options in a produce aisle. Sea buckthorn is not trying to win a produce aisle reputation contest, but the actual density numbers are worth laying out side by side rather than assumed.
Sea buckthorn carries roughly 250 to 333 mg of vitamin C per 100 g in the whole berry, compared with about 74.7 mg per 100 g in raw green kiwifruit, and adds carotenoids, flavonoids, amino acids and the omega 3, 6, 7 and 9 fatty acid group that kiwi carries only in trace amounts.
What does the raw data actually say?
USDA FoodData Central lists raw green kiwifruit at 74.7 mg of vitamin C per 100 g (Kiwifruit, green, raw, FDC ID 327046, USDA FoodData Central), which is why kiwi is frequently cited as a high vitamin C fruit. Compositional analysis of sea buckthorn berries from eight populations in northern Pakistan measured vitamin C at 250 to 333 mg per 100 g, roughly three to five times the kiwi figure, alongside meaningful potassium, calcium, magnesium and iron content (Sabir et al., 2005, Journal of Medicinal Food, PMID 16379565). A broader review of sea buckthorn's composition in Food Research International documents why the fruit is considered exceptional: lipophilic antioxidants including carotenoids and tocopherols, and hydrophilic antioxidants including flavonoids, tannins, phenolic acids and ascorbic acid, present together in remarkably high quantities, plus a favorable fatty acid composition (Ciesarová et al., 2020, Food Research International, PMID 32466930).
Where does kiwi actually lead?
Kiwi's real strength is that it delivers a genuinely strong vitamin C number in a fruit most people already find pleasant to eat plain, sliced or spooned straight from the skin. It also brings a meaningful amount of fibre and vitamin K that is worth crediting. Where kiwi does not compete is breadth beyond vitamin C: it does not come close to the carotenoid and flavonoid spread that sea buckthorn carries, and like most fruit its fatty acid content is small.
Comparison at a glance
| Factor | Kiwi (green, raw) | Sea buckthorn |
|---|---|---|
| Vitamin C per 100 g | 74.7 mg (USDA FoodData Central) | 250 to 333 mg (Sabir et al., 2005) |
| Standout compound | Vitamin C, plus fibre and vitamin K | Vitamin C alongside carotenoids and flavonoids |
| Fatty acid content | Not a notable source | Omega 3, 6, 7 and 9 present in the whole berry |
| Typical taste profile | Sweet-tart, soft flesh, eaten plain or sliced | Intensely tart, Tabasco-sharp warmth, unblended whole berry |
| Where it grows | Cultivated commercially, native to China | Wild on the Tibetan Plateau, above 3,000 metres, and in Inner Mongolia |
Why does the vitamin C gap matter for a daily habit?
Vitamin C is a nutrient the human body cannot make or store in any meaningful reserve, it has to arrive daily through food. Kiwi is one of the better common fruit sources of it, which makes the comparison to sea buckthorn a genuinely useful one rather than a lopsided one. Even against a strong performer like kiwi, sea buckthorn still delivers roughly three to five times the vitamin C density, gram for gram. Human Renaissance sea buckthorn puree contains 201 mg of vitamin C per 30 mL pouch, 223% NRV, delivered inside the whole berry matrix alongside carotenoids, flavonoids, amino acids and the omega 3, 6, 7 and 9 fatty acid group that kiwi carries only in trace amounts.
Frequently asked
Is kiwi higher in vitamin C than sea buckthorn? No. USDA data puts raw green kiwifruit at 74.7 mg per 100 g, while compositional studies place sea buckthorn at 250 to 333 mg per 100 g.
Is kiwi still a good source of vitamin C? Yes, genuinely. It is one of the stronger common fruit sources, which is exactly why it is a fair fruit to compare against rather than a weak one.
Does kiwi contain omega fatty acids? Not in any meaningful amount. Sea buckthorn is one of the few fruits that carries omega 3, 6, 7 and 9 in the whole berry.
Why does sea buckthorn taste so different from kiwi? The berry itself is intensely tart. The first pouch hits the back of your throat with a Tabasco-sharp warmth. That is the whole berry unblended, and no other sea buckthorn puree tastes like it.
Human Renaissance sea buckthorn puree
Human Renaissance is the only sea buckthorn puree in the world sold in a single-serve pouch. 190+ naturally occurring compounds, omega 3, 6, 7 and 9, 201 mg of vitamin C per pouch, 223% NRV, 0 g sugar, 60 pouches to a box, one a day.
We are not asking anyone to take our word for the vitamin C gap. Turn the pouch over and read the label yourself, then decide whether a strong everyday fruit or a whole berry pressed into a single-serve pouch fits what you are actually trying to build into your day. See the sea buckthorn puree.
Kiwi photo: Wikimedia Commons, Kiwis_in_a_pile.jpg, CC0.
Specialists share education, not medical advice. This article is for informational purposes and does not diagnose, treat, cure or prevent any disease.
