Rubus x loganobaccus
1 association assessed — none with dependable human evidence behind them yet. Strongest first.
A dark red hybrid of raspberry and blackberry, sharper than either parent and too soft to ship fresh. The USDA entry is the frozen fruit, which is how the crop is almost always sold.
Also known as Logan blackberry
What each association actually rests on, and the papers behind it. A rating describes the state of the research, not how impressive the food is. How we rate evidence.
No human trial has tested loganberries. Findings for raspberries and blackberries are sometimes extended to them on the basis of shared ancestry, which is an assumption rather than evidence.
Insufficient evidence. Not enough human research to say anything useful yet.
Answers are written only from the entries on this page — the same nutrients, compounds, claims and citations you can read above. Nothing is added from outside the database, and every answer lists what it was built from.
AI explanations are not switched on for this site, so there is nothing to ask here. Everything above is read straight from the database and does not need them.
| Nutrient | Amount | % DV |
|---|---|---|
| Macronutrients | ||
| Calories | 55 kcal | 3% |
| Protein | 1.52 g | 3% |
| Total fat | 0.31 g | 0% |
| Carbohydrate | 13 g | 5% |
| Fibre | 5.3 g | 19% |
| Total sugars | 7.7 g | — |
| Water | 84.6 g | — |
| Fats | ||
| Saturated fat | 0.011 g | 0% |
| Monounsaturated fat | 0.03 g | — |
| Polyunsaturated fat | 0.176 g | — |
| Cholesterol | 0 mg | 0% |
| EPA (omega-3) | 0 g | — |
| DHA (omega-3) | 0 g | — |
| DPA (omega-3) | 0 g | — |
| Linoleic acid (omega-6) | 0.117 g | — |
| Vitamins | ||
| Vitamin A | 2 µg | 0% |
| Vitamin C | 15.3 mg | 17% |
| Vitamin D | 0 µg | 0% |
| Vitamin E | 0.87 mg | 6% |
| Vitamin K | 7.8 µg | 7% |
| Thiamin (B1) | 0.05 mg | 4% |
| Riboflavin (B2) | 0.034 mg | 3% |
| Niacin (B3) | 0.84 mg | 5% |
| Pantothenic acid (B5) | 0.244 mg | 5% |
| Vitamin B6 | 0.065 mg | 4% |
| Folate | 26 µg | 7% |
| Vitamin B12 | 0 µg | 0% |
| Choline | 8.5 mg | 2% |
| Minerals | ||
| Calcium | 26 mg | 2% |
| Iron | 0.64 mg | 4% |
| Magnesium | 21 mg | 5% |
| Phosphorus | 26 mg | 2% |
| Potassium | 145 mg | 3% |
| Sodium | 1 mg | 0% |
| Zinc | 0.34 mg | 3% |
| Copper | 0.117 mg | 13% |
| Manganese | 1.25 mg | 54% |
| Selenium | 0.2 µg | 0% |
| Other measured compounds | ||
| Beta-carotene | 21 µg | — |
| Alpha-carotene | 0 µg | — |
| Lycopene | 0 µg | — |
| Lutein + zeaxanthin | 118 µg | — |
| Caffeine | 0 mg | — |
| Ash | 0.54 g | — |
Nutrient values are per 100 g of the USDA reference entry named on this page and vary with variety, growing conditions, storage and preparation.
Source record: Loganberries, frozen (USDA FoodData Central, FDC ID 169088).
% DV uses the FDA Daily Values for adults and children aged 4 and over. A dash means no Daily Value has been established for that nutrient.
Compounds present in meaningful amounts. Presence is banded rather than quantified, because whole-food levels vary enormously with variety, growing conditions, storage and preparation.
Flavonoid pigment
The water-soluble pigments behind red, purple and blue plant colour. Poorly absorbed intact; much of their measurable activity comes from microbial…
Polyphenol (class)
An umbrella term for thousands of plant phenolic compounds. Useful as a category, but a "high polyphenol" figure says nothing about which compounds…
Hydrolysable tannin
Tannins in pomegranate, walnuts and berries. Gut bacteria convert them to urolithins, and only some people carry the microbes that do it efficiently.
Characteristic of Rubus fruit, and the precursor to urolithins formed by gut bacteria.
Microbial metabolite
Gut-bacterial metabolites of ellagitannins. Whether someone produces them at all depends on their microbiome, which complicates every pomegranate and…
Not in the berry itself; produced in the colon, and only by some people.
Only effects with real support are listed. If a preparation method is missing, it is because nothing dependable is documented — not because it makes no difference.
Nothing dependable is recorded about how preparation changes this food’s nutritional properties. Rather than guess, this section stays empty.
Allergies, interactions and intake concerns. Every food gets this section — a reference where everything is uniformly good is not a reference.
Worth knowing
Like raspberries and blackberries, loganberries sit in the moderate-to-high oxalate band. People managing calcium oxalate stone risk are usually advised to count them towards a daily total.
Allergy
As a Rubus hybrid, loganberry can provoke oral itching in people sensitised to birch pollen or to other Rosaceae fruit.
Too much
Loganberries are tart enough that most culinary uses add sugar. The frozen fruit in this entry is unsweetened, but the pie is not.