Last updated: July 27, 2026
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The short version
After researching the certifications, ingredients, and sourcing of the organic prune juices you can actually buy, our top pick is Lakewood Organic Pure Prune Juice. It is USDA Organic, 100% juice with nothing added, and made from whole organic prunes (dried plums), which is why it earned our highest Organic Integrity Score of 92 out of 100. The other genuinely organic option worth buying is R.W. Knudsen Organic Just Prune Juice, our value pick.
A quick, honest note: truly USDA-organic prune juice is a small category. Most prune juice on the shelf (including big names like Sunsweet) is 100% juice but not certified organic. So rather than pad this guide with non-organic bottles, we focus on the two prune juices that are genuinely both organic and 100% juice. Both are covered below.
Key things to look for in organic prune juice
Prune juice is both a pantry staple and a gentle digestive helper, so purity matters. Here is what separates a good bottle from a sugary one.
1. USDA Organic prunes
Organic sourcing means the plums were grown without synthetic pesticides, worth it for a concentrated fruit juice.
2. 100% juice, no added sugar
Prunes are naturally sweet, so the best juices need nothing added, no sugar, syrups, or synthetic preservatives.
3. Natural sorbitol and fiber
Prune juice’s gentle digestive effect comes from its natural sorbitol and fiber, not additives, so pure juice is what you want.
4. Glass packaging
Glass protects the flavor of this rich, dark juice and avoids storing acidic liquid in plastic.
Organic vs conventional prune juice: does it matter?
Most conventional prune juice is 100% juice already (it rarely needs added sugar), but organic sourcing ensures the plums were grown without synthetic pesticides, and the best organic bottles avoid added preservatives. Since prune juice is concentrated from dried plums, starting with clean, organic fruit is meaningful.
The gentle regularity benefit is well recognized: the NIH notes that prunes and prune juice are a common dietary approach to occasional constipation. Our scoring weights organic certification and clean, 100%-juice ingredients alongside flavor and value, with the honest reminder that prune juice is high in natural sugar and best enjoyed in sensible servings.
How to choose an organic prune juice
- USDA Organic seal. Confirms pesticide-free plums, and, as noted, this narrows the field to just a couple of bottles.
- “100% juice, no sugar added.” Prunes are sweet enough; avoid added sugar or preservatives.
- Glass bottle where possible, for flavor and to avoid acidic juice in plastic.
- Serving size. Start with a small serving (4 ounces) for the digestive effect, since more is not always better.
- Moderation. It is naturally high in sugar, so treat it as a functional drink, not an all-day beverage.
Our top organic prune juices at a glance
| Best Choice | Best Value | |
| Product | Lakewood Organic | R.W. Knudsen Organic |
| Organic Integrity Score | 92/ 100 | 88/ 100 |
| Best for | Best overall | Value |
| Type | 100% juice, glass | 100% juice |
| Certification | USDA Organic | USDA Organic, Non-GMO |
| Price | Check price | Check price |
Scores are ours, based on independent research of certification, ingredient purity, sourcing, and value, using the same 10-criteria method we apply to every product.
Best overall: Lakewood Organic Pure Prune Juice
| Organic Integrity Score | 92 / 100 |
| Certification | USDA Organic |
| Type | 100% juice from whole organic prunes, in glass |
| Best for | A pure, all-purpose organic prune juice |
Lakewood is our top pick because it is about as pure as prune juice gets: USDA Organic, 100% juice made from whole organic prunes, bottled in glass, with no added sugar or synthetic preservatives. The juice from more than three pounds of prunes goes into every bottle, so it delivers the gentle, natural benefits of prunes without anything extra.
The trade-off is a premium price and, like all pure juice, a shorter fridge life once opened. For a clean, effective organic prune juice, it is our first choice.
What we liked: USDA Organic, 100% juice from whole prunes, glass bottle, no additives, with the natural sorbitol and fiber that make prune juice useful.
Keep in mind: It is premium-priced and, like all prune juice, naturally high in sugar, so stick to sensible servings.
What buyers say: Buyers value the clean ingredients and gentle effectiveness. The main note is the price versus mainstream bottles.
Best value: R.W. Knudsen Organic Just Prune Juice
| Organic Integrity Score | 88 / 100 |
| Certification | USDA Organic, Non-GMO Project Verified |
| Type | 100% juice, no sugar added |
| Best for | A trusted, more affordable organic option |
R.W. Knudsen Organic Just Prune Juice is our value pick, and the other prune juice we can recommend without reservation. It is USDA Organic and Non-GMO Project Verified, 100% juice with no added sugar, made as a single-fruit extract from organic dried prunes, from a juice brand that has specialized in pure fruit juices since 1961.
It scores just below our top pick mainly on the premium glass packaging and richness of Lakewood, but on the fundamentals, organic and 100% juice, it delivers at a friendlier price and is widely available.
What we liked: USDA Organic, Non-GMO, 100% juice with no added sugar, from a long-trusted juice brand, at a more affordable price.
Keep in mind: It is a straightforward everyday bottle rather than a premium glass-bottled juice, and, like all prune juice, high in natural sugar.
What buyers say: Buyers rely on it as a dependable, gentle, genuinely organic prune juice. Some prefer the richer taste of the premium pick.
How to use prune juice
For gentle digestive support, start with a small serving (about 4 ounces) and increase only if needed, ideally in the morning or evening with water alongside. Because prune juice is naturally high in sugar, treat it as a functional drink rather than an all-day beverage, and pair it with a fiber-rich diet and plenty of water. If constipation is persistent or severe, talk to your doctor rather than relying on juice alone. Prune juice also works in marinades and baking, where its rich sweetness shines.
How we researched this guide
We are a research-based review site. We did not lab-test these juices ourselves, and this is general information, not medical advice. We compared each against its certification, ingredient list, processing, packaging, and the weight of aggregated customer feedback, then scored each with our 10-criteria Organic Integrity Score. We deliberately left out prune juices that are not certified organic rather than pad the list. No brand paid to be included or ranked. Read more about our method on the How We Research and Rate page.
Frequently asked questions
What is the best organic prune juice?
Our overall pick is Lakewood Organic Pure Prune Juice, because it is USDA Organic, 100% juice from whole organic prunes, bottled in glass with no additives. The best value organic option is R.W. Knudsen Organic Just Prune Juice.
Why are there only two organic prune juices here?
Truly USDA-organic prune juice is a small category. Most prune juice sold, including major brands, is 100% juice but not certified organic. Rather than list non-organic bottles, we focus on the two that are genuinely both organic and 100% juice.
Does prune juice help with constipation?
Prune juice is a widely used, gentle dietary approach to occasional constipation, thanks to its natural sorbitol and fiber. Start with a small serving. If constipation is persistent or severe, talk to your doctor.
How much prune juice should I drink?
A typical serving is 4 to 8 ounces. Because prune juice is high in natural sugar, start small, drink water alongside, and treat it as a functional drink rather than an all-day beverage.
Is prune juice high in sugar?
Yes. Prune juice is concentrated from dried plums and is naturally high in sugar even with no sugar added, so it is best enjoyed in sensible servings.
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