A complete safety, timing, and dosage guide for combining Probiotics (Lactobacillus, Bifidobacterium, Saccharomyces boulardii strains) with Krill Oil — including how the two supplements interact, the best time of day to take each, and which populations should be careful.
Yes, you can safely take probiotics and krill oil together — there is no significant interaction between these two supplements.
Probiotics and Krill Oil together are safe to combine; they work through different pathways and do not interfere with each other. You can add krill oil to your routine while continuing your probiotic supplement.
Probiotics are live bacteria and yeast that colonize the large intestine, while krill oil provides EPA and DHA omega-3s carried as phospholipids plus astaxanthin. They are absorbed and used through independent mechanisms: probiotics primarily act in the gut, while krill oil is digested and absorbed in the small intestine as fatty acids. There is no shared receptor or transport system that would cause competition. In fact, krill oil's anti-inflammatory effects may support a healthy intestinal lining, which could indirectly favor a balanced microbiome. Still, no direct interaction exists, so timing between them is not critical.
To get the most out of both, establish a consistent daily rhythm. Take krill oil with your largest meal — lunch or dinner — to boost absorption of EPA and DHA. Take probiotics at a different time of day, such as morning or before bed, but this is a preference, not a requirement. If you miss a dose of either, simply take it with your next meal; never take a double dose. Always follow the serving size on the label and check with your pharmacist or dietitian if you take prescription blood thinners.
The form matters mainly for individual absorption and storage, not for interaction. Krill oil is typically taken as a softgel, and taking it with a meal containing fat improves digestion. Probiotic efficacy depends on strain and delivery; some are enteric-coated to survive stomach acid, but this has no bearing on combining with krill oil. Keep probiotics stored as labeled, often refrigerated, while krill oil should be kept cool and away from sunlight.
Not typically sold as a single combination product, but both are frequently included in custom daily supplement packs that bundle a multivitamin, omega-3s, and a probiotic.
Yes, you can take them at the same time. Krill oil is absorbed in the small intestine while probiotics travel to the large intestine, so there is no conflict. If you have a sensitive stomach, you may prefer to take them a few hours apart, but it is not necessary.
Yes, it is safe to combine them daily. These are both well-tolerated supplements for most people, and they do not interfere with each other's action. Just follow the recommended dosages on each product.
You do not need to wait at all. If you want to be extra cautious about digestive comfort, separate them by two to three hours, but there is no nutrient competition that requires spacing.
No, they do not compete. Krill oil is digested and absorbed as fatty acids in the upper small intestine, while probiotics are live cultures that colonize the colon. Their absorption and actions are completely independent.
Most healthy adults can take them together safely. If you are on blood thinners, talk to your doctor before using krill oil, and if you have a severely weakened immune system, ask about probiotics first. Otherwise, no one needs to avoid this combination.
Krill oil is best taken with a meal that contains fat to improve digestion, while probiotics can be taken with or without food depending on your preference and the product's label. Taking them together with a meal is a perfectly good way to keep it simple.
Reviewed by Caroline M. on April 8, 2025 for accuracy against the sources listed above. This page is educational and is not a substitute for professional medical advice.
The matrix has 86 supplements and 7310 pairwise interactions. Click any cell to see the full breakdown.