Boswellia is rarely taken in isolation: it is part of joint complexes, and athletes often combine it with curcumin, collagen or omega-3. The editorial team has examined which combinations have a scientific basis, which are merely logical assumptions, and which are best avoided.
The logic of combinations
The idea of combining anti-inflammatory supplements is based on the fact that they act on different links of inflammation. Boswellic acids inhibit mainly 5-lipoxygenase, curcumin affects NF-κB and cyclooxygenase-2, omega-3 fatty acids change the composition of membranes and the synthesis of inflammatory mediators.
Theoretically, such a "multi-target" action can give a greater effect than each substance separately. However, theoretical synergy is not always confirmed in practice. Therefore the editorial team divides combinations into those studied in randomized trials and those that rely only on mechanistic logic.
Another reason to combine is different goals. Collagen or vitamin C are related to the synthesis of connective tissue rather than to inflammation, so their combination with boswellia is more of an addition than an enhancement.
Finally, an important practical aspect is bioavailability. Both boswellic acids and curcumin are fat-soluble and poorly absorbed, so taking them with a fatty meal is logical for both.
Boswellia and curcumin: the most studied pair
The combination of boswellia with curcumin has been studied in randomized trials. Haroyan and colleagues (2018) compared curcumin alone, curcumin combined with boswellia extract, and placebo in patients with knee osteoarthritis over 12 weeks.
Both active groups outperformed placebo in terms of pain and function, and the combination showed somewhat better results on individual indicators than curcumin monotherapy. The study is small and requires confirmation, but this is one of the few direct pieces of evidence of the advantage of the combination.
Mechanistically this pair is logical: curcumin and boswellia affect different enzymes of the inflammatory cascade. Both substances have low bioavailability, so improved forms are often used in commercial products.
In practice this combination is suitable for people with chronic joint pain who are ready for long-term intake. It should be remembered that both supplements can irritate the stomach, so it is better to take them with food.
Glucosamine, chondroitin, collagen
Glucosamine and chondroitin are classic components of "joint" complexes. The large GAIT study (Clegg et al., 2006) did not show a significant effect on pain in the general group of patients with knee osteoarthritis, although in the subgroup with moderate and severe pain the combination looked more promising.
The combination with boswellia is often found in products, but there are few high-quality studies of this exact triad. The main problem with complexes is the low doses of each component compared with the studied ones.
Collagen peptides and gelatin are studied to support tendons and ligaments, often in combination with vitamin C and training. Their mechanism of action - supplying amino acids for the synthesis of connective tissue - does not overlap with the anti-inflammatory effect of boswellia, so the combination is theoretically safe and logical.
If you choose such a "stack", the editorial team advises buying the components separately in a studied dose rather than relying on a complex where there is "a little" of each substance.
Omega-3, food and other additions
Omega-3 fatty acids (EPA and DHA) from fish oil have their own evidence base regarding the effect on inflammatory markers. The combination with boswellia has not been specifically studied, but both supplements are well tolerated, and fish oil additionally serves as a fatty carrier, which may improve the absorption of boswellic acids.
The simplest and most proven "combination" is taking boswellia with food that contains fats. Sterk and colleagues (2004) showed that this substantially increases the concentrations of boswellic acids in plasma.
| Combination | Level of evidence | Editorial comment |
|---|---|---|
| Boswellia + curcumin | RCT in osteoarthritis | The best-substantiated combination |
| Boswellia + fatty meal | Pharmacokinetic study | A simple and effective improvement in absorption |
| Boswellia + glucosamine/chondroitin | Mostly complexes without separate RCTs | Check the doses of each component |
| Boswellia + collagen + vitamin C | Mechanistic logic | Different goals, no conflicts expected |
| Boswellia + omega-3 | Mechanistic logic | A safe addition, fat as a carrier |
For athletes, the most important "addition" remains non-pharmacological measures: competent load planning, strength exercises for the muscles around the joint, body weight control and sufficient sleep. Supplements can only complement this foundation.
What is best avoided
- The simultaneous intake of several boswellia products - it is easy to imperceptibly exceed the dose.
- Combining it with NSAIDs on one's own on a permanent basis - the risk of gastrointestinal reactions increases and it is hard to assess the effect of each agent.
- The combination with anticoagulants, immunosuppressants and drugs with a narrow therapeutic window without a doctor's approval.
- Multi-component "proprietary blends" without disclosure of doses.
Laboratory data on the effect of the resin's components on cytochrome P450 enzymes (Frank and Unger, 2006) mean that when taking prescription drugs, any combination should be discussed with a doctor or pharmacist.
It is also not advisable to start several new supplements at the same time. If a side reaction or, conversely, an improvement appears, you will not be able to understand what exactly worked. It is wiser to add components gradually, with an interval of a few weeks.
Athletes undergoing doping control should remember: the more components in a product, the higher the potential risk of contamination. Choose certified products.
Editorial conclusions
The best-studied combination is boswellia with curcumin in osteoarthritis; the simplest and effective one is taking boswellia with food that contains fats.
Collagen, omega-3, glucosamine and chondroitin can be combined with boswellia, but mostly on the basis of mechanistic logic rather than direct evidence of synergy.
Avoid duplicating products, permanent combination with NSAIDs, and combining with prescription drugs without a doctor's consultation.
We also recommend reading our articles "How to take Boswellia: dosage, timing, duration", "Who should not take Boswellia" and "The benefits of Boswellia for athletes: the evidence base".
References
- Haroyan A, Mukuchyan V, Mkrtchyan N, et al. Efficacy and safety of curcumin and its combination with boswellic acid in osteoarthritis: a comparative, randomized, double-blind, placebo-controlled study. BMC Complement Altern Med. 2018;18(1):7.
- Clegg DO, Reda DJ, Harris CL, et al. Glucosamine, chondroitin sulfate, and the two in combination for painful knee osteoarthritis. N Engl J Med. 2006;354(8):795–808.
- Sterk V, Büchele B, Simmet T. Effect of food intake on the bioavailability of boswellic acids from a herbal preparation in healthy volunteers. Planta Med. 2004;70(12):1155–1160.
- Frank A, Unger M. Analysis of frankincense from various Boswellia species with inhibitory activity on human drug metabolising cytochrome P450 enzymes using liquid chromatography mass spectrometry after automated on-line extraction. J Chromatogr A. 2006;1112(1–2):255–262.
- Sengupta K, Alluri KV, Satish AR, et al. A double blind, randomized, placebo controlled study of the efficacy and safety of 5-Loxin for treatment of osteoarthritis of the knee. Arthritis Res Ther. 2008;10(4):R85.
- Ammon HPT. Boswellic acids in chronic inflammatory diseases. Planta Med. 2006;72(12):1100–1116.
- Yu G, Xiang W, Zhang T, et al. Effectiveness of Boswellia and Boswellia extract for osteoarthritis patients: a systematic review and meta-analysis. BMC Complement Med Ther. 2020;20(1):225.
Andriy Melnyk
A strength-sports coach and author of programs for beginner and intermediate levels. Writes about training planning.
