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营养补充剂与肌肉骨骼健康
Evidence on dietary supplements for joint, muscle and bone health — protein and amino acids, creatine, collagen peptides, glucosamine and chondroitin, and omega-3 — including perioperative recovery and osteoarthritis.
什么是营养补充剂¶
营养补充剂是您通过口服摄入的额外营养素,例如蛋白质、氨基酸、鱼油、胶原蛋白,或葡萄糖胺和软骨素等关节产品。它们不是医生开出、用来代替手术或物理治疗的药物。它们与您的常规治疗同时使用。
人们会在不同的时候考虑使用补充剂。有些在关节置换或骨折手术前后使用,以帮助身体应对手术带来的压力。另一些被用来尝试缓解关节炎疼痛,或在膝关节韧带撕裂等损伤之后使用。运动员有时也会使用,不过有些产品可能会带来违反反兴奋剂规定的问题 [1]。
其背后的思路相当简单。您的身体需要原料来修复骨骼、肌肉和软骨。蛋白质和氨基酸就是肌肉的原料。鱼类中含有的 omega-3 油被认为可以减轻关节的炎症。葡萄糖胺和软骨素是构成软骨的物质,因此补充它们可能有助于支持关节表面。
不同产品的证据差别很大。葡萄糖胺和软骨素有良好的安全记录,可能是关节炎早期一个合理的选择 [2]。研究显示,服用 omega-3 补充剂3-4个月,可以减轻关节疼痛和晨僵,并减少对抗炎药片的需要 [3]。在关节置换或韧带手术前后补充蛋白质,可能有助于在恢复期间保护肌肉 [4]。其他产品,例如肽类补充剂,目前还没有足够可靠的证据,因而不被推荐作为标准骨科治疗的一部分 [5]。
医生可以与您讨论这些补充剂中哪些(如果有的话)可能适合您的情况,以及哪些不值得您花钱或花精力。
它有效吗?¶
坦白地说,这取决于是哪种补充剂,以及您正在从什么情况中恢复。有些产品有真实的证据支持,另一些则没有。
在手术前后,蛋白质补充剂看起来最有前景。它们可能有助于您在关节置换、韧带重建或髋部骨折手术后的恢复期间保护肌肉 [4]。一项综述发现,一种低成本的氨基酸补充剂使术后并发症减少 [6]。对于髋部骨折的老年人,均衡的营养补充剂与术后头120天内更少的并发症和更少的死亡相关 [7]。营养建议结合补充剂,也可能帮助您在关节置换后更早下地活动 [8]。
对于关节炎,情况则好坏参半。葡萄糖胺和软骨素有很强的安全记录,可能缓解疼痛并改善功能,但关于其长期影响和合适的剂量,仍有未解答的问题 [9]。研究显示,服用 omega-3 油3至4个月,可以减轻关节疼痛和晨僵,并减少对抗炎药片的需要 [3]。与安慰剂(不含有效成分的补充剂)相比,胶原蛋白肽缓解了膝关节炎的疼痛 [10]。
在韧带手术后,一项研究发现,一种由胶原蛋白、透明质酸、软骨素和血浆蛋白组成的复合补充剂,帮助人们更早恢复到受伤前的活动水平,并减少止痛药的用量 [11]。但在同一手术后康复的头12周内,肌酸没有显示出任何益处 [12]。
证据中确实存在空白。许多研究规模较小,有些结果好坏参半。例如,在关节置换前后直接经静脉输注蛋白质显示出一些益处,但它对肌肉力量和功能的影响并不一致 [13]。针对宣称可提升运动表现的氨基酸的研究,往往无法支持这些宣传 [14]。脊柱手术方面的证据很有前景,但并不完整,仍需更多研究来确定最佳做法 [15]。
医生可以帮助您权衡,哪些补充剂在您的情况下有可靠的证据,哪些没有。
风险有哪些?¶
对于这些补充剂中的大多数来说,主要的风险是它们没有帮助。在膝关节韧带重建后康复的头12周内,肌酸没有显示出任何益处 [12]。在科学研究中,宣称可提升运动表现的氨基酸往往达不到这些宣传的效果 [14]。肽类补充剂目前还没有足够可靠的证据,因而不被推荐作为标准骨科治疗的一部分 [5]。
有些产品带有另一种风险。运动员需要格外小心,因为有些补充剂可能损害您的健康或运动表现,有些还可能导致违反反兴奋剂规定,从而影响您的声誉和生计 [1]。
证据所能说明的内容也有局限。在关节置换前后直接经静脉输注蛋白质有一些益处,但它对肌肉力量和功能的影响并不一致 [13]。硫酸葡萄糖胺可能在副作用很少的情况下缓解疼痛并改善功能,但关于其长期影响和合适的剂量,仍有未解答的问题 [9]。在一项研究中,钙补充剂看起来有助于骨折愈合,但在同一项研究中并没有提高骨骼强度 [16]。
另一方面,有些风险看起来较低。葡萄糖胺和软骨素有良好的安全记录 [2]。在手术前后使用一种低成本的氨基酸补充剂,使并发症减少,并被描述为一种低风险的干预措施 [6]。对于髋部骨折的老年人,口服营养补充剂和营养师的帮助也被描述为低风险 [17]。
坦白地总结,不同产品的安全情况各不相同。有些产品经过了仔细研究,看起来引起的问题很少。另一些在证据上存在空白,因此人们对其风险了解较少。医生可以帮助您权衡您正在考虑的任何产品的已知情况,包括它可能如何与您的其他治疗相互影响。
这适合您吗?¶
如果您即将接受关节置换或骨折手术,尤其是在饮食摄入不足的情况下,补充剂可能适合您。如果您存在营养不良,营养建议以及含有氨基酸和微量营养素的补充剂,是医生可以提供的选择 [18]。对于髋部骨折后的老年人,口服补充剂和营养师的帮助可能改善恢复情况和存活率 [17]。一种均衡的补充剂与髋部骨折手术后头120天内更少的并发症和更少的死亡相关 [7]。
如果您患有膝关节磨损性关节炎(骨关节炎),硫酸葡萄糖胺可能缓解疼痛并改善关节的功能 [19]。由于它有良好的安全记录,在接受更复杂的治疗之前,它可能值得一试。
有些人获益的可能性较小。如果您饮食良好,也没有计划手术,额外的蛋白质或氨基酸可能作用不大。钙补充剂看起来有助于骨折愈合,但在同一项研究中并没有提高骨骼强度 [16]。如果您是运动员,请仔细核查任何产品,因为有些产品可能违反反兴奋剂规定 [1]。
与手术或物理治疗相比,补充剂是与您的常规治疗同时使用,而不是取代它。它们与良好的营养建议和有条理的康复计划相结合时,效果往往最好。
这是一个共同做出的决定。请把您正在考虑的任何补充剂,连同您的其他药物和健康状况,一起告诉医生。你们可以一起决定该产品的证据是否符合您的情况,或者您的精力是否更值得花在别处。
核心要点¶
补充剂在少数几种情况下值得考虑,主要是在手术前后或用于关节炎疼痛。在关节置换或髋部骨折手术前后,蛋白质和均衡的营养补充剂是低风险的选择,可能意味着更少的并发症 [6] [7]。对于膝关节磨损性关节炎,硫酸葡萄糖胺可能缓解疼痛并改善功能,且副作用很少 [9]。请预期适度的改善,而不是显著的效果,并且要知道,有些产品完全没有显示出益处,例如韧带手术后使用肌酸 [12]。最重要的提醒是:在开始服用任何补充剂之前,请先与医生沟通,因为不同产品的证据各不相同,有些可能与您的其他治疗或反兴奋剂规定相冲突。
参考文献¶
[1] IOC consensus statement: dietary supplements and the high-performance athlete. British Journal of Sports Medicine. 2018. DOI: 10.1136/bjsports-2018-099027
[2] A Review of Evidence‐Based Medicine for Glucosamine and Chondroitin Sulfate Use in Knee Osteoarthritis. Arthroscopy. 2008. DOI: 10.1016/j.arthro.2008.07.020
[3] A meta-analysis of the analgesic effects of omega-3 polyunsaturated fatty acid supplementation for inflammatory joint pain. Pain. 2007. DOI: 10.1016/j.pain.2007.01.020
[4] Poster 363: Post-Operative Protein Supplementation following Orthopaedic Surgery: A Systematic Review. Orthopaedic Journal of Sports Medicine. 2023. DOI: 10.1177/2325967123s00326
[5] Peptide Supplements and Their Therapeutic Applications in Sports Medicine. The American Journal of Sports Medicine. 2026. DOI: 10.1177/03635465261464420
[6] Essential Amino Acid Supplementation: Feed the Injured Patient. Journal of Bone and Joint Surgery. 2022. DOI: 10.2106/jbjs.22.00078
[7] Nutritional Supplementation Decreases Hip Fracture-related Complications. Clinical Orthopaedics and Related Research. 2006. DOI: 10.1097/01.blo.0000224054.86625.06
[8] Perioperative Nutritional Optimization in Total Joint Arthroplasty: From Screening to Supplementation. The Journal of Arthroplasty. 2026. DOI: 10.1016/j.arth.2026.03.088
[9] Use of Glucosamine and Chondroitin Sulfate in the Management of Osteoarthritis. Journal of the American Academy of Orthopaedic Surgeons. 2001. DOI: 10.5435/00124635-200109000-00009
[10] Analgesic efficacy of collagen peptide in knee osteoarthritis: a meta-analysis of randomized controlled trials. Journal of Orthopaedic Surgery and Research. 2023. DOI: 10.1186/s13018-023-04182-w
[11] Efficacy and Tolerability of a Dietary Supplement Containing Collagen, Hyaluronic Acid, Chondroitin Sulfate and Plasma Proteins in the Recovery After Anterior Cruciate Ligament Reconstruction. Orthopaedic Journal of Sports Medicine. 2018. DOI: 10.1177/2325967118s00040
[12] The Effect of Creatine Supplementation on Strength Recovery after Anterior Cruciate Ligament (ACL) Reconstruction. The American Journal of Sports Medicine. 2004. DOI: 10.1177/0363546503261731
[13] Peri-operative protein or amino acid supplementation for total joint arthroplasty: a systematic review and meta-analysis. Journal of Orthopaedic Surgery and Research. 2025. DOI: 10.1186/s13018-025-05847-4
[14] FACTS AND FALLACIES OF PURPORTED ERGOGENIC AMINO ACID SUPPLEMENTS. Clinics in Sports Medicine. 1999. DOI: 10.1016/s0278-5919(05)70173-3
[15] Perioperative Nutritional Optimization in Spine Surgery. Journal of the American Academy of Orthopaedic Surgeons. 2025. DOI: 10.5435/jaaos-d-24-01101
[16] Effects of calcium supplements on fracture healing in a rat osteoporotic model. Journal of Orthopaedic Research. 2010. DOI: 10.1002/jor.21180
[17] Cochrane in CORR®: Nutritional Supplementation for Hip Fracture Aftercare in Older People. Clinical Orthopaedics & Related Research. 2019. DOI: 10.1097/corr.0000000000000658
[18] The Role of Perioperative Nutritional Status and Supplementation in Orthopaedic Surgery. JBJS Reviews. 2024. DOI: 10.2106/jbjs.rvw.23.00242
[19] Possible synergic action of non-steroidal anti-inflammatory drugs and glucosamine sulfate for the treatment of knee osteoarthritis: a scoping review. BMC Musculoskeletal Disorders. 2022. DOI: 10.1186/s12891-022-06046-6
Evidence & references
This is the clinical evidence summary written for health professionals. It is technical, and it lists the research this page was built from. You do not need to read it to understand your treatment or to make a decision about it.
Overview¶
- Peptide supplements should not currently be recommended as a replacement or adjunct for existing orthopaedic standard of care due to the lack of robust efficacy and safety data [1].
- Specific nutritional supplementation alone might benefit geriatric patients, especially those who are unable to exercise [2].
- Intravenous peri-operative protein or amino acid supplementation offers benefits for total joint arthroplasty, while effects on muscle strength and function are mixed [3].
- Glucosamine and chondroitin sulfate have an excellent safety profile and may serve a role as an initial treatment modality for many osteoarthritis patients [4].
- Adjuvant oral supplementation containing collagen, hyaluronic acid, chondroitin sulfate, and plasma proteins may increase the efficacy of physical therapy after anterior cruciate ligament reconstruction by shortening the time needed to return to pre-injury activity and reducing analgesic consumption [5].
- The evidence supports the efficacy of non-steroidal anti-inflammatory drugs and glucosamine sulfate in reducing pain, improving function, and possibly regulating joint damage in knee osteoarthritis [7].
- Supplementation with omega-3 polyunsaturated fatty acids for 3-4 months reduces patient-reported joint pain intensity, minutes of morning stiffness, number of painful and/or tender joints, and NSAID consumption [8].
- Conditionally essential amino acid supplementation has a protective effect against common complications and early skeletal muscle wasting after operative fixation of extremity and pelvic fractures [9].
- The appropriate use of some dietary supplements can benefit the athlete, while others may harm the athlete’s health, performance, and/or livelihood and reputation if an antidoping rule violation results [12].
- Glucosamine sulfate has the potential to relieve pain and improve function with low side effects, but unanswered questions regarding long-term effects and dosage preclude a definitive endorsement [11].
- Nutritional supplementation has been shown to markedly reduce hospital costs by reducing rates of ICU admissions, hospital-associated complications, and hospital-acquired infections in orthopaedic surgery [14].
- Glucosamine and chondroitin sulfate may be considered reasonable treatment options as part of a multimodal approach for symptomatic primary hand osteoarthritis if the cost is not prohibitive [15].
- Substantial barriers to nutritional optimization in spine surgery include inconsistent protocols and patient nonadherence, highlighting the need for multifactorial assessment and standardization of multidisciplinary nutritional protocols [32].
How It Works¶
Protein and Amino Acids¶
- Intravenous protein or amino acid supplementation offers benefits for total joint arthroplasty, while effects on muscle strength and function are mixed [3].
- Conditionally essential amino acid (CEAA) supplementation has a protective effect against common complications and early skeletal muscle wasting after operative fixation of extremity and pelvic fractures [9].
- Nutritional supplementation has been shown to markedly reduce hospital costs by reducing rates of ICU admissions, hospital-associated complications, and hospital-acquired infections [14].
- Protein supplementation is a low-cost intervention that is easy to incorporate into perioperative management [18].
- The beneficial effects of protein supplementation on muscle strength could potentially reduce the risk of longer-term complications, such as falls and periprosthetic fracture [18].
- Protein supplementation appears to have beneficial effects on mitigating muscle atrophy in the postoperative period following ACLR, THA, TKA, and surgical treatment of hip fracture [21].
- Protein-containing nutrient supplementation immediately after single exercise sessions promotes the restoration of distal vasti muscle mass and knee extension muscle strength with resistance training in ACL patients [20].
- With protein supplementation, protein intakes at amounts greater than ~1.6 g/kg/day do not further contribute to resistance training-induced gains in fat-free mass [25].
Glucosamine and Chondroitin Sulfate¶
- The excellent safety profile of glucosamine and chondroitin sulfate should be discussed with patients, and they may serve a role as an initial treatment modality for many osteoarthritis patients [4].
- Glucosamine sulfate has the potential to relieve pain and improve function with low side effects [11].
- Unanswered questions regarding long-term effects and dosage preclude a definitive endorsement of glucosamine sulfate [11].
- The lack of substantial evidence currently prevents a ringing endorsement of glucosamine and chondroitin sulfate agents [11].
- Evidence supports the efficacy of non-steroidal anti-inflammatory drugs and glucosamine sulfate in reducing pain, improving function, and possibly regulating joint damage in knee osteoarthritis [7].
- If the cost is not prohibitive, glucosamine and chondroitin sulfate products may be considered reasonable treatment options as part of a multimodal approach for symptomatic primary hand osteoarthritis [15].
- High concentrations of glucosamine–chondroitin sulfate can alter the cyclic preload and acute overload responses of chondral explants [34].
- High concentrations of glucosamine–chondroitin sulfate have an effect on the mechanical properties in an in vitro model [34].
- Glucosamine sulfate restrains the TNFα-mediated up-regulation of MMP-3 in bovine nucleus pulposus intervertebral disc cells [39].
- Glucosamine provides a protective role against TNFα, an early mediator of disc degeneration [39].
Omega-3 Polyunsaturated Fatty Acids¶
- Supplementation with omega-3 PUFAs for 3-4 months reduces patient-reported joint pain intensity [8].
- Supplementation with omega-3 PUFAs for 3-4 months reduces minutes of morning stiffness [8].
- Supplementation with omega-3 PUFAs for 3-4 months reduces the number of painful and/or tender joints [8].
- Supplementation with omega-3 PUFAs for 3-4 months reduces NSAID consumption [8].
- Supplementation of n-3 PUFAs is effective to relieve pain and improve joint function in patients with osteoarthritis [19].
- EPA supplementation could offer a promising strategy for preventing post-traumatic osteoarthritis progression following acute cartilage injuries [35].
Collagen and Other Supplements¶
- Adjuvant oral supplementation containing collagen, hyaluronic acid, chondroitin sulfate, and plasma proteins may increase the efficacy of physical therapy by shortening the time needed to return to pre-injury activity [5].
- Adjuvant oral supplementation containing collagen, hyaluronic acid, chondroitin sulfate, and plasma proteins may increase the efficacy of physical therapy by reducing analgesic consumption [5].
- An eight-week collagen-based supplement had a positive effect on pain levels in patients with meniscopathy [24].
- An eight-week collagen-based supplement had a positive effect on quality of life levels in patients with meniscopathy [24].
- An eight-week collagen-based supplement had a positive effect on some functional test results in patients with meniscopathy [24].
- Calcium supplements may appear to improve fracture healing of osteoporotic bone [16].
- Calcium supplements failed to improve strength in a rat osteoporotic model of fracture healing [16].
- Patients do not benefit from creatine supplementation during the first 12 weeks of rehabilitation after ACL reconstruction [28].
- Intra-articular injections of hyaluronic acid supplemented with CCL25 attenuate osteoarthritis in a guinea pig model [37].
- Supplementation with increasing concentrations of insulin-like growth factor-I enhances chondrocyte matrix synthesis [38].
- Supplementation with insulin-like growth factor-I may provide a means to enhance chondrocyte phenotypic stability and function during transplantation grafting procedures [38].
- The combination of anabolic growth factors and catabolic blockers improves the preservation of proteoglycan content of cartilage explants exposed to the depleting effects of IL-1 [40].
General Considerations¶
- Because of the lack of robust efficacy and safety data, peptide supplements should not currently be recommended as a replacement or adjunct for existing orthopaedic standard of care [1].
- The appropriate use of some supplements can benefit the athlete [12].
- Some supplements may harm the athlete’s health, performance, and/or livelihood and reputation if an antidoping rule violation results [12].
What the Evidence Shows¶
Perioperative and Postoperative Supplementation¶
- Protein supplementation is a low-cost intervention that is easy to incorporate into perioperative management, and the beneficial effects on muscle strength could potentially reduce the risk of longer-term complications, such as falls and periprosthetic fracture [18].
- Nutrition consultation and perioperative supplementation with amino acids and micronutrients are 2 readily available interventions that orthopaedic surgeons can select for malnourished patients [22].
- Oral nutritional supplementation and dietetic assistance represent low-risk interventions that may improve morbidity and mortality in older people with hip fractures [23].
- The use of the low-cost commercially available amino acid supplement resulted in fewer overall complications postoperatively and was a low-risk intervention for their patient population [26].
- Integrating targeted nutrition into prehabilitation pathways may help reduce complications and support faster functional gains in total joint arthroplasty [29].
- A comprehensive balanced nutrition supplement resulted in lower complication rates and mortality at 120 days postoperatively in patients with hip fractures [30].
- Perioperative nutritional optimization has been associated with improved outcomes for patients undergoing spine surgery, but additional investigation is needed to determine effective perioperative nutritional protocols [47].
Osteoarthritis and Joint Health¶
- The excellent safety profile of glucosamine and chondroitin sulfate should be discussed with patients, and they may serve a role as an initial treatment modality for many OA patients [4].
- The evidence supports efficacy in reducing pain, improving function, and possibly regulating joint damage when using non-steroidal anti-inflammatory drugs and glucosamine sulfate for knee osteoarthritis [7].
- While glucosamine sulfate has potential to relieve pain and improve function with low side effects, unanswered questions regarding long-term effects and dosage preclude a definitive endorsement, and the lack of substantial evidence currently prevents a ringing endorsement of these agents [11].
- Oral chondroitin is more effective than placebo on relieving pain and improving physical function, while glucosamine showed effect on stiffness outcome in osteoarthritis [43].
- Supplementation with omega-3 PUFAs for 3-4 months reduces patient reported joint pain intensity, minutes of morning stiffness, number of painful and/or tender joints, and NSAID consumption [8].
- Collagen peptides provide significant pain relief in patients with knee osteoarthritis compared to those who received placebo [45].
Musculoskeletal Injury and Rehabilitation¶
- Adjuvant oral supplementation containing collagen, hyaluronic acid, chondroitin sulfate, and plasma proteins may increase the efficacy of physical therapy by shortening the time needed to return to pre-injury activity and the analgesic consumption after ACL reconstruction [5].
- Restoration of the distal vasti muscle mass and knee extension muscle strength with resistance training is promoted further by protein-containing nutrient supplementation immediately after single exercise sessions in ACL patients [20].
- An eight-week collagen-based supplement had a positive effect on pain and quality of life levels and some functional test results in patients with meniscopathy [24].
- Bovine colostrum supplementation resulted in approximately 4 lower Oswestry Disability Index (ODI) scores than the control group over the 90-day study period, indicating improved physical function in adults with traumatic peri-trochanteric femoral fracture [46].
General Nutritional Principles and Specific Agents¶
- Specific nutritional supplementation alone might benefit geriatric patients, especially relevant for those who are unable to exercise [2].
- Calcium supplements may appear to improve fracture healing of osteoporotic bone but failed to improve strength in a rat osteoporotic model [16].
- With protein supplementation, protein intakes at amounts greater than ~1.6 g/kg/day do not further contribute resistance training-induced gains in fat-free mass in healthy adults [25].
- The appropriate use of some supplements can benefit the athlete, but others may harm the athlete’s health, performance, and/or livelihood and reputation if an antidoping rule violation results [12].
- Peer-reviewed scientific research often fails to support the efficacy of amino acids marketed as ergogenics for enhancing athletic performance [49].
Practical Considerations¶
Perioperative and Postoperative Supplementation¶
- Protein supplementation is a low-cost intervention that is easy to incorporate into perioperative management for total knee arthroplasty [18].
- The use of a low-cost commercially available amino acid supplement resulted in fewer overall complications postoperatively and was a low-risk intervention for the patient population [26].
- A comprehensive balanced nutrition supplement resulted in lower complication rates and mortality at 120 days postoperatively for hip fracture patients [30].
- Nutrition consultation and perioperative supplementation with amino acids and micronutrients are two readily available interventions that orthopaedic surgeons can select for malnourished patients [22].
Osteoarthritis and Joint Health¶
- Evidence supports the efficacy of glucosamine sulfate in reducing pain, improving function, and possibly regulating joint damage in knee osteoarthritis [7].
Specific Injury and Rehabilitation¶
- Adjuvant oral supplementation containing collagen, hyaluronic acid, chondroitin sulfate, and plasma proteins may increase the efficacy of physical therapy by shortening the time needed to return to pre-injury activity and reducing analgesic consumption after anterior cruciate ligament reconstruction [5].
General Considerations and Limitations¶
- Calcium supplements may appear to improve fracture healing of osteoporotic bone but failed to improve strength in a rat model [16].
- The appropriate use of some dietary supplements can benefit the athlete, but others may harm the athlete’s health, performance, and/or livelihood and reputation if an antidoping rule violation results [12].
Key Evidence¶
- [L5] Because of the lack of robust efficacy and safety data, peptide supplements should not currently be recommended as a replacement or adjunct for existing orthopaedic standard of care. [1] (10.1177/03635465261464420)
- [L1] This study shows proof-of-principle that specific nutritional supplementation alone might benefit geriatric patients, especially relevant for those who are unable to exercise. [2] (10.1016/j.jamda.2015.05.021)
- [L1] While effects on muscle strength and function are mixed, intravenous supplementation offers benefits. [3] (10.1186/s13018-025-05847-4)
- [L2] The excellent safety profile of these supplements should be discussed with patients, and they may serve a role as an initial treatment modality for many OA patients. [4] (10.1016/j.arthro.2008.07.020)
- [L1] Adjuvant oral supplementation may increase the efficacy of physical therapy by shortening the time needed to return to pre-injury activity and the analgesic consumption. [5] (10.1177/2325967118s00040)
- [L4] The evidence supports efficacy in reducing pain, improving function, and possibly regulating joint damage. [7] (10.1186/s12891-022-06046-6)
- [L1] Supplementation with omega-3 PUFAs for 3-4 months reduces patient reported joint pain intensity, minutes of morning stiffness, number of painful and/or tender joints, and NSAID consumption. [8] (10.1016/j.pain.2007.01.020)
- [L1] CEAA supplementation has a protective effect against common complications and early skeletal muscle wasting after operative fixation of extremity and pelvic fractures. [9] (10.2106/jbjs.21.01014)
- [L5] The authors conclude that while glucosamine sulfate has potential to relieve pain and improve function with low side effects, unanswered questions regarding long-term effects and dosage preclude a definitive endorsement, and the lack of substantial evidence currently prevents a ringing endorsement of these agents. [11] (10.5435/00124635-200109000-00009)
- [Paper] The appropriate use of some supplements can benefit the athlete, but others may harm the athlete’s health, performance, and/or livelihood and reputation (if an antidoping rule violation results). [12] (10.1136/bjsports-2018-099027)
- [L4] Nutritional supplementation has been shown to markedly reduce hospital costs by reducing rates of ICU admissions, hospital-associated complications, and hospital-acquired infections. [14] (10.5435/jaaos-d-23-00300)
- [L4] If the cost is not prohibitive, these products may be considered reasonable treatment options as part of a multimodal approach for symptomatic primary osteoarthritis. [15] (10.1016/j.jhsa.2013.05.017)
- [Paper] Therefore, calcium supplements may appear to improve fracture healing of osteoporotic bone but failed to improve strength. [16] (10.1002/jor.21180)
- [L5] Protein supplementation is a low-cost intervention that is easy to incorporate into perioperative management, and the beneficial effects on muscle strength could potentially reduce the risk of longer-term complications, such as falls and periprosthetic fracture. [18] (10.2106/jbjs.22.01357)
- [L1] Supplementation of n-3 PUFAs is effective to relieve pain and improve joint function in patients with OA. [19] (10.1186/s13018-023-03855-w)
- [L1] The results from this study demonstrate that restoration of the distal vasti muscle mass and knee extension muscle strength with resistance training is promoted further by protein-containing nutrient supplementation immediately after single exercise sessions. [20] (10.1002/jor.20147)
- [L1] Protein supplementation appears to have beneficial effects on mitigating muscle atrophy in the postoperative period following ACLR, THA, TKA, and surgical treatment of hip fracture. [21] (10.1177/2325967123s00326)
- [L5] Nutrition consultation and perioperative supplementation with amino acids and micronutrients are 2 readily available interventions that orthopaedic surgeons can select for malnourished patients. [22] (10.2106/jbjs.rvw.23.00242)
- [L1] However, oral nutritional supplementation and dietetic assistance represent low-risk interventions that may improve morbidity and mortality. [23] (10.1097/corr.0000000000000658)
- [L1] The results of the study showed that the eight-week collagen-based supplement had a positive effect on pain and quality of life levels and some functional test results in patients with meniscopathy. [24] (10.1186/s12891-024-08244-w)
- [L1] With protein supplementation, protein intakes at amounts greater than ~1.6 g/kg/day do not further contribute RET-induced gains in FFM. [25] (10.1136/bjsports-2017-097608)
- [L5] The use of the low-cost commercially available amino acid supplement resulted in fewer overall complications postoperatively and was a low-risk intervention for their patient population. [26] (10.2106/jbjs.22.00078)
- [L1] The results demonstrate that patients do not benefit from creatine supplementation during the first 12 weeks of rehabilitation after ACL reconstruction. [28] (10.1177/0363546503261731)
- [L4] Integrating targeted nutrition into prehabilitation pathways may help reduce complications and support faster functional gains. [29] (10.1016/j.arth.2026.03.088)
- [L1] The comprehensive balanced nutrition supplement resulted in lower complication rates and mortality at 120 days postoperatively. [30] (10.1097/01.blo.0000224054.86625.06)
- [L4] Despite these benefits, substantial barriers like inconsistent protocols and patient nonadherence remain, highlighting the need for multifactorial assessment and standardization of multidisciplinary nutritional protocols. [32] (10.5435/jaaos-d-25-00757)
- [Paper] These data show a biological action of high concentrations of this supplement and its effect on the mechanical properties in this in vitro model. [34] (10.1002/jor.20757)
- [L5] The findings suggest that EPA supplementation could offer a promising strategy for preventing PTOA progression following acute cartilage injuries. [35] (10.1186/s13018-024-05081-4)
- [Paper] These data suggest that intra-articular injections of HA supplemented with CCL25 attenuates OA. [37] (10.1002/jor.24312)
- [Paper] Supplementation with increasing concentrations of insulin-like growth factor-I enhances chondrocyte matrix synthesis and may provide a means to enhance chondrocyte phenotypic stability and function during transplantation grafting procedures. [38] (10.1002/jor.1100170403)
- [L5] This is the first report providing evidence for the protective role of glucosamine against this early mediator of disc degeneration that could support the potential usage of this molecule as a treatment for preventing disc degenerative disorders. [39] (10.1002/jor.22725)
- [Paper] The beneficial effects of the combination of anabolic growth factors and catabolic blockers were evident in improved preservation of proteoglycan content of cartilage explants exposed to the depleting effects of IL-1. [40] (10.1016/j.orthres.2004.06.020)
- [L1] Oral chondroitin is more effective than placebo on relieving pain and improving physical function, while glucosamine showed effect on stiffness outcome. [43] (10.1186/s13018-018-0871-5)
- [L1] Our findings demonstrate significant pain relief in patients with knee osteoarthritis who received collagen peptides compared to those who received placebo. [45] (10.1186/s13018-023-04182-w)
- [L1] Additionally, patients in the colostrum group had approximately 4 lower Oswestry Disability Index (ODI) scores than the control group over the 90-day study period, indicating improved physical function. [46] (10.1016/j.injury.2023.111253)
- [L4] Perioperative nutritional optimization has been associated with improved outcomes for patients undergoing spine surgery, but additional investigation is needed to determine effective perioperative nutritional protocols. [47] (10.5435/jaaos-d-24-01101)
- [Paper] The article highlights that while amino acids are marketed as ergogenics, peer-reviewed scientific research often fails to support their efficacy for enhancing athletic performance. [49] (10.1016/s0278-5919(05)70173-3)
References¶
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