Supplements

This review considered beetroot juice supplementation for physical performance and cognitive function in healthy adults and athletes. The authors describe potential performance benefits, but evidence for improved cognition remains inconclusive. Results also differ by training level, with mixed findings in elite athletes. The abstract does not demonstrate longer life or healthier aging.

Keep in mind: The abstract gives no study counts, search details, effect estimates, comparator descriptions or follow-up lengths. That prevents an assessment of how large, consistent or durable any performance benefits might be.

Across randomized trials, milk-protein supplementation increased lean body mass and fat-free mass while reducing fat mass, body-fat percentage, and waist size. However, the analysis did not identify clear effects on muscle mass or overall body weight. These findings describe changes in measured body composition, without establishing broader health or performance benefits.

Keep in mind: Participant characteristics, comparison treatments, and trial lengths are missing from the abstract, limiting judgments about who the pooled results apply to and for how long.

The review identified plant extracts and isolated compounds that interfered with breast cancer cell growth and other cell behaviors in laboratory experiments. Some also triggered cell death. These are early research observations, not evidence that consuming the plants treats breast cancer, prevents its spread or lowers the chance of recurrence in humans.

Keep in mind: This abstract-based explanation covers cell-line research. The abstract does not supply clinical outcomes, detailed toxicity findings or experimental comparison details, so effectiveness and safety in people cannot be inferred.

The pooled trials found higher lower-spine bone density and lower parathyroid hormone levels with probiotic or synbiotic supplements. Total hip density and other measured bone markers showed no statistically significant improvement. These results concern bone density and laboratory measurements; the abstract does not report whether supplementation reduced fractures.

Keep in mind: This abstract-based summary cannot identify which people or products the result applies to: participant characteristics, supplement formulations, treatment lengths and comparator details are missing.

The review found no eligible studies that could answer whether protein supplements help children with cancer. It therefore drew on research in children with other serious illnesses, where observational improvements were not matched by clear changes in the randomized trial. These indirect findings cannot establish either benefit or safety in pediatric cancer care.

Keep in mind: All assessed outcomes were graded very low certainty. Evidence from other illnesses cannot establish what protein supplementation does for children with cancer, and the abstract gives little detail about adverse events or intervention schedules.

Creatine supplementation alongside resistance training increased fat-free mass compared with placebo in the pooled analysis. Experienced lifters had a numerically larger gain than novices, but the difference between these groups was not statistically significant. This abstract-based result does not establish that training experience determines the benefit or that higher doses produce better outcomes.

Keep in mind: The abstract omits treatment-duration ranges, participant characteristics and detailed dose-response estimates. Fat-free mass was a body-composition outcome; corresponding estimates for strength or physical function are not provided.

In people with dementia, the broad clinical assessment favored choline alphoscerate over citicoline at treatment's end. The review did not detect statistically significant differences on memory or word-fluency tests, or in dropout rates. The broader score advantage does not establish benefit across every cognitive outcome or applicability to people without dementia.

Keep in mind: This summary relies on the abstract, which omits treatment lengths, doses and certainty ratings. Dropout rates cannot establish comprehensive safety; nonsignificant results do not prove equivalence.

Both extract groups showed decreases in fasting plasma glucose and HbA1c from their starting levels. Treatment assignment also predicted changes in these markers in regression analyses. The abstract does not report the direction or size of a direct placebo comparison, so these results cannot establish added benefit over placebo or an improvement in health outcomes.

Keep in mind: The abstract provides no effect sizes, confidence intervals, or adverse-event results. Its conclusion describes safety favorably, but the supplied details do not allow an independent assessment of harms or a comparison between doses.

The analysis ranked Withania somnifera highest for quality of life and several symptom and functioning outcomes. The reported outcomes concern patients' experiences during breast cancer care. Rankings indicate how treatments compared within the analysis; they do not establish a dependable treatment choice, and the authors call for further clinical validation.

Keep in mind: This abstract-based assessment cannot resolve treatment duration, the studies supporting each comparison, safety or risk of bias. Those details matter when interpreting the reported standardized effects and deciding how much confidence to place in the rankings.

The pooled trials reported statistically significant reductions in systolic and diastolic blood pressure with garlic interventions compared with controls. However, the abstract labels the estimates only as effect sizes, leaving their clinical magnitude unclear. Adverse reactions were slightly more frequent with garlic, but that difference was not statistically significant; stomach discomfort and bad breath were commonly reported.

Keep in mind: This abstract-based account cannot translate the unspecified effect-size scale into blood-pressure units. Duration reporting across trials is incomplete, and participant numbers and detailed comparisons are missing. Subgroup findings cannot establish an optimal dose or duration.

Protein supplements did not show increases in muscle mass, strength or physical performance among healthy older adults or older people overall. Results differed for people with long-term conditions, where evidence supported at least small gains in muscle mass and strength. These subgroup findings do not establish a general benefit for all older adults.

Keep in mind: The abstract does not report supplementation doses, intervention lengths, comparator regimens or numerical effect estimates. It therefore cannot establish a useful regimen or show how large the reported benefits were in practical terms.

Short-term rhodiola was linked to improvements in some resistance tests in trained adults, including leg press strength compared with both the no-capsule control and placebo. Cycling results were inconsistent. The abstract does not establish that either dose is better overall, and several reported benefits are comparisons with taking no capsules rather than with placebo.

Keep in mind: The abstract omits the actual supplement doses and detailed placebo comparisons for several outcomes. Reported significance in separate dose arms does not establish a difference between those doses.

The trial reported increased activation of an inflammation-related receptor after marine fatty acid supplementation, alongside changes in inflammatory markers. Both groups also followed a calorie-restricted diet and improved in body composition and biochemical measures. The abstract does not show that the receptor changes led to better symptoms, fewer illnesses or lasting metabolic benefits.

Keep in mind: The abstract gives no numerical effect sizes and does not clearly identify the comparator for every marker change. Shared calorie restriction also means improvements seen in both groups cannot be attributed specifically to marine supplements.

This review did not find statistically significant improvements in disease activity, erythrocyte sedimentation rate or C-reactive protein with curcumin or Curcuma longa extract. The confidence intervals allowed for different possible effects, and trial results were highly inconsistent. The findings leave the value of these supplements as additions to care uncertain; they do not prove no effect.

Keep in mind: Results differed substantially across trials, and the abstract does not report doses or treatment durations. It also does not separate disease-specific results, limiting what can be concluded for rheumatoid arthritis or lupus individually.

The analysis reported a more favorable liver and reproductive toxicity profile for ashwagandha root than for other plant parts. However, it combined literature review with computer predictions, rather than establishing safety through a clinical trial. Its conclusions cannot confirm that a particular supplement is safe for users or effective for treating any condition.

Keep in mind: The abstract provides no clinical event rates, exposure doses or validation results for the prediction models. The authors call for experimental and clinical confirmation, so its favorable assessment should not be read as proof of safety.

The abstract reports that psyllium lowered LDL and total cholesterol across the included trials. Changes in triglycerides and HDL cholesterol were not statistically significant, so those effects remain uncertain. These are findings about blood lipid measurements; the abstract does not report whether supplementation changed heart attack, stroke or other cardiovascular outcomes.

Keep in mind: Results differed substantially between trials. The abstract omits units for its pooled lipid estimates, control conditions and follow-up lengths, so the size and practical meaning of the changes cannot be fully assessed.

In people with type 2 diabetes, this review reported benefits for several metabolic measurements across vitamin, exercise and combined interventions. However, vitamin supplementation alone did not significantly improve glycated hemoglobin, and neither vitamins alone nor exercise alone significantly reduced fasting glucose. The reported dose rankings lack enough comparative detail to establish an optimal regimen.

Keep in mind: The abstract omits study counts, participant totals, effect sizes and confidence intervals. Its dose summaries do not clearly identify the vitamin being measured, and significance within subgroups cannot establish that one dose outperforms another.

The review reports significant strength gains after creatine supplementation. It also describes differences across training experience, dose categories and training intensity, while age comparisons remained inconclusive. However, the abstract gives no effect estimates or details of control conditions, so it cannot show how large the gains were or establish a preferred dosing or training strategy.

Keep in mind: The abstract omits the number and design of included studies, participant totals, effect estimates and dose definitions. Its broad conclusion cannot establish the size of the strength gain or a reliable dose ranking.

The dileucine formula and branched-chain amino acids produced greater leucine retention than collagen after exercise, but did not differ significantly from each other. Urinary estimates of muscle protein breakdown also did not differ across drinks. These short-term measures do not establish gains in muscle size, strength, or longer-term training outcomes.

Keep in mind: This small study measured acute markers, with additional exploratory experiments in cells exposed to participants' serum. Its results cannot establish long-term muscle growth in people.

Curcumin supplementation was linked to lower fasting glucose, glycated hemoglobin, and some lipid measures in the pooled trials. Significant changes were not found for total cholesterol, blood pressure, body mass index, or the reported kidney markers. These are metabolic measurements; the abstract does not establish fewer diabetes complications or long-term health benefits.

Keep in mind: Results varied substantially between studies. The abstract does not specify comparison treatments or study durations, and the authors identify long-term effectiveness and safety as unresolved.

The pooled results favored probiotics for cognitive symptoms and depressive symptoms in patients with depression. However, substantial variation between trials makes the consistency of these findings uncertain. The abstract does not establish which probiotic preparations produced the results, how long improvements lasted, or how noticeable they were in everyday life.

Keep in mind: This abstract-based summary cannot assess the individual trials. The abstract omits probiotic preparations, treatment durations and safety results, while substantial variation between studies limits how well the pooled estimate represents a consistent response.

The included rodent experiments reported favorable changes in outcomes such as sperm DNA integrity and DNA methylation after herbal treatments. The studies used different exposures and preparations, so the abstract does not identify a single intervention with an established effect. These findings do not demonstrate cancer prevention, protection across generations in humans or a reason to use herbal products.

Keep in mind: The abstract omits control conditions, animal counts, treatment details and effect sizes. Its broad claims about inherited mutation risks are not accompanied by enough outcome detail to assess them, and human applicability remains unconfirmed.

Some cognitive test scores favored probiotic supplementation, but the review describes the evidence as highly uncertain. The results concern performance on specific tests; the abstract does not establish improvements in everyday thinking or functioning. Adverse-event findings also remained uncertain, so this review does not provide a firm conclusion about benefit or safety.

Keep in mind: The abstract uses both low and very low certainty language for cognitive findings, making outcome-specific confidence difficult to interpret. It also omits control conditions and participants' underlying cognitive diagnoses.

The review reported better endurance and aerobic capacity measures with Cordyceps sinensis, while Ganoderma lucidum mainly changed blood measurements. These are different kinds of results: changes in blood markers do not establish better recovery or performance. The abstract gives statistical significance without effect sizes, leaving the practical importance of the reported differences unclear.

Keep in mind: The abstract omits trial duration, comparator details, effect sizes and adverse-event results, so its broad claim that supplements are safe and effective cannot be assessed here.