Scientists say that high -dose almond dose could help protect your cells from oxidative damage while enhancing the natural defense systems of your body, but the benefits depend on the dose and how to make coconuts.
Study: The effect of supplementing almonds to oxidative stress biomarkers: Systematic review and meta-analysis of randomized control tests. Credit Picture: Shine.Graphics / Shutterstock
In a recent systematic review published in the magazine Scientific reportsThe researchers have been associated, composed and compose the results of eight clinical trials to ratify and clarify the effects of adult almonds.
Review findings reveal a dose-dependent relationship, where consumption of over 60 grams (g) of almonds daily has been observed to significantly reduce certain indicators g/day-broup).
These results support the role of almonds as a potential functional food for the management of oxidative stress, although the authors emphasize that more standardized tests are required prior to examining the recommendations for public health policy, given the high volatility of the results and the effects of
Background
The cells are under constant attack by reactive oxygen species (ROS), unstable molecules known to damage lipids, proteins and even DNA, resulting in mutations and related diseases. Oxidative stress is an imbalance between these devastating free radicals and the antioxidant body of the body, which is exacerbated by environmental pollution and poor behavior choices (eg, non -optimal diets and smoking).
Over time, this ROS -caused cell damage accumulates and has been recognized as the main cause of chronic diseases, including cardiovascular disease (CVDs), diabetes, cancers and neurodegenerative disorders.
Current oxidative stress research includes the assessment of biomarkers such as Milialdehyde (MDA) for lipid damage, 8-hydroxy-2′-deoxyguanosin (8-HODG) for DNA damage and antioxidants such as hyper-hyper-hypochemal patient. Despite surveillance and diagnostic techniques, the global weight of oxidative stress continues to increase.
Almonds (specifically, the fruits of Prunus amygdalus or Prunus dulcis Tree) are rich in protective antioxidant compounds, including vitamin E, polyphenols and healthy monounsaturated fats, making them a very promising dietary tool to combat oxidative stress. While the previous studies were encouraging, their limited sample sizes made findings confusing and constantly, demanding a comprehensive analysis of unification of their cumulative elements.
About criticism
This systematic review treats this knowledge gap by constituting and analyzing the data from various randomized controlled tests (RCTs) with the aim of quantifying the effect of almonds on oxidative stress. The review followed the preferred reference information for systematic revisions and Post-analyzes guidelines.
The integrated bibliography search included a customized search for keywords of many electronic scientific repository, including Scopus, Pubmed/Medline and science tissue from the start of the database to January 2025. Any RCTS or Crossover tests.
The exported data included estimates of basic biomarkers and analyzes have used a model of random results to collect the results and calculate the weighted average difference (WMD, total effect). Basically, subgroups analysis was carried out to determine whether the dose of almonds, in particular, less than or more than 60 grams daily, affected the observed results.
Review of findings
The title, abstract and full text examination identified eight high quality tests (five parallel RCTS and three intersection tests) that met the integration criteria (n = 424 participants). Summary statistics revealed that the populations of the study included were different, including healthy people, smokers and patients with chronic diseases. Almond interventions vary in dose, ranging from 5 to 168 grams daily and lasted between four and 24 weeks.
The results of meta-analysis have revealed that the antioxidant effects of almonds depend partly on the dose. While lower doses showed a minimal effect, completing 60 grams or more daily (~ 2 large handfuls) produced significant improvements to specific basic biomarkers, especially those that indicative of cellular damage (MDA and 8-OHDG).
MDA levels, lipid peroxidation product, decreased with a weighted average difference of -0.46 (p = 0.002) in high dose subgroup and 8 -Ohdg, DNA oxidative damage index, decreased by -5.83 (P <0,001). Επιπλέον, οι ενδογενείς αντιοξειδωτικές άμυνες του σώματος παρατηρήθηκαν ότι βελτιώθηκαν συνολικά, με τη δραστηριότητα του SOD να αυξάνεται κατά 2,02 (p = 0,008) στην συγκεντρωτική ανάλυση, αν και η υποομάδα> 60 g/day did not reach statistical significance.
Almond consumption also led to a small but significant decrease in uric acid levels (WMD = -0.64, p = 0.009), which the authors suggest may be related to the inhibition of the activity of xanthine oxidase, a basic source of uric acid and the species of reactionary oxygen. Its impact on glutathione peroxidase (GPX) was not statistically significant. Specifically, heterogeneity evaluations established a high degree of volatility in all studies for certain results (I2> 90%), suggesting that differences in study design, almond preparation (raw against roast, incorrectly rigid) Enzyme responses and interactions between fish and polygay affecting the enzyme. The microbial and systemic oxidative condition probably contributed to inconsistent results.
Conclusions
This systematic review and meta-analysis prove that almond supplementation can help manage oxidative stress, especially for some biomarkers, and that the benefits for MDA may be more evident in doses higher than 60 grams a day. All biomarkers did not respond in a dose dependent and SOD improvements were observed overall but not significantly in the high dose subgroup.
These findings support almond classification as possible functional food. However, the great volatility between studies highlights a critical need for future research. The authors require more standardized tests to identify the optimal dosage, duration and form of almonds to maximize their antioxidant benefits, ideally using consistent almond preparation methods and stratification of participants with basic levels.
