Omega-3 can clearly slow down biological aging in all age groups, according to a new study. The effect was even greater when combined with strength training and vitamin D.
The study, which was conducted by researchers at the University of Zurich, the Hospital University of Toulouse and Harvard University, among others, examined the effect of vitamin D, omega-3 and exercise on biological ageing.
In total, the DO-HEALTH study involved 2,157 participants from several European countries. The aim of the long-term study is to prevent healthy ageing and to study the effects of omega-3 and vitamin D.
Participants were divided into different groups, with some receiving vitamin D or omega-3 daily, while others received a placebo. In addition, strength training (30 minutes, three times a week) was compared with joint mobility training of the same duration.
By varying the combinations, the researchers were able to analyze both individual and combined effects, for example in those who received both vitamin D and omega-3.
The analysis, published in Nature Aging, shows that a daily intake of one gram of omega-3 for three years was able to slow biological aging by almost three months compared to those who did not take the supplement.
Effect the same regardless of age
In the group that combined omega-3, vitamin D and strength training, the effect was even greater, slowing down aging by almost four months. The combination also reduced the risk of invasive cancer by 61% and the risk of early osteoporosis by 39%.
The effect on biological ageing was the same regardless of gender, age or BMI.
Omega-3 fatty acids are mostly found in oily fish and are important for building and repairing cells, among other things. They can also affect blood pressure regulation, kidney function and the immune system.
In the next step, the researchers plan to include more participants to get a broader sample and study how different lifestyles affect the results.