The Cheap Vitamin Linked to Stronger Legs as You Age
A large British study of more than 5,000 adults aged 48 to 92 found that people with optimal blood vitamin C (50 µmol/L or higher) walked faster and stood from a chair more quickly than those with low levels. Women also had stronger height-adjusted grip, while men showed no grip link. Food-based vitamin C showed associations only in women, and not in a tidy pattern. The design is cross-sectional, so it can't prove vitamin C causes better function. Here's what the numbers show, what they don't, and why your blood level may be worth checking.
Fish Oil for Aging Muscles: What 14 Studies Actually Show
Fish oil is being pitched as armor for aging muscles, but what does the evidence actually say? A 2026 umbrella review pooled seven RCTs and seven meta-analyses in adults 55 and older. It found modest but measurable strength gains, with the clearest signal for lower-body strength and function. Grip strength, walking speed, and upper-body strength were far less certain, and heavy overlap among the studies means the evidence is shakier than it looks. Here is what it means, who it may help, and who should check with a doctor first.
Creatine Helped Women With Bad Knees Stand Up Better. Not Why You Think
Creatine is usually pitched at young lifters, but a randomized, double-blind trial tested it in postmenopausal women with knee osteoarthritis. After 12 weeks of leg training, the creatine group's timed-stands score rose from 15.7 to 18.1, while placebo barely moved (15.0 to 15.2). Creatine also improved stiffness, lean mass and quality of life. But pain relief and leg-press max strength were no better than placebo. Here's what the numbers show and who this might actually help.
Seaweed Fucoidan Boosted Grip Strength in Over-60s in 12 Weeks
Losing strength with age is one of the most common and least discussed parts of getting older, and resistance training isn't an option for everyone. A new 12-week randomized trial found that a low-molecular-weight seaweed fucoidan, taken at 1,650 mg per day, significantly improved grip strength and six-minute walk performance in adults over 60. Surprisingly, muscle mass didn't change, and adding BCAAs and vitamin D offered no extra benefit. The trial was small and tested a single branded product, so it's a promising lead rather than a verdict. Here's what the study found and what it means in practice.
Tongkat Ali: 400 mg for 5 Weeks Lifted Testosterone and Grip Strength
Tongkat Ali is one of the most-searched testosterone boosters on the internet, and a small pilot study gives it some real human data. Twenty-five active adults aged 57-72 took 400 mg of extract daily for 5 weeks, and both total and free testosterone rose, along with handgrip strength. Women's free testosterone climbed too, apparently because SHBG dropped. But there was no placebo group, so this is promising rather than proof. Here is what the study found, what it can't tell you, and how to approach it sensibly.