From Memios
The Longevity Letter
Practical writing and video on living strong and active into your 90s. No hype, no supplements to sell. Just what the evidence supports and what it looks like on an ordinary Tuesday.
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SupplementsVitamin E
Large trials have mostly failed to show benefit from vitamin E supplements, and several found harm.
2026-09-29 · 12 min read
SupplementsVitamin K2
The evidence is thin and much of the positive fracture data comes from Japanese trials of MK-4.
2026-09-29 · 12 min read
SupplementsWheatgrass and barley grass
Not supported by the research. Very little human trial evidence exists.
2026-09-29 · 8 min read
SupplementsWhey protein
What the trials support is protein supplementation in general alongside resistance training, not whey specifically.
2026-09-29 · 14 min read
SupplementsWhite mulberry leaf
The evidence that stands up best is short-term and about the meal, not the disease: a 2022 systematic review of randomised trials concluded that Morus alba can reduce post-prandial glucose and insulin.
2026-09-29 · 10 min read
SupplementsWhite willow bark
For short-term low back pain the evidence is moderate: Cochrane concluded that standardised daily doses of 120 mg or 240 mg of salicin are probably better than placebo for pain and rescue medication use over a few weeks.
2026-09-29 · 16 min read
SupplementsStreptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus
Well established. The best-supported effect is on lactose.
2026-09-29 · 7 min read
SupplementsYohimbe
Disputed. The evidence is contested rather than settled.
2026-09-29 · 12 min read
SupplementsZinc
Disputed. There are two separate stories here.
2026-09-29 · 23 min read