Supplement Science Blog | Everbright Labs

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Spermidine research: Where it comes from and what studies show

Spermidine research: Where it comes from and what studies show

Your body’s spermidine supply doesn’t come from food alone: the body makes spermidine from putrescine, and gut bacteria can produce it too. Foods such as wheat germ, soya, aged cheese and mushrooms also provide it. Sperm…

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Spermidine in Foods and Supplements: Sources, Benefits, and Safety

Spermidine in Foods and Supplements: Sources, Benefits, and Safety

Spermidine is a naturally occurring polyamine found in food and produced by the body. Wheat germ is a particularly rich food source, containing 24 to 35 mg per 100 g, while soya beans contain 20.7 mg per 100 g. Understan…

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Wheat germ extract spermidine: sources, effects and safety

Wheat germ extract spermidine: sources, effects and safety

In preclinical research, spermidine supplementation extended lifespan by approximately 10% in mice; this is a finding in animals, not a human outcome. Spermidine is a naturally occurring polyamine, and wheat germ extract…

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Spermidine supplement clinical studies on safety and evidence

Spermidine supplement clinical studies on safety and evidence

The early clinical safety findings are reassuring, though limited in duration. In a placebo-controlled trial, 37 healthy men aged 50-70 received 40 mg/day of high-purity spermidine trihydrochloride for up to 28 days, wit…

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Spermidine and Ageing: Levels, Food Sources and Health Links

Spermidine and Ageing: Levels, Food Sources and Health Links

A molecule involved in cellular maintenance may offer useful clues about how we age. Spermidine is a naturally occurring polyamine that helps maintain healthy cells, and the connection between spermidine and healthy agei…

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NAD+ for Anti-Ageing: Potential Benefits and What Evidence Shows

NAD+ for Anti-Ageing: Potential Benefits and What Evidence Shows

A higher NAD+ level is not the same as proven slower ageing. The benefits of NAD+ for anti-ageing remain uncertain: NAD+ levels tend to decline with age, and supplements may support the body’s production of it, but resea…

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Science-Backed Longevity Stack: How to Build a Focused, Evidence-Led Routine

Science-Backed Longevity Stack: How to Build a Focused, Evidence-Led Routine

A longer supplement list can look more scientific, but quantity doesn’t show whether a routine is supported by good evidence. If conflicting recommendations have left you unsure which ingredients matter, or whether study…

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Cellular Energy Decline Over 30: What Changes and What Helps?

Cellular Energy Decline Over 30: What Changes and What Helps?

Thirty isn’t a biological cliff, and feeling more tired in your thirties doesn’t prove your cells are running out of energy. Research suggests that mitochondrial function can vary with age and activity levels. A June 202…

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NAD+ for Healthy Ageing: What the Evidence Says in 2026

NAD+ for Healthy Ageing: What the Evidence Says in 2026

Could raising NAD+ in cells help us age well, or does that go further than the evidence? Interest in nad+ for healthy aging is growing, but the science draws an important distinction: oral precursors such as nicotinamide…

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