Sardines and Super-Longevity | ft' Professor Dominic D’Agostino

Melatonin Usage and Effects
📌 Professor Dagino has taken melatonin since 1993 and believes it aids sleep initiation and maintenance, having studied its neuroprotective effects in graduate school.
🧠 Research indicated melatonin possesses antioxidant, anti-inflammatory, and anti-cancer effects in neurons by crossing the blood-brain barrier and reducing superoxide production.
🚫 Claims that melatonin suppresses natural melatonin production or sex hormones in humans lack published evidence; studies on hibernating animals might be the source of hormonal harm rumors.
💊 A common dosage is 2.5 mg sublingual, taken to leverage its potential neuroprotective properties rather than solely for sleep induction.

Creatine for Brain Health and Longevity
🔬 Creatine is the most studied nutritional supplement, now emphasizing benefits beyond muscle strength, including mitigating mild cognitive impairment.
🧠 Higher doses (10-20 g/day) may spill over circulation after muscle/liver saturation, allowing more creatine to cross the blood-brain barrier, beneficial during sleep deprivation or fatigue.
🍽️ To mitigate GI upset from high doses, take creatine with food (spaced away from coffee) and ensure adequate water intake; vegan/vegetarian individuals often see massive responses.
🥇 For better tolerance, sourcing high-quality micronized creatine like Creapure from Germany is recommended, though taking 5g with food has proven effective for the host.

Longevity Factors and Biomarker Focus (Case Study: 117-Year-Old Woman)
🧬 The study of a 117-year-old showed short telomeres did not hinder longevity; her epigenetic age and mitochondrial function were youthful.
🧘‍♀️ Key non-genetic longevity multipliers included mindset: curiosity, gratitude, social connection, and light exercise like gardening, which amplify biochemistry.
🔥 Inflammation markers (HSCRP) may have a higher hazard ratio for risk than isolated LDL levels, suggesting a focus bias in clinical medicine towards easily treatable markers.
🐟 Fish consumption, especially sardines, is linked to higher creatine levels and low heavy metal exposure (sardines and chub mackerel being among the lowest in mercury).

Sardine Fasting Protocol
🐟 Sardines are considered a "perfect food" for achieving maximum nutrition in minimum calories, making them ideal for a modified fasting protocol.
💪 Sardine fasting offers muscle protection during fasting via four mechanisms: low-calorie protein source, ketosis, potential FGF-21 response (from protein restriction), and omega-3s.
⚖️ A suggested dosing is one can of sardines per 50 lbs of body mass daily, ideally split into two meals (e.g., 4 cans/day for a 200 lb person, analogous to a 2000-calorie/day modified fast).
🦴 Optimal intake involves sardines packed in olive oil with the bone and skin included, providing anti-inflammatory and anti-catabolic benefits that enhance fasting effects.

Key Points & Insights
➡️ Melatonin's primary benefit for Professor Dagino is its role as a cheap neuroprotective antioxidant agent crossing the blood-brain barrier, not just a sleep aid.
➡️ Individuals experiencing GI upset with standard creatine should try taking 5g with food or switching to the Creapure source.
➡️ Social connection and purpose appear to be consistent, critical factors in the longevity of supercentenarians, potentially mitigating negative biochemical impacts.
➡️ Focusing solely on out-of-range biomarkers like LDL may ignore more critical markers like HSCRP due to systemic study bias favoring targetable interventions.

📸 Video summarized with SummaryTube.com on Dec 10, 2025, 12:39 UTC