Model: Male Sprague-Dawley rats 
Dosage: 400 mg/kg of magnesium L-theanine and 600 mg/kg of nicotinamide riboside administered orally for 40 days

Scientists find that treating rats with magnesium L-theanine and nicotinamide riboside (NR) counteracts stress-induced metabolic, gut, and liver aging. 

Study conducted by researchers from Firat University in Turkey (image: turkeyuniversity.org)

Model: Naturally aged C57BL/6J mice

Can Intermittent Fasting Slow Down Gut Aging? New Research Suggests So

A new study provides data suggesting compromised intestinal function with age and that fasting for short periods promotes intestinal regeneration and function in aged mice.

(A dysfunctional intestinal barrier that leaks harmful substances and bacteria into circulation develops with age | The Amino Company)

Alternate-day fasting, a form of intermittent fasting, reverses age-related intestinal barrier leakage in old mice.

Aging &amp; Longevity

Model: Male Wistar rats (4-month-old young rats and 24-month-old old rats)
Dosage: Oral administration of the trypsin inhibitor tranexamic acid in drinking water for 14 days at a minimum dose of 0.39 g/kg/day after consuming about 40 mL/day of water

Newly Proposed Aging Mechanism: Digestive Enzymes May Be Eating Us from Within

University of California, San Diego researchers show digestive enzyme leakage from the intestines contributes to organ damage in old rats, offering what may be a new way to explain aging.

(Principal investigator, Geert Schmid-Schönbein | voiceofsandiego.org)

Bacteria from a Young Gut Reverse Age-Related Inflammation

Fecal matter transplants from young mice could positively affect inflammation in the eyes, brains, and intestines of aged mice by affecting gut microbiota composition.

Gut bacteria from young mice has been shown to reverse age-related inflammation in mice.

Search Result: Leaky gut

New Research: Magnesium, L-Theanine, NAD+ Combo Counters Stress Aging

Can Intermittent Fasting Slow Down Gut Aging? New Research Suggests So

Newly Proposed Aging Mechanism: Digestive Enzymes May Be Eating Us from Within

Study Shows Gut Bacteria from Young Mice Reverses Age-Related Inflammation