does black seed oil help glutathione seed's immune-health benefits get scientific validation | Nutritional Outlook Black Seed Oil 3% Thymoquinone

Here's the catch: rabbit skin is more sensitive than human skin and throws a lot of false positives

Signs and symptoms of vitamin B12 deficiency can include fatigue, pale skin, headaches, shortness of breath, fast heartbeat, gastrointestinal issues, mouth inflammation, paresthesias (abnormal sensations), decreased cognitive ability, depression, muscle weakness, imbalance and incoordination, vision problems, and erectile dysfunction

Mechanism-informed patient selection Biomarker-based stratification: Identifying patients most likely to respond based on mechanistic markers

Science 2017, 356 (6335), 320323

it's about the entire experimental ecosystem