Here are some of the newest therapy options for treating ED and the science behind how they work
Peer review Peer review information Communications Biology thanks Markus Seeger and the other, anonymous, reviewer(s) for their contribution to the peer review of this work

Although the precise rate of absorbability relies on the individuals gastrointestinal health, below are the top food sources that give vitamin B12 (with portions based upon 2.4 milligrams daily for adults): Beef as well as poultry liver (1) 3 ounces: 81 milligrams (3,375% RDA) Salmon (2) 1 filet (108 grams): 19.5 milligrams (812%) Herring (3) 1 filet (143 grams): 18.7 milligrams (779%) Mackerel (4) 3 ounces: 15.3 milligrams (637%) Sardines (5) 1 cup: 13.3 milligrams (554%) Tuna (6) 3 ounces: 9.3 milligrams (385%) Trout (7) 1 filet: 9.1 milligrams (379%) Organic yogurt (8) 1 container of ordinary Greek yogurt (170 grams): 1.3 mg (53%) Turkey (9) 3 ounces: 1.1 milligrams (43%) Raw milk (10) 1 mug: 1 milligrams (41%) Beef tenderloin (11) 3 ounces: 0.9 milligrams (38%) Lamb (12) 3 ounces: 0.8 milligrams (34%) Tips on How to Add More Vitamin B12 to Your Diet Regimen with Food

What GHK-Cu actually is GHK-Cu was first isolated from human plasma albumin in 1973 by biochemist Loren Pickart, who noticed that liver cells from older donors began functioning more like younger tissue when exposed to plasma from younger donors [1,2]
hence, addition of intrinsic factor in the second step results in an increase in vitamin B 12 absorption (over the baseline established in the first)