e is a method that can be used in emergencies, and in developing world circumstances, when IV is unavailable or unsuitable. Nurses can quickly be trained to mix 15-30 g of sodium ascorbate in 250-500 ml clean water, and give it by enema. It can be safely and effectively used in children. An enema also removes from the bowel material that may be challenging. This has been done successfully with aboriginal people in the Australian outback.
In healthy people, liposomes help the absorption of oral vitamin C; in some circumstances this is also true for sick people. However, we need to dispel some popular myths.
In a healthy person, higher blood levels (about 600 microM/L) can be achieved using liposomal vitamin C compared with standard ascorbic acid (about 250 microM/L). We were the first to demonstrate this fact experimentally.[vi] However, the two absorption methods are different and if both are used together the resultant plasma levels are additive (something like 600 + 250 = 850 microM/L). Since ascorbic acid is much cheaper than liposomal vitamin C, it is cost effective for a healthy person to start with ascorbic acid and top up with liposomes as required.
When a person becomes ill they can absorb massive doses of standard ascorbic acid, using the dynamic flow approach. So if you are sick, taking a gram of liposomal vitamin C instead of a gram of cheap ascorbic acid will provide little extra benefit. Both will be well absorbed , and the liposome contains sodium ascorbate which is less effective. Liposomes only provide added benefit once the sick person has approached bowel tolerance levels, using standard ascorbic acid.
Liposomal vitamin C is NOT more effective than IV for fighting acute infections. This suggestion is unscientific and unsupported by data. We prefer liposomes for chronic infections and cancer, but this does not extend to acute illness. There is also a lot of hype around the fact that liposomes can be absorbed directly into cells. Many liposomes are absorbed from the gut and pass into the liver, where they are stored and the vitamin C released. Liposomes may also float around in the bloodstream, lymph nodes, and so on, waiting to release their contents or be taken up by cells. But the cells that take up the liposomes are not necessarily those that are most in need of vitamin C. Moreover cells may suffer side effects; liposomes are basically nanotechnology and have additional theoretical issues.