BEHAP · THE SCIENCE BEHIND YOUR CHOICE

From the vitamins in your formula
to what happens in your body

Ingredient names may sound familiar, but each plays a different role. Start with the route vitamins take into the body, then explore the energy and antioxidant systems behind the formula that interests you.

Why IV? How the delivery route changes blood levels

Oral vitamins pass through the digestive system and are absorbed in the intestines. IV administration delivers substances directly into the bloodstream. This route can produce a different pattern of blood levels for certain vitamins compared with oral administration.

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Peak blood vitamin C levels in a trial using the same 1.25-gram dose

Padayatty and colleagues studied 17 healthy volunteers in 2004. Mean peak levels were approximately 885 µmol/L after IV administration, compared with 135 µmol/L after oral administration. The study directly measured differences in vitamin C pharmacokinetics—how its levels change in the body.

Read the original study ↗

Cellular energy takes several steps to produce

Nutrients from a meal undergo several reactions before becoming ATP, the energy cells use. Several B vitamins support enzymes in this process, while magnesium is involved in energy production and muscle and nervous-system function.

For long-chain fatty acids, L-carnitine forms part of the transport system into the mitochondria before fatty-acid breakdown produces energy. This biochemical role explains why carnitine is often discussed in connection with using fat for energy.

Glutathione: a cell-protection system the body makes itself

Glutathione is made from 3 amino acids: glutamate, cysteine and glycine. Cells use it with enzymes to manage peroxides. It also binds to certain substances in reactions that help the body process them further.

NAC: a building block for glutathione

The body makes glutathione using the amino acids cysteine, glutamate and glycine. N-acetylcysteine, or NAC, provides cysteine that cells can use to make glutathione. Its connection to the antioxidant system is therefore as a source of a building block for the body.

This connection has prompted interest in NAC in alcohol-related research. Oxidative stress may occur during alcohol metabolism, and glutathione forms part of the system cells use to manage it. Research in this area ranges from cellular mechanisms to symptoms after drinking in humans. See the human NAC study ↗

Another substance discussed in relation to the antioxidant system is alpha-lipoic acid, or ALA, which is involved in recycling certain antioxidants. NAC provides cysteine for glutathione synthesis, so the two play different roles in this system.

A medical example: NAC and paracetamol poisoning

As the liver metabolises paracetamol, some is converted into a reactive substance called NAPQI. Liver glutathione helps bind to it. After an overdose, glutathione may be depleted and NAPQI can damage liver cells.

Doctors use NAC to treat paracetamol poisoning. It helps maintain or restore liver glutathione to manage toxic products of drug metabolism. This example illustrates the importance of glutathione in the body.

What does the body process after drinking?

Alcohol is converted into acetaldehyde and then into acetate through separate enzyme steps. Acetaldehyde is therefore one of the markers researchers examine when studying alcohol metabolism.

HUMAN STUDY · 2024 · ORAL YEAST EXTRACT

A trial of glutathione and acetaldehyde levels

A randomised, double-blind, placebo-controlled crossover trial analysed 36 participants. Taking a yeast extract containing 50 mg of glutathione before drinking reduced peak acetaldehyde levels and total blood exposure over the monitoring period by approximately half. Blood alcohol levels and overall hangover scores did not differ significantly.

The finding of interest was the acetaldehyde marker after an oral formulation. It offers another perspective on why glutathione has attracted attention in this area of research.

Read the original study ↗

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