How are we dosing glutathione?

In the latest DDT Method podcast with @Anthony Castore , Anthony discussed NAD supplementation. What I found interesting is that Anthony seemed to be against NAD supplementation via NAD+ and its precursors if I understood correctly, and a more appropriate approach would be to instead use a combination of 5 amino and 1MNA. He suggested using 5 amino pre workout and 1MNA on rest days in the evening. Anthony - would you be able to expand on your thoughts regarding NAD supplementation given it seems like a given in the longevity community that you supplement with NAD+ (injection or IV) or its precursors (NMN, NR).

VISION, POSTURE, COGNITION, AND PERFORMANCE: HOW MEMBRANES GOVERN THE WHOLE ORGANISM Up to this point, we’ve stayed mostly at the cellular and membrane level. Conductors, buffers, mitochondria, failure modes. That work matters, but if it stays abstract it risks feeling disconnected from lived experience. So in this part, we zoom out. Membrane health doesn’t just determine what happens inside cells. It determines how an organism perceives the world, organizes its body, and decides how much stress it can tolerate. This is where DHA stops being a biochemical curiosity and becomes something you can see in posture, feel in cognition, and observe in performance. Let’s start with vision. Vision is often treated as a sensory add-on. Something that delivers information to the brain, where the “real work” happens. That framing is backwards. Vision is a primary regulator of autonomic tone. The retina is not just detecting light. It is converting photons into electron movement. That electron movement sets timing signals that propagate through the nervous system. These signals influence circadian rhythm, arousal state, muscle tone, and spatial orientation. The retina is one of the most DHA-dense tissues in the human body for a reason. Phototransduction is a high-frequency, high-precision process. Light hits photoreceptors, electrons move, ion channels open, and signals propagate in milliseconds. The system must respond quickly and reset just as fast. Any noise or delay degrades perception and increases stress. DHA allows retinal membranes to maintain signal fidelity under constant flux. It improves signal-to-noise and shortens recovery time between inputs. When DHA is insufficient, or when membranes are oxidatively unstable, the retina becomes noisy. The system compensates by increasing sympathetic tone. The body becomes more vigilant, more guarded, less adaptable. This is not psychological. It is electrical. From the retina, this tone propagates. Visual instability increases neck and jaw tone.

Low energy is one of the most common complaints in medicine, coaching, and everyday life, yet it is one of the least precisely understood. People describe it as fatigue, burnout, brain fog, weakness, lack of motivation, or feeling “offline.” Athletes feel it when they cannot train. Patients feel it when they cannot work. High performers feel it when discipline no longer works. The problem is that “low energy” is not a diagnosis. It is a surface description of a system-level failure, and two people can experience nearly identical symptoms while the underlying biology is completely different. Treating them the same way helps one person and harms the other. To understand low energy correctly, you have to stop asking how to boost energy and start asking why energy is being limited in the first place. At the deepest level, there are two dominant failure modes. In one, the body cannot produce enough energy. In the other, the body is deliberately suppressing energy production. The first is mitochondrial damage, a capacity problem. The second is inflammatory inhibition, a regulatory decision. One is a broken engine. The other is a functioning engine with the brakes applied. Subjectively they feel similar. Biologically they are opposites. Everything that follows depends on recognizing which one you are dealing with. A simple model helps. Imagine the body as a car. The mitochondria are the engine. They take fuel and oxygen and convert them into usable energy in the form of ATP. Inflammation acts like the central control computer, deciding how much power the engine is allowed to produce. If the engine is damaged, pressing the accelerator does little. If the computer is limiting output, the engine could perform, but is being intentionally restrained. In both cases the car goes slow. Only one responds to pushing harder. Mitochondria exist inside nearly every cell and are responsible for producing ATP, the molecule that powers muscle contraction, nerve signaling, hormone synthesis, immune regulation, tissue repair, and cognition. Without adequate ATP, nothing in the body functions well. Energy production depends on intact mitochondrial membranes, functioning enzymes, proper redox balance, sufficient oxygen delivery, and a steady supply of micronutrients. When any part of this system is damaged, the maximum amount of energy the body can generate drops. This is not a motivational issue. It is a hard ceiling.

By now, the core idea should be clear. DHA is not nutrition. Plasmalogens are not optional add-ons. Mitochondria are not broken engines waiting for more fuel. And inflammation is not the enemy. Across fatigue, poor recovery, cognitive decline, chronic inflammation, burnout, and early aging, the common thread is a loss of signal integrity at the membrane level. This final section exists for one reason: to turn that understanding into a way of thinking that prevents overcorrection, overstimulation, and endless symptom chasing. This is not a protocol. It’s an operating system. The first principle of a membrane-first approach is order. Biology always restores structure before increasing output. When we reverse that order, systems become fragile. When we respect it, systems organize themselves naturally. So the most important question is not, “What should I add?” It’s, “What is the membrane currently capable of handling?” That single question eliminates most mistakes. The first step in this hierarchy is de-noising. Before trying to improve energy or performance, sources of chronic membrane instability need to be reduced. Excessive omega-6 intake, oxidized fats, environmental stressors, poor sleep, and unmanaged psychological stress all increase background electron noise. Adding conduction or stimulation into an already noisy system only amplifies chaos. This is why people sometimes feel worse when adding DHA, mitochondrial supplements, or aggressive training. The system was already loud, and better wiring simply exposes the problem. De-noising isn’t exciting, but it’s foundational. The second step is buffering. Once noise is reduced, the system needs protection before speed. This is where plasmalogens matter. Buffering increases membrane capacitance and allows electrons to move without damaging surrounding structures. This phase often feels calming rather than stimulating, and that’s not a failure. Calm means signal coherence is improving. Better sleep, feeling more grounded, and reduced reactivity without an immediate surge in energy are signs this stage is working. It’s important not to rush past it.