Goodphyte · Operational Readiness

Readiness Through Absorption

The science behind Goodphyte for Northern operations — for the Department of National Defence and the Canadian Armed Forces — and the published research it rests on.

A reference for medical and nutrition advisors. Goodphyte is a dietary supplement, not a treatment for any disease.

The problem: fed to standard, absorbing below it

The North runs on shelf-stable, storable food. The Individual Meal Pack is built on the seeds and grains where phytic acid lives, binding iron, copper, zinc, calcium, magnesium, protein, and amino acids before the body can absorb them. Personnel are fed to standard, yet under cold-weather load, heavy rucks, and broken sleep, the limiting factor is not calories but the nutrients the body is able to absorb from each meal. Even supplements and multivitamins taken with a meal are bound by phytic acid, so much of the effort toward optimal nutrition is wasted (Hallberg 1989; Brouns 2022; Kumar 2010).

It costs nutrition twice. Phytic acid locks up the minerals inside grain foods, and, as an anti-nutrient, it binds minerals from the other foods eaten in the same meal — pulling iron out of the meat and calcium out of the milk on the same plate. Micronutrients are essential cofactors for thousands of biochemical reactions behind energy production, tissue repair, immune function, and physical and cognitive performance. When the body cannot absorb them efficiently, even a healthy ration may fail to meet cellular needs.

The solution: phytase frees the minerals already in the ration

Phytase, the enzyme in Goodphyte, breaks phytic acid apart and releases the minerals it was holding, so the body can absorb them from the ration already on the plate. Human studies show phytase can substantially improve the absorption of the minerals phytic acid binds, particularly iron and zinc (Troesch 2013; Sandberg 1996). One capsule turns food a soldier already eats into meaningfully more nutrition — a lightweight, shelf-stable, inexpensive way to close the mineral gaps that drain energy and wear down resilience over a hard Northern deployment.

Four attrition categories, one daily enzyme

01 · Skeletal resilience

Calcium and phosphorus freed for bone remodeling under ruck and patrol load — fewer metatarsal, rib, and spinal stress reactions that pull personnel off the line (Hambidge 2005).

02 · Oxygen, energy & recovery

Iron, copper, zinc, and magnesium absorbed — copper freed to load iron for oxygen transport. Aerobic capacity held deep into multi-day cold operations, including female and endurance personnel at risk of iron depletion (Zimmermann & Hurrell 2007).

03 · Protein & gut integrity

Dietary protein reaches muscle; liberated amino acids support the gut barrier under field stress, reducing the illness clustering that degrades unit strength on extended tasks.

04 · Sleep, recovery, cognition & fewer sick days

Magnesium freed for deep, restorative sleep and the decision-making that erodes under fatigue; zinc unlocked to support immune defense (Abbasi 2012; Prasad 2008).

What the evidence shows — and its limits

Claim	Primary source	Evidence
Phytic acid inhibits iron absorption, dose-dependently.	Hallberg 1989	Human
Added phytase increases iron absorption from a phytic-acid-rich meal.	Sandberg 1996	Human, controlled
Phytase improves iron and zinc bioavailability from phytic-acid-rich foods.	Troesch 2013 (12 human iron & 5 zinc studies)	Human, systematic review
Subclinical iron depletion, short of anemia, impairs energy and work capacity.	Zimmermann & Hurrell 2007	Human, review
Phytase improves mineral status and protein use at scale.	Four decades of poultry & swine nutrition literature	Animal only
Goodphyte specifically improves readiness outcomes in a serving population.	Unpublished; Goodphyte human trial data available to advisors under confidentiality	Not yet shown

The honest summary. The mechanism is well established in humans: phytic acid blocks mineral absorption, and phytase relieves that block in controlled studies. What has not been done is a trial measuring readiness outcomes in a serving population over time — exactly what a Joint Task Force North evaluation would test.

Voices from the field

Individual experiences, not evidence of treatment, and not evidence that Goodphyte treats any condition. Access Nutrients is now Goodphyte — earlier testimonials use the former name.

“I have used Goodphyte for the last year … I sleep much better at night. I’m not tired during the day. I feel more cognitively aware and alert, and much more able to process everything that I do in my life. I feel like I’m 40 years old and not as old as I am. I feel terrific. … It is very real. It is not an experiment. The data backs it up.”

Tom Renney — former CEO of Hockey Canada · head coach of four NHL teams · IIHF board chair

“I used to have mid-day crashes of fatigue and that has stopped. My energy and alertness are consistent day to day, and my runner’s gut has settled down.”

Devin Featherstone — firefighter, ultra-endurance athlete & father

“Goodphyte has extended what my high-end aerobic pace is. It’s bumped it down probably 15 seconds a mile for me. … It’s making a 5:25/mile effort feel the same internally as a 5:15, so we’re looking at 10 seconds a mile of a bump.”

Anthony Kunkel — USATF 50-Mile & 100K National Champion · 2026 Montana Spartan Ultra winner

“I’m inexplicably fast right now — a monster running up hills, and I’m recovering fast. My 100-mile week didn’t ruin me. Effort feels good; it doesn’t feel as draining as it normally would.”

Alyssa Turner — elite ultra & trail runner

“Goodphyte is such a great tool to enable you to be ready every day, to put in the work. It’s enabling you to absorb the nutrients in the healthy whole foods you already eat.”

Rebecca Schmitt — elite marathoner · 2028 U.S. Olympic Marathon Trials qualifier

Annotated bibliography

Hallberg L, Brune M, Rossander L. (1989). Iron absorption in man: ascorbic acid and dose-dependent inhibition by phytate. Am J Clin Nutr, 49(1):140–144.
Sandberg AS, Hulthén LR, Türk M. (1996). Dietary Aspergillus niger phytase increases iron absorption in humans. J Nutr, 126(2):476–480.
Hambidge KM, Krebs NF, Westcott JL, et al. (2005). Absorption of calcium from tortilla meals prepared from low-phytate maize. Am J Clin Nutr, 82(1):84–87.
Zimmermann MB, Hurrell RF. (2007). Nutritional iron deficiency. The Lancet, 370(9586):511–520.
Prasad AS. (2008). Zinc in human health: effect of zinc on immune cells. Molecular Medicine, 14(5–6):353–357.
Kumar V, Sinha AK, Makkar HPS, Becker K. (2010). Dietary roles of phytate and phytase in human nutrition: a review. Food Chemistry, 120(4):945–959.
Abbasi B, Kimiagar M, Sadeghniiat K, et al. (2012). Magnesium supplementation and primary insomnia in the elderly. J Res Med Sci, 17(12):1161–1169.
Troesch B, Egli I, Zeder C, Hurrell RF, de Pee S, Zimmermann MB. (2013). Phytase from Aspergillus niger significantly increases iron and zinc bioavailability from phytate-rich foods. Food Nutr Bull, 34(2 Suppl):S90–S101.
Brouns F. (2022). Phytic acid and whole grains for health controversy. Nutrients, 14(1):25.

A full annotated bibliography, organized by pillar, is available for medical and nutrition advisors on request: amy@accessnutrients.org.

These statements have not been evaluated by Health Canada or the U.S. FDA. Goodphyte is a dietary supplement, not intended to diagnose, treat, cure, or prevent any disease — including cancer, diabetes, or cardiovascular or kidney disease. It complements, and does not replace, military nutrition and medical care. Testimonials are individual experiences and are not a guarantee of results.