Peptide library
PE 22-28
Your guide to this compound.
Nutritional support
Nourish with perspective.
Understand what nutrition can support—and what the evidence cannot promise.
A reading guide, not a supplement stack.
Using a peptide does not automatically create a need for extra vitamins or minerals. These topics separate nutrition references, research findings and selected medicine precautions.
Source check: 2026-09-07 · Editorial review; clinical sign-off pending.
For your selected profile
PE 22-28
No study establishing a beneficial supplement combination for this exact compound was verified in this nutrition review. The topics below concern general nutrition, not a prescription or a safety clearance.
Read intake numbers correctly
RDA and adequate intake values describe total daily intake for generally healthy U.S. adults aged 19 and older. Values shown exclude pregnancy and lactation unless stated. They are not supplement doses or deficiency-treatment instructions.
Upper limits are ceilings, not goals. Count overlapping products; magnesium's supplemental limit excludes food. Age, illness and local guidance can change what applies to you.
Food & supplement evidence
7 topics · open any topic to see food sources, intake context and cautions
Vitamin D · General nutrition
Supports calcium absorption and bone health. Additional supplementation depends on intake and clinical assessment.
Food sources
Fatty fish and vitamin-D-fortified foods.
Intake or study context
U.S. RDA: 600 IU/day ages 19–70; 800 IU/day over 70.
Before adding a supplement
4,000 IU/day is the adult upper limit, not a routine target. Excess can cause hypercalcemia. Deficiency treatment requires its own plan.
Magnesium · General nutrition
Supports normal nerve, muscle and enzyme function. This does not establish a sleep or GH-enhancing combination.
Food sources
Nuts, seeds, legumes and whole grains.
Intake or study context
U.S. adult RDA: 310–420 mg/day total, depending on age and sex.
Before adding a supplement
The adult upper limit is 350 mg/day from supplements and medicines, excluding food. Count elemental magnesium, not compound weight. Kidney impairment increases toxicity risk; mineral products can affect medicine absorption.
Omega-3 fatty acids · General nutrition
EPA and DHA have studied nutritional and clinical roles; results depend on formulation, dose and population.
Food sources
Oily fish; flax, chia and walnuts supply ALA, a different omega-3.
Intake or study context
No universal EPA/DHA supplement target for peptide use.
Before adding a supplement
Review anticoagulants and heart-rhythm history. Some long-term 4 g/day trials in cardiovascular-risk populations found more atrial fibrillation. Prescription products are not interchangeable with supplements.
Vitamin B12 · General nutrition
Needed for red blood cells and neurological function. Low intake or impaired absorption may require assessment and treatment.
Food sources
Animal foods and B12-fortified foods; unfortified plant foods are unreliable sources.
Intake or study context
U.S. adult RDA: 2.4 mcg/day.
Before adding a supplement
Metformin and acid-suppressing medicines can affect B12 status. A food-intake reference is not a treatment dose or a replacement for prescribed injections.
Vitamin B6 · General nutrition
Participates in amino-acid and neurotransmitter metabolism. This does not establish benefit with Semax, Selank or other neuroactive compounds.
Food sources
Poultry, fish, potatoes and chickpeas.
Intake or study context
U.S. RDA ages 19–50: 1.3 mg/day.
Before adding a supplement
Chronic excess can damage sensory nerves. Check the combined B6 in B-complex, multivitamin and magnesium products. U.S. and European upper limits differ; a limit is not a recommended dose.
Choline · General nutrition
Needed for cell membranes and acetylcholine. A physiological role is not proof that Alpha-GPC or CDP-choline improves peptide outcomes.
Food sources
Eggs, meat, fish and soybeans.
Intake or study context
U.S. adult adequate intake: 425 mg/day women; 550 mg/day men.
Before adding a supplement
High intake can cause fishy body odor, sweating and low blood pressure. No routine choline-supplement regimen is selected here.
Multivitamin / mineral products · General nutrition
A multivitamin can add nutrients when intake is inadequate. It cannot replace a varied diet, and formulations differ.
Food sources
Start by reviewing usual foods and fortified products.
Intake or study context
Consider a documented dietary gap; no default “one a day” instruction.
Before adding a supplement
Check overlapping ingredients, particularly vitamin D, B6, zinc and iron. Discuss medication interactions and pregnancy-specific needs.
Bring the whole picture
Bring your medicine list, supplement labels, usual food intake and relevant health history to a clinician or dietitian. Ask whether a deficiency is likely, whether testing is needed and what would justify a supplement.
This page does not check all interactions, validate a research product or make a combination safe. No amounts are added together or saved as a regimen.
Sources & review scope
Nutrient function, intake context and safety sections. General nutrition evidence; not a trial of combination use with this peptide.
Nutrient function, intake context and safety sections. General nutrition evidence; not a trial of combination use with this peptide.
Nutrient function, intake context and safety sections. General nutrition evidence; not a trial of combination use with this peptide.
Nutrient function, intake context and safety sections. General nutrition evidence; not a trial of combination use with this peptide.
Nutrient function, intake context and safety sections. General nutrition evidence; not a trial of combination use with this peptide.
Nutrient function, intake context and safety sections. General nutrition evidence; not a trial of combination use with this peptide.
NIH ODS · Multivitamin/mineral supplements
General nutrition and supplement-label guidance; no peptide-specific efficacy claim.