The Supplement Stack — What's Worth Taking, What Isn't, and the Order to Add Them

The supplement industry sells a lot of fairy dust. Most of what's on shelves is either underdosed, badly absorbed, or just unsupported by any meaningful research. A few things actually move the needle. The trick is knowing the difference and not stacking ten things hoping one works.

This is the framework I use personally and with coaching clients. Tier 1 is non-negotiable for almost anyone reading this. Tier 2 is conditional. Tier 3 is for specific goals. Skip the tier you don't need.

Tier 1 — the foundation

These cover the gaps that almost everyone has and provide a base you can build everything else on.

Creatine monohydrate — 5 grams per day. The most-studied supplement in history, full stop. It improves strength output, recovery, hydration in muscle cells, and there's growing evidence for cognitive and longevity benefits. The "monohydrate" part matters — anything else (HCL, ethyl ester, "buffered") is a marketing upcharge for the same molecule. Take it any time of day, with or without food.

Vitamin D3 with K2 — 5,000 IU of D3 plus 100 mcg of K2 (MK-7). Most adults are deficient in vitamin D, especially anyone in northern climates or anyone who doesn't get sun on bare skin daily. K2 directs calcium to bone instead of arteries — it's the missing piece in most D supplements. Test your blood level before and after to confirm it's working for you.

Omega-3 (EPA and DHA) — 2 to 3 grams of combined EPA and DHA per day. Read the label — most fish oil is dosed by total fish oil, not by EPA/DHA content, which means a 1,000 mg pill might only have 300 mg of the actual active compounds. Look for triglyceride-form fish oil with at least 600 mg of combined EPA + DHA per pill. Krill oil and algae oil are alternatives if you can't tolerate fish oil.

Magnesium glycinate — 200 to 400 mg in the evening. Most adults are deficient. Glycinate is well-absorbed and won't give you GI issues like cheaper forms (oxide, citrate at high doses). It supports sleep quality, muscle recovery, and stress regulation.

Electrolytes — a serving daily, more if you train hard or sweat a lot. The mainstream brand is LMNT — high sodium, no sugar, no garbage. You can also DIY with sodium, potassium, and magnesium powders if you want to save money. Most people are chronically under-sodiated, especially anyone training hard or eating clean. Low sodium drives fatigue, headaches, poor pump in the gym, and bad sleep.

That's tier 1. Five products. If you're taking anything beyond this without these in place, you're optimizing the wrong layer.

Tier 2 — protein and meal-replacement insurance

This isn't really a supplement category, but most guys treat it like one and most guys do it wrong.

Whey protein isolate or hydrolyzed whey — 1 to 2 scoops a day to hit protein targets. The Dymatize ISO100 line is a workhorse — 25 grams of protein per scoop, low lactose, mixes clean. There are dozens of equally good options. Avoid anything labeled "mass gainer" unless you specifically need surplus calories.

A greens powder if you don't eat vegetables — AG1, Bloom, Athletic Greens, whatever. These are insurance, not magic. If you eat a lot of vegetables already, you don't need one. If you don't, a daily greens powder closes some micronutrient gaps.

A solid multivitamin if greens powder isn't your thing — Thorne Basic Nutrients 2/Day or similar. Skip the gummy bear stuff aimed at TikTok.

Tier 3 — goal-specific layers

These are where you start to specialize. Add only what matches what you're actually trying to accomplish.

For sleep. Glycine: 3 grams before bed, improves sleep quality at the deep-sleep level, cheap and effective. Apigenin: 50 mg before bed, mild calming effect, supports GABA pathways. Inositol: 2 to 4 grams before bed, helps with anxiety-driven insomnia. Avoid melatonin as a default — most OTC doses are 5 to 10 times what's actually needed. If you use it, use 0.3 to 0.5 mg, not 5 to 10 mg.

For training and recovery. Beta-alanine: 3 to 5 grams daily, buffers muscle acidity, improves performance on sets in the 8 to 20 rep range. Citrulline malate: 6 to 8 grams pre-workout, real pump effect, modest performance benefit. Ashwagandha: 600 mg of KSM-66 specifically, lowers cortisol, may modestly increase testosterone in stressed men. Take daily for at least 8 weeks to see effects.

For body composition. Berberine: 500 mg with carb-heavy meals, improves insulin sensitivity, blunts post-meal blood sugar spikes (don't combine with a GLP-1 unless under supervision). L-carnitine (acetyl form): 1 to 2 grams daily, effects on fat loss are modest and only show up over months, cognitive effects are more reliable.

For brain and cognition. Lion's Mane mushroom extract: 1 gram daily, some evidence for nerve growth factor stimulation. Caffeine + L-theanine: 100 to 200 mg caffeine paired with 200 mg L-theanine, same alertness, less jitter, no crash.

What to skip

BCAAs — if you eat enough protein, these are redundant. Glutamine — same, useful for ICU patients, irrelevant for healthy lifters. Test boosters (tribulus, fenugreek, D-aspartic acid) — none meaningfully raise testosterone in healthy men. Most "fat burners" — weak evidence, not worth it. Detox products — your liver handles detox. Anything with a proprietary blend on the label — they're hiding underdosing.

How to actually buy

Three rules. One, buy from companies that do third-party testing — NSF Certified for Sport, Informed Sport, USP Verified. Two, don't buy 90-day supplies of something you've never tried. Buy a small bottle, run it for two to four weeks, see how you respond, then buy in bulk if it works. Three, periodically audit your shelf. Every few months, look at what you're taking and ask whether you'd notice if you stopped. If no, stop.

Order of operations

If you're starting from zero, add things in this order. One at a time, two weeks apart so you can tell what's actually doing what. Creatine → Vitamin D + K2 → Omega-3 → Magnesium glycinate → Electrolytes → Whey protein. Now stop and reassess. The above is 90 percent of the result.

Anything beyond this should map to a specific goal you're chasing. Don't add for the sake of adding. The goal is the smallest stack that does what you need it to do.

If you want a personalized stack built around your bloodwork and goals, that's what coaching is for.