The Cheapest Complete Protein

...sardines pack 25g of protein and 1.5g of omega-3s per tin.

G'day mate!

I landed in Muscatine on Thursday with a race bag half full of gear and half full of tins. The sardines went in before the spare goggles did. That's how much I trust them on a travel week.

Race-week nutrition away from my own kitchen is always the real test. No fridge I control, no butcher I know, just whatever the gas station and the nearest grocery store can give me. This week it came down to one food doing more work than anything else in my bag.

In this week’s newsletter (4 min read):
💵 Why a $1 tin does the job of three separate supplements
🐟 The nutrient combination that makes sardines hard to beat
✅ How I actually eat them, and it's not straight from the can

If you have a mate spending a fortune on protein powder and fish oil, send them THIS link.

Cheap Doesn't Mean Low-Value

Somewhere along the way, price became a proxy for quality. Expensive powders, boutique protein blends, fish oil in a glass bottle with a Latin name on it. Meanwhile one of the most complete whole foods going sits in the canned aisle for less than a coffee.

Sardines are a forage fish. Small, short-lived, wild-caught, barely processed between the ocean and the tin. Nobody reverse-engineers this in a lab. It's just what a small oily fish already carries: complete protein, long-chain omega-3s, vitamin D, B12, and calcium and phosphorus from the soft, edible bones. One package, no blending.

Because those bones are soft enough to eat, a tin gives you about as much calcium as a glass of milk. Most people bin that part without realising what they're skipping.

One Tin, Three Supplements' Worth

Two mornings before the Muscatine Sprint I had no kitchen, just a hotel room and a cooler bag. Breakfast was oats, a banana, and a tin of sardines mashed straight in, because I wasn't finding better protein and omega-3s at a gas station.

A standard tin delivers roughly 22 to 25g of complete protein and close to 1.5g of combined EPA and DHA. Most research on the heart and inflammation benefits lands in the 1 to 2 gram daily range, so one tin gets you most of the way in a single sitting. There's a modest dose of the creatine we covered last week riding alongside, too.

Now price it out:

  • Protein per tin: ~22 to 25g

  • Omega-3 (EPA+DHA): ~1.5g

  • Cost: roughly $1 to $2

A protein supplement costs real money per gram of protein. A fish oil capsule costs real money per gram of omega-3. A tin gives you both, plus a stack of vitamins and minerals, for about a dollar.

Why They're a Recovery Food, Too

Post-race, sitting in a Muscatine parking lot with legs that wouldn't cooperate, I didn't want a big meal. I wanted something fast that would actually help. A tin of sardines and a banana did more in ten minutes than anything else I could have grabbed.

Recovery isn't only protein timing. It's calcium and vitamin D working on bone density through a heavy block. It's B12 for energy metabolism when you're short on sleep. It's selenium supporting your antioxidant systems after hard sessions. Sardines carry all of it in one can.

There's a mercury angle worth knowing. Sardines live only a few years and feed low on the food chain, so they carry a fraction of the mercury of tuna or swordfish. That's the difference between a fish you eat occasionally and one you can eat a few times a week.

How I Actually Eat Them

  • 3 to 4 tins a week, more on heavy training weeks.

  • Packed in water or olive oil, not vegetable oil blends. Check the label.

  • Wild-caught where you can get it, and watch the sodium if that matters to you.

  • Mashed on sourdough with lemon and chili, tossed through pasta, or flaked into a salad.

Final thoughts

The most over-engineered thing in your kitchen might be your supplement drawer. The most underrated might be a one-dollar tin sitting next to it. Sardines aren't a hack. They're a small fish doing what a whole shelf of products is trying to copy.

Quick Notes

🎬 New YouTube vid is my full day of eating in Ironman training. Watch it HERE.

🏊🏻‍♂️ Had a triathlon this weekend in prep for my Ironman — felt great and stoked to keep building in training block.

#EatGoodFeelGood

— DC