Beans Beat Every Food for a Long Life

G'day mate!

I just landed in Italy to marry the best person in the world.

I also brought my bike, because Ironman prep waits for no one, not even a wedding week. Milena's either very understanding or has already accepted what she's in for. Probably both.

So here I am, between the biggest week of my personal life and a training block that doesn't care about the occasion, thinking about beans. Stick with me.

Beans and I have a complicated relationship. They upset my gut if I'm not careful, and deep in Ironman prep, gut comfort matters. So I work with them. Minimise around races, maximise in the training windows between.

This week: why beans earn a place even if they've given you grief, what the longevity data says, and how to eat them with your gut on side.

In this week’s newsletter (4 min read):
🫘 The 7-year study across 4 countries that keeps pointing back to legumes.
🌍 Why beans are a two-for-one for athletes, not just a protein source
✅ How to work beans into your diet if they've caused gut issues before

If you have a mate who swore off beans after one bad experience, send them THIS link.

What the Research Actually Says

A 2004 study in Asia Pacific followed 785 older adults across four countries, Japan, Sweden, Greece and Australia, for up to seven years, looking for the single most consistent dietary predictor of survival across every food group.

It was legumes. Not fish, not vegetables, not olive oil. Every 20g increase in daily legume intake was linked to a 7 to 8% drop in mortality risk, and it held across four completely different food cultures.

The study wasn't built to find beans. It searched across everything, and beans won. Same signal across four cuisines and four cooking traditions, which is what makes it hard to dismiss.

More Than Just a Protein

Most bean conversations stop at protein. For athletes, the interesting part is what comes with it.

Beans are one of the few foods that deliver real protein and slow-release carbohydrate in the same serve. Lower glycaemic load, high fibre, steady energy. Ideal around longer efforts. Not the session where you need fast fuel, but the recovery meal after, or the day before a long ride.

That's the window I use them. Not race morning. In the training block, when my body needs protein to repair and carbs to refill glycogen, beans cover both.

What you're getting:

• A two-for-one: protein and slow carbs in one serve, less faff than chicken and rice apart

• ~9g protein per 100g cooked for lentils and black beans

• Cents per serve versus dollars for the same protein from meat

Why Beans Bloat You, and the Fix

Beans bloat people. That's real, and pretending otherwise doesn't help.

The reason is usually fibre adaptation, not a permanent intolerance. Go from low-fibre to high-fibre overnight and your gut hasn't built the bacteria to handle it. The discomfort isn't beans being bad for you, it's your microbiome asking for time to catch up.

The fix is gradual introduction, not avoidance. Once your gut adapts, the bacteria fermenting the resistant starch in beans produce short-chain fatty acids, which your gut lining uses to repair after training. Better gut integrity means less inflammation and faster recovery. The food that seems to wreck your gut is, done right, one of the best things for it.

One practical tip: rinse canned beans. A lot of the compounds most linked to gas leach into the canning liquid, so draining and rinsing washes a good chunk away.

What to Actually Do

• Rotate them in a few times a week. Consistent enough to adapt, not so rigid it's a chore.

• Canned is fine. Drain and rinse. The from-scratch difference is marginal for most people.

• Pair for a complete protein. Rice and beans together cover the full amino acid profile.

• Hide them in meals you already make. Stir into scrambled eggs, blend into sauces, mix through ground meat.

• Start at 30 to 40g if you're new or sensitive, and let your gut adapt before going bigger.

• Pull them back 48 hours before races if gut comfort matters.

Final thoughts

Beans aren't exciting. That's the point. The best performance foods rarely are. They just work, at a price that doesn't make you think twice. Not a trend, a pattern. Find the window that works for your gut, and eat them like it.

This Week’s Recipe: Dad’s Chile con Carne

The two-for-one in one pot, and it's my dad's. Lean bison and kidney beans with tomato, cumin, coriander and paprika. The beans pull double duty for your gut, and the bison is lean enough to digest fast without wrecking your sleep.

RECIPE HERE

Nutrition Breakdown:

cals: 365   •   fat: 9g   •   protein: 41g   •   carbs: 35g

Quick Notes

💒 I get to marry the best person in the world this week, if you’re interested in a peak into the festivities there will be some on socials.

#EatGoodFeelGood

— DC