Eat for steady energy, walk after meals

Do this

• Build each meal around a protein that gives a lot of protein for its calories: eggs, fish, lean meat, or a planned plant combination.
• Add vegetables and fruit for fibre and micronutrients.
• Eat a low-sugar fermented food most days: sauerkraut, kimchi, beet kvass.
• Cook with olive oil and a little butter. He advises skipping the seed oil argument.
• Include some starch (rice, oats, potatoes, sourdough), especially at your last meal, and keep it from being buried in fat.
• Walk for 5–10 minutes after eating. Stuck in a seat? Do seated calf raises, a few squats, or bounce your knee.
• Aim for 7,000–8,000 steps across the day. Take the stairs and pace during calls.

Why it works

Working muscle pulls glucose out of the blood, so light movement after a meal flattens the spike. The soleus, a calf muscle, can keep doing this for hours. Fermented foods support a more varied gut microbiome. His case for starch is that glucose lowers cortisol, which helps sleep when the starch is eaten in the evening.

What the research says

Post-meal walking is strongly supported. Fermented foods have one good randomized trial behind them. The starch and cortisol reasoning is plausible but lightly tested. He is blunt in the episode that most nutrition research is weak.

• Buffey et al., Sports Medicine, 2022The Acute Effects of Interrupting Prolonged Sitting Time in Adults with Standing and Light-Intensity Walking on Biomarkers of Cardiometabolic Health in Adults: A Systematic Review and Meta-analysisAcross seven trials, short light walks lowered post-meal blood sugar compared with sitting, and did more than standing.
• Hamilton et al., iScience, 2022A potent physiological method to magnify and sustain soleus oxidative metabolism improves glucose and lipid regulationSeated calf raises kept up for hours cut the blood sugar rise after a glucose drink by 52% in 25 adults. He calls the method impractical and uses it to explain why walking works.
• Gao et al., Scandinavian Journal of Medicine & Science in Sports, 2024Enhanced muscle activity during interrupted sitting improves glycemic control in overweight and obese menThree-minute squat or walk breaks every 45 minutes lowered blood sugar more than a single 30-minute walk, in 18 overweight men. The episode describes the breaks as ten squats; each one lasted three minutes.
• Paluch et al., Lancet Public Health, 2022Daily steps and all-cause mortality: a meta-analysis of 15 international cohortsRisk of death fell as daily steps rose, levelling off at about 6,000–8,000 steps for adults over 60 and 8,000–10,000 for younger adults.
• Levine et al., Science, 1999Role of nonexercise activity thermogenesis in resistance to fat gain in humansWhen 16 adults were overfed by 1,000 kcal a day, those whose everyday movement rose the most gained the least fat.
• Wastyk et al., Cell, 2021Gut-microbiota-targeted diets modulate human immune statusTen weeks of fermented foods increased gut microbiome diversity and lowered 19 inflammatory proteins in 36 adults. A high-fibre diet did not.
• Afaghi et al., American Journal of Clinical Nutrition, 2007High-glycemic-index carbohydrate meals shorten sleep onsetA high-glycaemic rice meal four hours before bed nearly halved the time 12 men took to fall asleep.
• Pontzer et al., Science, 2021Daily energy expenditure through the human life courseEnergy use, adjusted for body size, stays flat from age 20 to 60 and declines only after that, in data from more than 6,400 people. This is the basis for his point that metabolism need not fall with age.

Watch out

If you have diabetes, kidney disease or a history of disordered eating, set food targets with your clinician.