4 Food Habits I Learnt in the Royal Marines That Keep Me Lean

Summary

Luke Fletcher describes how he went from overeating while training as a Royal Marine to severely restricting food. He felt hungry and low on energy, and became increasingly prone to training niggles. An older fellow Marine, Charlie, helped him shift his focus from simply eating less to eating more nourishing food. Fletcher says his energy and training improved after he adopted Charlie’s straightforward approach.

Four Food Habits

• Prioritize protein, starting at breakfast. Fletcher says toast alone gave him very little protein and argues that many men fall short of their daily intake. His practical rule is to include a palm-sized portion of protein at breakfast. Examples include eggs, Greek yogurt with nuts and seeds, or lentil dal with eggs or yogurt.
• Estimate portions with your hands instead of relying on scales. His plate guide is:
  • A palm of protein
  • A fist of vegetables
  • A cupped hand of carbohydrates
  • A thumb of fats

Fletcher notes that hand portions are estimates, not precise measurements, and says calorie tracking can also be inaccurate. Tracking may suit some people, but he does not consider weighing food the only sign of discipline.

• Choose varied, minimally processed foods, and make about half the plate colorful. Fletcher recommends including vegetables and other whole foods, and checking whether a plate is mostly beige. He says ultra-processed foods can be easy to overeat and less filling, framing the challenge as being “outgunned, not undisciplined.”
• Eat the same meal together, adjusting portions rather than cooking separate meals. Fletcher’s family pizza-and-film night includes homemade pizzas with varied toppings, plus prepared vegetables and hummus. He presents shared meals as a way to enjoy food and family time without treating a favorite meal as a “cheat meal.”

Other Takeaways

• Avoid swinging between overeating and under-fueling. Fletcher says eating far less without improving food quality left him miserable and hurt his training.
• Make the basics sustainable. He cautions that demanding an ideal, “gold-standard” choice every time can lead to giving up altogether. A decent, practical option is better than no plan.
• Build consistency before an intense short-term push. Hard dieting phases may have a place, Fletcher says, but they should rest on solid habits. If an approach feels miserable, it may need rethinking.
• Make healthier choices easy to act on. Having cut vegetables ready to serve helped Fletcher’s children eat them without pressure.

Presenters and Sources

• Presenter: Luke Fletcher (“Fletch”)
• Personal influence: Charlie, an older Royal Marines colleague
• Research referenced by Fletcher: A study attributed to Champagne et al. on under-reporting food intake, and an unnamed controlled study comparing ultra-processed and unprocessed diets.