The official protein guideline is 0.8 grams per kilogram of body weight. For a 150-pound person, that's about 55 grams a day. For an active adult over 40 who wants to keep muscle and age with strength, the research suggests that number is roughly half of what you actually need. That space between what you think you need, what you're actually eating, and what the evidence supports is the protein gap. It doesn't feel like a problem. You're eating. Your meals look healthy. But the muscle keeps slipping, a little more each year, until one day you go to lift something and it's harder than you remember. Today we run the math, look at what adequate protein looks like on a plate, and settle the timing question. I also take on the other side of the pendulum, because there is now a real conversation to have about too much protein, not just too little. You'll learn: Why protein needs rise with age rather than fall, and how to calculate your own target in ten seconds Why distribution beats daily totals, and what the 30 to 40 gram per meal threshold really means The truth about the anabolic window, and when post-workout timing actually matters Where the upper limit sits, and why adequate protein is a body composition strategy rather than a weight gain strategy Feed your muscle. It's feeding your future. Leucine at a Glance After 40, each meal needs roughly 2.5 to 3 grams of leucine to fully trigger MPS. Here's how common servings stack up. Clears the threshold on its own: Chicken breast, 6 oz: 52g protein, 4.0g leucine Sirloin, 6 oz: 48g protein, 3.8g leucine Salmon, 5 oz: 35g protein, 2.8g leucine Canned tuna, 1 can: 33g protein, 2.6g leucine Whey isolate, 1 scoop: 25g protein, 2.6g leucine Cottage cheese, 1 cup: 25g protein, 2.5g leucine Falls short, needs a partner: Egg whites, 1 cup carton: 26g protein, 2.2g leucine Greek yogurt, 1 cup: 23g protein, 2.2g leucine 2 whole eggs plus 3 egg whites: 23g protein, 2.0g leucine Chicken thigh, 4 oz: 25g protein, 1.9g leucine Tofu, 5 oz super-firm: 24g protein, 1.9g leucine Lentils, 1 cup: 18g protein, 1.3g leucine Black beans, 1 cup: 15g protein, 1.2g leucine Not a muscle protein: Collagen, 2 scoops: 20g protein, 0.6g leucine 📜 FULL CHART, 47 foods across animal and plant sources, with the combinations that get you over the line: The Leucine Threshold Chapters: 00:00 Introduction 04:33 Why Protein Needs Rise 07:14 Distribution Beats Daily Totals 08:54 What Adequate Protein Looks Like 11:29 Protein and Your Workout 14:10 Habits That Create the Gap 16:10 Closing the Gap 18:08 When Protein Becomes Too Much 21:14 Three Things to Use Key Takeaways The RDA prevents deficiency. It does not preserve muscle after 40. Research supports 1.2 to 1.6g per kg after 40, and 1.8 to 2.0g per kg when training consistently. Quick math: bodyweight in pounds divided by 2.2, times 1.2 for a minimum and 1.6 for an active target. MPS responds to each meal, not your daily total. Aim for 30 to 40 grams per meal. Breakfast is the highest-leverage meal and the one that most often falls short. Fix it first. The upper limit is real. Benefit tapers around 2.2g per kg. More than that is not more muscle. Connect With Christine 🌐 thevitalitychoice.libsyn.com 🌐 Corapure: corapure.com 🌐 Vital Recode: vitalrecode.com 👍 If you enjoyed this episode, please like, subscribe, and share it with someone who wants to age strong, capable, and independent. Because how you age matters. Next Episode Our first guest joins the show. We talk about bioenergetic muscle testing and what it can reveal about balance and health.
