Because You Can’t Build What You Don’t Feed
If I had a dollar for every time a client asked me, “Jen, what do you eat?” I could probably open a second gym.
And I love that question. Not because I think my meals are magic, but because it tells me something important: she’s ready. She’s moved past just showing up and started thinking about how to support what her body is actually doing in a session. That’s a shift. That’s growth.
Here’s what I’ve learned across 15+ years of training, as a competitive gymnast, an Ironman World Championship triathlete, an NPC competitor, and now as a coach working with women who are navigating strength training in their 30s, 40s, 50s, and beyond:
What you eat around your workout matters. Not in a rigid, anxious, weigh-every-gram kind of way. But in a your body is doing hard work and it deserves real fuel kind of way.
Let me walk you through it: the science, the strategy, and the simple meals that actually work for real life.
Why Timing Matters (But Not as Much as You Think)
There’s a concept in sports nutrition called nutrient timing, essentially the strategic placement of what you eat relative to when you exercise. The International Society of Sports Nutrition (ISSN) has published extensive research on this, and their position is clear: what you eat before and after training can enhance recovery, support muscle protein synthesis, and improve how your body adapts over time.
But here’s what the research also says, and what I tell my clients: total daily intake matters more than any single meal window. If your overall nutrition is inconsistent, no perfectly timed post-workout shake is going to save you. Consistency across the day is the foundation. Timing is the finishing touch.
That said, when you are eating well consistently, dialing in your pre- and post-workout nutrition can be the difference between feeling strong, recovered, and energized, or feeling wiped, sore, and stalled.
Before Your Session: Fuel the Work
Think of your pre-workout meal as setting the stage. You want stable energy, mental focus, and enough fuel in the tank to push through your lifts without crashing.
The ISSN’s position on protein and exercise confirms that consuming protein before or after resistance exercise stimulates muscle protein synthesis, and the two together are synergistic. In practical terms, that means showing up to your workout with protein already on board gives your muscles a head start on recovery before you’ve even finished your last set.
Your pre-workout meal should include a moderate amount of protein, some complex carbohydrates for sustained energy, and a small amount of healthy fat. Ideally, eat this 60 to 90 minutes before training so your body has time to begin digestion without feeling heavy.
What That Looks Like on a Real Plate
If you train in the morning:
A couple of scrambled eggs with a slice of Ezekiel toast and half an avocado. Or Greek yogurt with a handful of berries and a drizzle of almond butter. Something light enough to sit well, substantial enough to power you through.
If you train midday or afternoon:
You likely already have a full meal in you. A grilled chicken salad with quinoa and olive oil dressing eaten an hour or so before your session works beautifully. Or leftover salmon with sweet potato and greens. Real food, real fuel.
If you’re short on time (30 minutes or less before training):
Keep it simple and easy to digest. A banana with a tablespoon of peanut butter. A small protein smoothie. A rice cake with turkey and a little honey. The closer to your session, the lighter and more carb-forward the snack should be to avoid digestive discomfort.
This is exactly how I guide my nutrition coaching clients to fuel their workouts so they actually see results from the work they’re putting in.
After Your Session: Repair and Rebuild
This is where your body shifts from breaking down to building back up. During a strength training session, your muscle fibers experience microscopic damage, and that’s a good thing. It’s the stimulus for growth. But growth only happens if you give your body the raw materials it needs to rebuild.
Research published in the Journal of the International Society of Sports Nutrition shows that consuming 20 to 40 grams of high-quality protein after resistance exercise maximally stimulates muscle protein synthesis. Pairing that protein with carbohydrates helps replenish glycogen, the stored energy in your muscles that gets depleted during training.
The old idea of a narrow 30-minute “anabolic window” has been largely debunked by more recent research. The ISSN now acknowledges that the post-exercise muscle-building response lasts for at least 24 hours, with the greatest sensitivity in the first few hours. So you don’t need to panic-chug a shake the second you rerack your last weight. But you should aim to eat a balanced meal within about 60 minutes of finishing your session.
What That Looks Like on a Real Plate
Quick post-workout options (within 30 minutes):
A protein shake blended with frozen banana, spinach, and unsweetened almond milk. This is what I reach for on mornings when I train early and need something fast before my first client.
Full post-workout meals (within 60 to 90 minutes):
Grilled chicken breast with roasted sweet potato and steamed broccoli. Ground turkey stir-fry with brown rice, bell peppers, and a splash of coconut aminos. A hearty egg white omelet with sautéed vegetables and a side of oatmeal.
The pattern is simple: protein to rebuild, carbohydrates to restore, and real whole foods to nourish.
Why This Matters More After 35
As women move through perimenopause and menopause, the body becomes less efficient at building and maintaining muscle. Declining estrogen levels affect muscle protein synthesis directly, which means the nutrition around your workouts becomes even more important during this season of life.
A peer-reviewed study on women strength athletes published through the National Institutes of Health found that female athletes may require more protein than their sedentary counterparts and may benefit from prioritizing high-quality protein and dietary fat over excessive carbohydrate intake. The study also noted that women rely less on glycogen during resistance exercise compared to men, which has practical implications for how we structure meals: less emphasis on carb-loading, more emphasis on protein quality and overall energy balance.
This is why I coach women individually. A 38-year-old mother of two training three days a week has very different nutritional needs than a 55-year-old woman preparing for her first fitness competition. There is no one-size-fits-all plate. But the principles remain the same: feed your body with intention, not restriction.
What I Don’t Want You to Do
I don’t want you to skip meals because you think training on an empty stomach burns more fat. It doesn’t. It just makes you more likely to lose muscle and crash by noon.
I don’t want you to overthink this to the point where eating becomes stressful. The goal is nourishment, not perfection.
And I don’t want you to rely on supplements as a substitute for real food. A well-timed whole-food meal will always outperform a processed bar wrapped in a health claim. The Academy of Nutrition and Dietetics has long supported a food-first approach to nutrition, and I stand firmly in that camp.
What I Do Want You to Take With You
Your body is not working against you. It’s working for you, every single rep, every single set. The least you can do is meet it halfway with food that respects the effort you’re putting in.
Eat before you train. Eat after you train. Choose whole foods. Prioritize protein. Drink your water. And stop punishing your body for needing fuel.
Strength is not built on restriction. It is built on nourishment, consistency, and trust.
If you’re ready to feel stronger, more energized, and fully supported in how you fuel your body, you can explore nutrition coaching services or reach out to connect with me here.
An Affirmation for You:
I feed my body because I respect what it does for me. I choose nourishment over punishment. Every meal is an act of care, for the woman I am and the woman I am becoming.
Love Yourself,
Jen Calling 💖
Frequently Asked Questions About Building Muscle After 40
Should I eat before a morning workout or train on an empty stomach?
For most women, eating something before training makes a real difference in energy and performance. You don’t need a full meal. Even something small like eggs and toast or Greek yogurt with fruit gives your body fuel to work with. I trained fasted for years before I realized it was holding me back. Once I started eating before sessions, my strength and energy improved immediately.
What’s more important, what I eat before or after my workout?
Both matter, but if I had to pick one, I’d say after. That’s when your body is actively repairing muscle tissue and restoring energy. A meal with 20 to 40 grams of protein and some carbohydrates within about an hour of finishing your session gives your body exactly what it needs to recover and come back stronger for your next workout.
