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Why Blood Sugar Stability Is a Skin Strategy

If you’re doing everything right with food and your skin is still flaring, this is the one mechanism worth checking before anything else.

Overhead flat-lay of grilled salmon, leafy greens, avocado, and berries on a stoneware plate
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If you’re doing “everything right” with your diet and your skin is still flaring, I want you to look at one thing before anything else: how stable your blood sugar actually is throughout the day, not just what you’re eating.

Here’s the connection nobody draws for you. When you eat in a way that spikes insulin — refined carbs, sugar, meals too light on protein and fat to hold you steady — your body responds by upregulating an enzyme called aromatase. Aromatase converts other hormones into estrogen, in fat tissue, skin, and elsewhere in the body, completely separate from what your ovaries are doing. In perimenopause, when your progesterone is already dropping and your estrogen-to-progesterone ratio is already tilted, that extra insulin-driven estrogen production adds fuel to a fire that’s already lit. More estrogen relative to progesterone means more sensitized mast cells, which means a lower threshold for the exact reactivity you’re trying to calm down.

I want to be precise about how strong this connection is, because I’d rather you trust me than oversell you. The insulin-to-estrogen pathway is well established. How much of your estrogen dominance it explains, on its own, is something we figure out through your data, not something I can promise from a blog post — it’s one piece of a larger picture, not the whole explanation.

What I can tell you with confidence is this: stabilizing blood sugar is one of the highest-leverage things you can do for your skin, full stop.

What that actually looks like

Let protein and fat lead the plate

This is the single biggest lever for blunting an insulin spike — not a portion size or a rule, just what you build the meal around first.

Notice the afternoon crash

If you’re reaching for something sweet mid-afternoon, that’s usually a sign an earlier meal didn’t have enough protein and fat — not a willpower problem. Eat when you’re hungry, and let that earlier meal actually hold you.

Don’t fear fat

Dietary fat slows the absorption of whatever carbohydrate you do eat, which means a smaller insulin response overall.

This is exactly why the Three Drivers — grains, sugar, and seed oils — sit at the center of everything I teach. Removing them isn’t about restriction. It’s about taking the foot off the gas pedal that’s been pushing your estrogen and your mast cells in the wrong direction at the worst possible time in your hormonal life.

You’re not imagining the connection between what you eat and what your skin does three hours later. There’s a mechanism behind it, and it’s one you have real control over.

A Quick Note This content is for educational and informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease or medical condition. Amy Jeffreys, Primal Integrative Wellness LLC, is a Certified Primal Health Coach, not a physician or licensed medical provider. Nothing here constitutes medical advice. Always consult your qualified healthcare provider before making changes to your diet, lifestyle, skincare, or supplement routine.

Ready to work together?

Ready to find the root — not just manage the symptoms?

If this is sounding familiar — the flares, the guesswork, the advice that never quite fits your body — you don’t have to keep guessing. Let’s connect the dots between your hormones, your blood sugar, and your skin, and build a plan that actually addresses what’s driving it.

Reach out and start connecting the dots.