Blog Blood sugar

Normal A1c, but You Still Crash Every Afternoon

By Barbie Fisher · September 13, 2026 · 4 min read

It’s 2:30 in the afternoon. You were fine an hour ago. Now you’re shaky, foggy, and short with everyone, and the only thing that sounds good is something sweet or another cup of coffee.

But your doctor checked your blood sugar. Your A1c came back normal. Your fasting glucose looked fine.

So what’s going on?

What A1c can and can’t tell you

HbA1c is a valuable test. It reflects your average blood sugar over roughly the past few months, and it’s an important marker to keep an eye on.

But an average is just that, an average. It can’t show you the ups and downs within a single day. Someone whose blood sugar dips sharply every afternoon and rises after meals can still land on a perfectly reasonable average.

In other words, a normal A1c is good news, and I’ll always call it good news. It just doesn’t answer every question.

Swings are often about timing, not chemistry

Here’s one of the things I most want people to hear: blood sugar swings are often less about something being wrong with your body’s chemistry and more about timing and stress.

When you go a long stretch without eating, your body still needs fuel. It reaches for stress hormones to keep your blood sugar up. That works for a while, but it costs you, and it often catches up in the form of an afternoon crash.

I see this pattern constantly in people who:

  • Wake early and don’t eat for hours
  • Have coffee first and breakfast “later,” or not at all
  • Work through lunch
  • Eat well, just not often enough

The encouraging part? Timing is far easier to change than chemistry.

What your hair test can add

On a Hair Tissue Mineral Analysis, the relationship between calcium and magnesium (the Ca/Mg ratio) gives me clues about your blood sugar tendencies. When it runs high, I often see a tendency toward lows, the “hangry” pattern. When it runs low, it can point to a different kind of stress on blood sugar.

Your sodium and potassium balance and your adrenal pattern also come into play, because the stress system and blood sugar are so closely connected.

The Functional Lab Panel included in my package goes beyond A1c, too. It includes fasting insulin and leptin alongside HbA1c. Together they give a fuller picture of how your body is handling fuel, not just where your average landed.

One bite, earlier

For many people, the single highest-value change isn’t a diet. It’s a few bites of something with protein and fat in it, eaten earlier than usual. A boiled egg. A piece of cheese. A spoonful of nut butter. Something you can set out the night before and eat standing up. It isn’t a food list. It’s one bite, earlier.

Gentle anchors for steadier afternoons

These are the everyday habits I come back to most. None of them are rules to perfect. Think of them as anchors:

  • Eat within an hour of waking. Even something small helps set the tone for the whole day.
  • Eat before your coffee. Your stress hormones are naturally highest in the morning. Caffeine on an empty stomach adds fuel to that fire.
  • Eat every three to four hours. Long gaps ask your stress system to cover the difference.
  • Include protein each time you eat. Protein helps blood sugar stay steadier and supports mineral transport.
  • Go easy on juice and sweetened drinks. They can create quick rises and falls that leave you lower than before.

If your days start before dawn, or if your schedule makes regular meals hard, we work with that. Small and realistic beats perfect and impossible.

Minerals and blood sugar go together

Blood sugar swings can also drain minerals, especially magnesium and zinc. And when minerals are low, steady energy is harder to maintain. It becomes a loop.

That’s why I don’t approach blood sugar and minerals as two separate projects. Supporting one tends to help the other, and both are part of the foundation I build first.

When to look further

Afternoon crashes are common, but they’re worth paying attention to. If you have symptoms that worry you, or if your blood sugar has been flagged by your doctor, please keep them in the loop. I’m happy to work alongside your medical care.

And remember: timing explains a lot, but not everything. Sometimes the labs point to something more, and that’s exactly why I like having both a hair test and a blood panel to look at together.

If the afternoon slump sounds familiar

You don’t have to keep white-knuckling your way through 3 p.m. If you’d like to understand what’s behind your swings, the New Leaf Mineral Reset includes your HTMA, a Functional Lab Panel with insulin, leptin, and HbA1c, and six months of support as we make small changes together. Not sure yet? Start with the good-fit check.

Barbie Fisher · Certified HTMA Practitioner · New Leaf Health
coachbarbwithnewleafhealth@gmail.com

This article is intended to provide helpful, informative material. Barbie Fisher is a certified HTMA practitioner and health coach, not a medical doctor; this content is not a substitute for medical advice, diagnosis, or treatment. Always seek the advice of your physician or qualified health provider with questions regarding a medical condition, dietary changes, or health objectives. This article is educational and is not intended to diagnose, treat, cure, or prevent any disease.

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