May is Celiac Awareness Month: What Your Body Might Be Missing on a Gluten-free Diet
Going gluten-free is essential for anyone living with celiac disease, but it’s not always as simple as swapping one product for another. While removing gluten supports gut healing and long-term health, it can also quietly create nutritional gaps if you’re not paying attention to what’s being added back in.
Here’s a closer look at the key nutrients to watch and how to support your body with a more balanced, whole-food approach.
The Fibre Gap (and Why It Matters)
Let’s start with the big one: fibre.
Most people already fall short, but going gluten-free can widen that gap even more. When wheat-based whole grains are removed, they’re often replaced with refined gluten-free products made from white rice or starches that don’t offer much fibre.
Fibre isn’t just about digestion. It supports gut health, helps regulate blood sugar and keeps you feeling satisfied longer. And your gut needs both types:
- Soluble fibre (from beans, oats, fruit) feeds beneficial bacteria.
- Insoluble fibre (from veggies and whole grains) keeps things moving.
Think lentils, chickpeas, chia seeds, flax, quinoa and plenty of vegetables. These are the foods that help rebuild that foundation.
Protein: The Missing Piece in Many Gluten-free Foods
A lot of packaged gluten-free options lean heavily on carbs and fall short on protein. That can leave you feeling hungry sooner and missing out on an important building block for muscle repair, energy and overall resilience.
This becomes even more important if you’re plant-based or navigating multiple food sensitivities.
Good gluten-free protein sources include:
- Legumes like lentils and black beans;
- Quinoa and buckwheat;
- Seeds like hemp and pumpkin; and
- Eggs, dairy or tofu if included.
It doesn’t need to be complicated. Even small additions can make meals more balanced and satisfying.
Bone Health: Calcium and Vitamin D
Calcium isn’t just about dairy, and it’s especially important for those with celiac disease. Many people are diagnosed after years of impaired nutrient absorption, which can impact bone density.
Calcium-rich, gluten-free foods include:
- Leafy greens like kale and broccoli;
- Beans and lentils;
- Seeds like sesame and chia; and
- Fortified plant milks.
Vitamin D plays a key role here too, helping your body actually absorb calcium. In Canada, especially through the winter months, supplementation or fortified foods can make a meaningful difference.
Iron: Energy and Endurance
Iron deficiency is common with celiac disease, particularly for women. Since iron helps carry oxygen through the body, low levels can show up as fatigue, brain fog or decreased stamina.
Plant-based sources like lentils, spinach and pumpkin seeds are great options, but here’s the key: pair them with vitamin C. Add citrus, tomatoes or bell peppers to meals to boost absorption.
Magnesium and Zinc: Small Nutrients, Big Impact
Magnesium supports everything from muscle function to stress response, while zinc plays a role in immunity and healing.
Both can be harder to absorb with gut damage, and both are often under-consumed.
Look to:
- Dark leafy greens;
- Nuts and seeds;
- Legumes; and
- Gluten-free whole grains.
A simple tip: soaking or sprouting grains and beans can improve how well your body absorbs these minerals.
Vitamin D and Vitamin E: Quiet Essentials
Vitamin D often gets attention, but it’s still worth repeating. Between sunscreen, indoor lifestyles and long winters, many Canadians don’t get enough.
Vitamin E, on the other hand, tends to fly under the radar. It acts as an antioxidant, supporting immune health and protecting cells from damage. Seeds, especially sunflower seeds, are one of the easiest ways to boost intake.
B Vitamins: The Overlooked Group
When gluten-containing grains are removed, so are many fortified sources of B vitamins like thiamine, riboflavin, B6 and folate.
These vitamins support energy production, brain function and red blood cell formation.
To fill the gap, focus on:
- Legumes;
- Leafy greens;
- Gluten-free whole grains like quinoa and brown rice; and
- Fortified products when needed.
A gluten-free diet can absolutely be nourishing and balanced, but it works best when it’s rooted in whole foods rather than relying on packaged swaps.
Think less about what’s being taken out and more about what’s being added in. Fibre-rich plants, quality protein and a variety of colourful, nutrient-dense foods go a long way in supporting your body, your energy and your long-term health.
Because going gluten-free isn’t just about avoiding something—it’s about building something better.
