Here at T1D Functional Nutrition, whole, real food always comes first. But when you’re managing the job of an organ and living a full, modern life, sometimes targeted supplements aren’t just helpful — they’re necessary.
Today’s soils are depleted, our food supply isn’t what it used to be, and blood sugar management places extra demands on the body. Supplements can help fill in those nutrient gaps and provide the foundation for better energy, improved blood sugar balance, and long-term health.
That’s why adding the right supplements to your daily rhythm can make all the difference.
But with so many options out there, you might be wondering:
“What supplements should I actually take?”
The Foundation List
Based on my experience working with thousands of clients living with T1D, here’s where almost everyone should start:
- Methylated B Vitamins
- Omega-3 Fatty Acids
- Vitamin D + K2
- Magnesium (glycinate form is often best)
- Prebiotic + Probiotic (or SCFA support)
- Electrolytes (without added sugar)
These six supplements cover the most common gaps. Together, they build a strong foundation, support steady blood sugar, and help you feel your best. As your needs change, you can layer in more specific support — but start here.
Breaking It Down
Methylated B Vitamins
Why they’re important: B vitamins are burned through faster under stress and blood sugar fluctuations. They support energy, brain health, and nervous system balance.
Brands I recommend: I use practitioner-grade options through my Fullscript dispensary. For this product, I like using Pure Encapsulation or Orthomolecular.
Typical dose: Daily, often in the morning. B vitamins can be stimulating and therefore evening is not the first recommendation.
With food or water? Best with food & water.
Tip: Some people don’t tolerate methylated B vitamins because their bodies can’t process the extra methyl groups well, which may cause anxiety, headaches, or sleep issues. When this is a barrier, I look to dose them in lower amounts and also I look to support detox pathways.
Omega-3 Fatty Acids (Fish Oil or Algal Oil)
Why they’re important: Reduce inflammation, support heart and brain health, and improve insulin sensitivity.
Brands I recommend: Third-party tested for purity and potency. My product choice for someone with fish oil comes down to medical background, medications, food avoidances/allergies and goals. Would you like me to recommend an item for you? My email: Kelly@t1dfunctionalnutrition.com
Typical dose: 1–2 grams/day of combined EPA + DHA.
With food or water? With food, especially one that includes fat.
Tip: Fish oil burps usually happen because the oil oxidizes, is poor quality, or isn’t fully absorbed. I always caution buying fish oil in bulk from Costco’s and the likes. I love love Costco, but not for supplements.
Vitamin D + K2
Why they’re important: Vitamin D supports immune function, hormone balance, and bone health. K2 ensures calcium is deposited in bones, not arteries.
Brands I recommend: High-quality, combined D3 + K2 formulas. I often use Vitamin D/K2 from Orthomolecular or Microbiome Labs.
Typical dose: Depends on labs — I often recommend 2,000–5,000 IU/day.
With food or water? With food containing fat.
Tip: Did you know? Vitamin D helps you absorb calcium, but Vitamin K2 tells it where to go.
D gets the calcium in, K2 makes sure it lands in your bones—not your arteries.
That’s why they’re best taken together for strong bones and a healthy heart.
Magnesium (Glycinate)
Why it’s important: Supports over 300 functions including insulin sensitivity, muscle recovery, sleep, and stress response.
Brands I recommend: Magnesium glycinate for calming and sleep support. I have seen consistent positive feedback from Pure Encapsulation Magnesium Glycinate. Would you like me to put together a recommendation for you? My email: Kelly@t1dfunctionalnutrition.com
Typical dose: 200–400 mg/day.
With food or water? Best at night, with or without food.
Tip: Take magnesium glycinate before bed—its calming effect on your muscles and nervous system can help you fall asleep faster and sleep deeper.
Prebiotic + Probiotic (and SCFA Support)
Why they’re important: Gut health drives immune balance, nutrient absorption, and even blood sugar stability. A strong gut helps reduce inflammation and autoimmunity risk.
Brands I recommend: Rotating probiotic blends + prebiotic fibers (such as partially hydrolyzed guar gum or inulin). My recommendations for these are very individualized. I welcome you to email me and I can help suggest a product for your unique needs. My email: Kelly@t1dfunctionalnutrition.com
Typical dose: Daily, variety is key.
With food or water? Usually with food.
Tip: Research shows people with T1D often have reduced SCFA-producing bacteria, which may worsen inflammation and glucose control. Additionally for people with type 1 diabetes, probiotics can lower inflammation, support gut health, and may even improve HbA1c and reduce insulin needs. Prebiotics—fibers that feed good bacteria—help improve insulin sensitivity and stabilize blood sugars, especially when eaten regularly from foods like beans, flax, or fibrous veggies.
Electrolytes (Sugar-Free)
Why they’re important: Blood sugar highs, lows, and insulin shifts alter fluid balance. Electrolytes (sodium, potassium, magnesium) help maintain hydration, focus, and stable energy.
Brands I recommend: Clean mixes with no added sugar or fillers.
Typical dose: 1 packet/day, more if active or in hot weather.
With food or water? Mix with water anytime.
Tip: LMNT and Buoy have proven well with my client population.
LMNT discount link: Here
Buy discount link: Here
Quality Matters
While I use certain brands more often than not, I’m open to trying any product that is:
- The proper form (bioavailable and effective)
- The right potency
- Third-party tested
- Backed by research
That’s why I often recommend practitioner-grade options through Fullscript.
Want Personalized Recommendations?
Everyone’s needs are unique. If you’d like me to help you choose the right supplements, send me an email. I’ll ask about:
- Your health history
- Current medications
- Allergies
- Health goals
- What you’re already taking
From there, I can create a custom recommendation for you in Fullscript — with a discount — so you can feel confident about what you’re taking and why.
The Bottom Line
Supplements aren’t a replacement for real food — but for those of us navigating type 1 diabetes, they can be the bridge between surviving and thriving. Start with the foundation six: B vitamins, Omega-3s, Vitamin D/K2, Magnesium, Probiotic + Prebiotic, and Electrolytes.
Think of this cheatsheet as your starting point — a way to strengthen your foundation so you can feel more energized, resilient, and in control of your health.
