B Vitamin Deficiency Checklist

May 28, 2025

Here’s a super helpful B Vitamin Deficiency Checklist you can use to see if any red flags pop up for you. These symptoms often sneak in quietly, but once you spot them, it’s easier to support your system.

🔋 Low Energy & Metabolism

  • Fatigue that doesn’t improve with rest

  • Low stamina or difficulty exercising

  • Brain fog or sluggish thinking

  • Feeling “wired but tired” throughout the day

Commonly linked to: B1, B2, B3, B5, B12

🧠 Mood & Nervous System

  • Anxiety or quick temper

  • Low mood or depressive feelings

  • Poor stress tolerance or burnout

  • Numbness, tingling, or “pins and needles” sensations

  • Trouble focusing or staying mentally sharp

Commonly linked to: B6, B9, B12

🩸 Hormones & Period Health

  • Intense PMS mood swings or cramping

  • Hormonal acne

  • Irregular or painful menstrual cycles

  • Sensitivity to histamines or trouble detoxing hormones

Commonly linked to: B6, B5, B9

💅 Skin, Hair, Nails

  • Hair thinning or brittle nails

  • Dry, flaky, or dull skin

  • Cracks at the corners of your mouth

  • Facial or scalp rashes

Commonly linked to: B2, B3, B7 (Biotin)

🧃 Digestion & Appetite

  • Reduced appetite

  • Nausea or unsettled stomach without a clear reason

  • Digestive issues like diarrhea or bloating

  • Heavy or uncomfortable feeling after meals (possible low stomach acid)

Commonly linked to: B1, B6, B12

🧬 Detox & Methylation

  • Feeling worse after sulfur-rich foods like eggs or garlic

  • Sensitivity to alcohol, perfumes, or chemical smells

  • Elevated homocysteine levels (from a blood test)

  • Slow healing wounds or easy bruising

Commonly linked to: B6, B9, B12
(especially relevant if you have an MTHFR gene variant)

🔎 Higher Risk of Deficiency If You:

  • Are under long-term stress or dealing with burnout

  • Take hormonal birth control, antacids, or metformin

  • Eat a vegetarian or vegan diet (especially B12 risk)

  • Have gut conditions (like IBS, celiac, or SIBO)

  • Regularly drink alcohol (can deplete B1, B6)

 

Recent Posts

Archives

well humans logo

Fix Your Gut and Feel Your Best

carla alpert functional medicine practitioner

Hello and Welcome! My name is Carla Alpert, and I’m a Board Certified Functional Medicine Health Coach and Diagnostic Practitioner, focusing on the gut and how it affects your overall health. Think of me as a health detective and wellness coach working in partnership with you to restore your health. We work together to uncover the contributing factors to your chronic symptoms, to eat well, sleep well, move more and stress less.

I love the GI MAP test because it helps my clients and I discover gut dysfunction that may be contributing to daily digestive issues as well as other chronic symptoms like anxiety, fatigue and brain fog. I created this GI MAP Coaching Package to help you stop struggling with your health and get back to living your best life.

How It Works »

Book a Complimentary Consult
Order Functional Test
functional medicine health coaching logos

What Clients Are Saying

Carla really helped me to figure out my gut pain and issues after so many years. I finally feel like I have energy and clarity around my health! She was so easy to talk to and helped me discover problem areas that were causing me so much distress, when no other doctors could help.
VICTORIA

Well Humans changed my life. I was diagnosed with Hashimoto’s Thyroiditis accompanied by chronic hives. It sprang up out of nowhere and caused bizarre “food allergies” that I’d never had before. Because of Carla’s coaching and dietary recommendations as well as GI Map testing, I can happily say that I am now symptom-free, and I have been in remission for over a year now. All of the doctors I saw told me I would have to deal with my symptoms because there was no cure, but here I am, back to living a mostly normal life. I highly recommend Carla and Well Humans for anyone looking for real answers and treatments that work.
KALYN

When working with Carla, you are in capable, compassionate, knowledgeable and caring hands. Carla truly cares about your well being and wants to help you be the healthiest that you can be. My health was truly suffering and with her guidance and suggested testing, we uncovered some issues that nobody else had uncovered, despite my going to some of the top rated medical institutions. My health and pain improved greatly due to Carla’s sleuthing…she knew where to look. Through many health challenges, I was quite emotional and Carla showed me what compassion looks like. If you want to truly improve your health, start with Well Humans.
BETH

Over years, I’ve tried various “alternative” medicine as well as conventional “western” medicine approaches. Skin ailments are hard to treat – so many aspects of a life can produce skin symptoms. I enthusiastically recommend Well Humans and Carla for a simple reason – I’ve experienced sustained, substantial improvement! I have hardly ever posted a review of anything, but writing this was an easy choice to make. I wish you all the best in your journey towards better health!
JON

I searched the U.S. to find someone who does what Carla does. Carla has used her knowledge, support and expertise to optimize my health and well-being with a blend of scientific medical tests, supplements and diet changes. I wasted a lot of time on my hunches, the internet and experiments with supplements and food and NOW i have an actual plan. Superb supportive knowledge and guidance. I highly recommend Carla. Grateful.
LISA

I never knew that I had a gluten allergy and intolerance until Carla discovered it in my blood work! I’m so grateful that she made this discovery and I have been gluten free ever since. I sleep better, don’t feel bloated and have much more energy. It was a life-changing insight.
ROB

Carla is very knowledgeable and kind. She helped me navigate a health issue with grace and the utmost care. Carla goes above and beyond with her clients and I highly recommend her. She genuinely cares!
ALLISON

I have been working with Carla for quite some time and she has helped me turn my life and health around. She is non-judgmental, and always wants the best for her clients. She is extremely knowledgeable and has a fantastic bedside manner. She has truly changed my life for the better and I will always be grateful for everything she has done.
ROB

Book a Complimentary Consult

Pin It on Pinterest