The B Vitamin Breakdown - What They Actually Do & When You May Need More

B vitamins just don’t get the spotlight they deserve. They are absolute powerhouses when it comes to energy, mental clarity, mood, and hormone regulation — especially for women in their 30s, 40s, and beyond.

What are B Vitamins, and Why Do They Matter?

B vitamins are a group of water-soluble nutrients that support:

  • Energy production (B1, B2, B3, B5, B6)

  • Brain and mood function (B6, B9 folate, B12)

  • Nervous system regulation

  • Hormone detox pathways (liver support) (especially helpful in perimenopause)

  • Red blood cell formation

  • Healthy skin, hair, and nails

You can naturally support your B vitamin intake through a varied diet: whole grains, legumes, nuts, seeds, leafy greens, citrus, avocados, mushrooms, and fortified cereals provide many of the B vitamins; dairy, eggs, and fish are good sources too, while vitamin B12 is found primarily in animal products (meat, fish, dairy, eggs) or fortified plant-based foods. Together, these foods help cover the spectrum of essential B vitamins for energy, metabolism, and nervous system health.

However, chronic stress (B5, B6 and B12 especially), poor diet, gut issues (some bacteria synthesize certain B vitamins), certain medications (like the pill), and alcohol can all deplete your B-vitamin levels — often without you realizing requiring a good quality B complex supplement.

Signs You Might Be Low in B Vitamins:

  • Fatigue or brain fog

  • Low mood or anxiety

  • Irritability or PMS

  • Cracked lips or mouth sores

  • Poor stress tolerance

  • Tingling hands or feet

Methylated B-Vitamins: What’s the Deal?

Many people have trouble converting standard forms of B-vitamins into active forms due to common gene variations (like MTHFR). Methylated forms (like methylcobalamin and methylfolate) are more bioavailable and better absorbed.

What to Look For in a Supplement:

  • A balanced B-complex with methylated forms (especially B12 and folate); B vitamins work best all together!

  • No artificial colours, fillers, or unnecessary additives

  • Ideally taken in the morning (they can be energising for some people

Do not be surprised if your urine ends up being neon yellow while taking a B complex formula. This is completely normal :)

Pro Tip: Methyfolate or folate are KEY when looking for a prenatal supplement to prevent neural tube defects.


Courtney Rae Jones is a Registered Holistic Nutritionist. She is also a Culinary Nutrition Expert having completed her certification in alternative & specialized diets through the Academy of Culinary Nutrition. She specializes in digestive health and balancing women’s reproductive hormones. To work with Courtney, please contact us.