Why B Vitamins Matter (and How to Know If You Need More of Them)

B vitamins don’t get the same spotlight as trendy supplements or wellness fads, but they’re absolute powerhouses. They keep your energy steady, your mood balanced, your hormones supported, and your nervous system functioning smoothly.

Because they’re water‑soluble, your body doesn’t store them — meaning you need a regular supply from food.

Here’s a simple guide to what each B vitamin does, what deficiency can look like and where you can find them naturally.

B1 — Thiamine

What it does

• Helps turn food into energy

• Supports your nervous system

• Important for stress resilience

Signs you might be low

• Fatigue

• Irritability

• Poor concentration

• Tingling in hands/feet

Where to find it

• Whole grains

• Beans

• Nuts and seeds

• Pork

• Peas

B2 — Riboflavin

What it does

• Supports energy production

• Helps maintain healthy skin and eyes

• Important for iron metabolism

Signs you might be low

• Cracks at the corners of the mouth

• Dry skin

• Light sensitivity

• Low energy

Where to find it

• Eggs

• Almonds

• Dairy

• Mushrooms

• Spinach

B3 — Niacin

What it does

• Supports metabolism

• Helps with hormone production

• Important for skin health

Signs you might be low

• Low mood

• Poor concentration

• Skin irritation

• Fatigue

Where to find it

• Chicken

• Tuna

• Peanuts

• Brown rice

• Mushrooms

B5 — Pantothenic Acid

What it does

• Supports adrenal function

• Helps create stress hormones

• Important for energy and metabolism

Signs you might be low

• Fatigue

• Headaches

• Irritability

• Digestive discomfort

Where to find it

• Avocado

• Sweet potatoes

• Lentils

• Eggs

• Broccoli

B6 — Pyridoxine

What it does

• Supports mood regulation

• Helps with hormone balance

• Important for immune function

Signs you might be low

• PMS symptoms

• Low mood or anxiety

• Poor sleep

• Cracked lips

• Low immunity

Where to find it

• Bananas

• Chickpeas

• Salmon

• Potatoes

• Poultry

B7 — Biotin

What it does

• Supports hair, skin, and nails

• Helps with energy production

Signs you might be low

• Brittle nails

• Hair thinning

• Dry skin

• Low energy

Where to find it

• Eggs

• Almonds

• Seeds

• Cauliflower

• Sweet potatoes

B9 — Folate

What it does

• Supports cell growth and repair

• Essential for pregnancy

• Helps with mood and cognition

Signs you might be low

• Fatigue

• Brain fog

• Low mood

• Mouth sores

Where to find it

• Leafy greens

• Beans

• Lentils

• Citrus fruits

• Asparagus

B12 — Cobalamin

What it does

• Supports nerve health

• Helps make red blood cells

• Essential for energy and mood

Signs you might be low

• Extreme tiredness

• Pins and needles

• Low mood

• Memory issues

• Pale skin

Where to find it

• Meat

• Fish

• Eggs

• Dairy

  
  

Why B Vitamins Work Best Together

The B vitamins are a team — they support each other, overlap in function, and often work in the same pathways. That’s why a varied diet is so powerful. When you eat a wide range of whole foods, you naturally get a broad spectrum of B vitamins without needing to micromanage.

The “missing” numbers (if you were wondering!) were simply reclassified as science evolved.

If You’re Feeling “Off”, It Might Be Your B’s

Low energy, mood dips, brain fog, hormonal wobbliness, poor sleep — these can all be signs your body needs more support, not punishment.

In kinesiology sessions, I often see how stress, digestion and nutrient absorption all interact.

Sometimes the issue isn’t what you’re eating — it’s how your body is coping.

We look at:

• Where your system is under pressure

• What nutrients your body is struggling to use

• How stress is affecting your energy

• What simple shifts will support your whole system

  
  

Your body is clever. It just needs the right ingredients.