There is no products available in this collection


Vitamin B-100 Complex Supplements Online

Brief Description of Vitamin B Complex Supplements

Vitamin B complex supplements are known as the stress vitamins that help relieve stress and also improve performance, physical energy, and cell metabolism. B vitamins are essential for maintaining optimal health. B complex vitamins play several important roles in the body. B complex vitamins support the nervous system, prevent infection, help with production of healthy red blood cells to produce energy, improve digestion, eye health, (for the growth of red blood cells) and for cardiovascular health.

Types of Vitamin B Complex Supplements

B complex vitamins include Vitamin B tablets, capsules and liquid forms can be found from repairable brands like Flora, Garden of Life, Platinum Naturals, SISU and many more. You can also consider B1 benfotiamine, B2 riboflavin-5-phosphate, B3 niacin inositol hexanicotinate, B5 pantethine, B6 pyridoxal-5-phosphate and B12 methylcobalamin, folate 5-MTHF, from brands like AOR, Genestra, NFH, Thorne and Natural Factors to fulfil those therapeutic needs. Buy B 100 Vitamins online at Nature's Source for free shipping or in store at Nature’s Source and Nature's Signature.

What are Vitamin B Complex Supplements Used For?

Most people can safely benefit from taking a B complex vitamin supplement especially during times of stress. B 100 vitamins are water soluble so the body will take what it needs and you will release what the body didn't need through urination. During hot weather and physical activity, it's important to replenish with vitamin complex supplements.

Functions of Vitamin B in the Body

  • Helps against Anemia
  • Support with Stress
  • Helps During Stressful Periods
  • Supports Nervous System
  • For Vegetarian or Vegan Diets
  • During Pregnancy and Postnatal Period
  • Depression and/or Anxiety, Mood Disturbances
  • Muscle Weakness, Numbness, Tingles in Hands and Feet
  • Fatigue, Stressed
  • Poor Memory and Focus

Top Vitamin B Complex Products Brands & USPs

The Best Vitamin B Complex will combine 8 essential vitamins B1 thiamine, B2 riboflavin, B3 niacin, B5 pantothenic acid, B6 pyridoxine, B7 biotin, B12 and Folic acid. B vitamins work synergistically and therefore work optimally when taken together. There are 4 categories of vitamin B complex supplements. Available are B complex 50 in which 6 of the 8 B vitamins are 50 mg each and vitamin B12 and folic acid are adjusted differently and B 100 Vitamin will contain 100mg for the 6 B vitamins. The third category of B vitamins complexes contain active forms of B vitamins that have higher absorption rates and in specific ratios to treat more therapeutically and also available are wholefood supplements that combine foods and B 100 vitamins for a complete synergistic effect.

Top B 50 Vitamins

Top B 100 Vitamins

  • Natural Factors
  • New Roots
  • Sisu

Top Active B Complexes

  • AOR
  • Thorne
  • Douglas Labs
  • Pure Labs
  • Cytomatrix

Top Vegan B Complex Vitamins

  • Megafood
  • New Chapter
  • Earth, Land and Sea (Natural Factors)

Vitamin B Complex Side Effects

There are very few B Complex Side Effects, however it's advised to take a B complex with food to avoid the feeling of nausea. B vitamins are water soluble and are excreted through sweat and urine so there is little chance of taking too much. It is common to notice a change in color of urine. A common vitamin b complex side effect is a niacin flush. Vitamin B3, niacin promotes blood flow and circulation which can cause a feeling of heat, mild tingling, itch and some redness on the skin. This usually lasts around 20 minutes and can be reduced or prevented by taking B complex vitamins with food.


Pros & Cons of Vitamin B Complex Supplements


  • Aid in Digestion
  • Maintain Healthy Nervous System and Neural System
  • Help Support Stress, Depression and Anxiety
  • Improve Mental and Physical Energy
  • Can Help Relieve Sugar Cravings


  • B 100 Vitamins Are Water Soluble and Are Not Stored in the Body
  • Vitamin B Supplements Work Effectively Together Than Separately
  • Can Cause Nausea So Needs to Be Taken with Food

Why Choose Nature's Source to Buy Vitamin B Complex?

Naturopaths, MD's and natural health practitioners trust Nature's Source and Nature's Signature to find the best Vitamin B Complex in Canada for their clients. They have been serving the public for over 25 years and they care about the health of the community.

Frequently Asked Questions About B Complex Vitamins

Is It Ok to Take a B-complex Every Day?

Taking a b-complex vitamin daily will support your nervous system, brain health, immune system and energy.

How Much B Complex Should You Take a Day?

Each B complex vitamin has its own specific daily recommended dose and should be followed as directed on the label or by your health care practitioner.

When is the Best Time to Take Vit B Complex?

It's best to take a Vitamin B-complex earlier in the day. Taking it too late in the day may disturb your sleep.

Are There Any Side Effects of Taking Vitamin B Complex?

There are two common side effects from taking a B complex. Best Vitamin B complex should be taken with food to avoid nausea, also vitamin B3 (niacin)can cause a niacin flush. This is not harmful but can cause a feeling of heat and or redness to the skin lasting approximately 20 minutes.

Does Vitamin B Complex Make You Gain Weight?

No, taking this vitamin B complex can assist with digestion and absorption of nutrients.

Is It Better to Take B12 or B Complex?

Both have incredible benefits. If you're taking an isolated form of vitamin B12 it's helpful to take a vitamin B complex to ensure a healthy balance of B 100 vitamins in the body is achieved.

What Are the Signs of Vitamin B Complex Deficiency?

Signs you may be deficient in B complex vitamins can be anemia, depression, mood disturbances, fatigue, low energy, poor memory, muscle weakness, numbness and tingles in hands and feet. Consult your doctor to confirm.