What variations of thiamine exist?

Helps turn food, especially carbohydrates, into energy and keeps nerves and the heart working normally. Deficiency is more likely with heavy alcohol use, weight-loss surgery, or long-term vomiting. It comes in 4 forms, and they aren't all the same. Here's how they differ.

For education only. What's right for you depends on your health and your medications, so check with your provider before you start or switch. Book a consult 

Our top pick

The nerve one

Benfotiamine

A fat-friendly form that raises B1 levels well. The most studied for nerve support.

Good for: Nerve support

  • Also consider
  • Budget-friendly: the standard one (Thiamine HCl)

Every form, in plain words

Our top pick

The nerve one

Benfotiamine

A fat-friendly form that raises B1 levels well. The most studied for nerve support.

Good for: Nerve support

Also good

The standard one

Thiamine HCl

The usual, inexpensive form. Your body absorbs it well in normal amounts.

Good for: Everyday use · Budget-friendly

Also good

The multivitamin one

Thiamine mononitrate

Common in multivitamins and fortified foods. Works much like thiamine HCl.

Also good

The garlic-born one

Allithiamine (TTFD)

A fat-friendly form first found in garlic. Less studied than benfotiamine.

Spotting a good one on the shelf

Look for

  • Look for 'Benfotiamine' on the label (the nerve one)

Watch out for

  • Nerve-pain products that claim to treat a condition
  • Several forms of B1 in one product, which makes the total hard to tell

Check with your provider first if…

  • You drink heavily, had weight-loss surgery, or have severe vomiting in pregnancy. These can cause a serious shortage that needs medical care, not just a supplement.
  • You take a 'water pill' like furosemide long term, which can lower B1
  • You're pregnant or breastfeeding. The amount in a prenatal is fine. Ask before adding more.

In Dr. Lesher's store

5 products in Dr. Lesher's dispensary have thiamine. Here's which form, where the label says.

Dr. Lesher, ND

Ready to find the root cause?

Dr. Lesher is a Naturopathic Doctor who focuses on autoimmune and chronic conditions in women. Since 2020, she's helped hundreds of patients stop managing symptoms and start healing.

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