RECALL RECORD — CLASS IIRecall closedF-2178-2017/FDA enforcement

Source Naturals Dietary Supplement Vitamin D-3

What you need to know

Class II
  • What happened

    Testing of Vitamin D-3 as a result of a consumer complaint found specific lots to have lower concentrations than product specifications of ingredient labeling.

  • Health risk

    The product may cause temporary or medically reversible health consequences, or the probability of serious harm is remote. A safety issue that does not fit the standard pathogen, allergen, chemical or quality categories.

  • Action required

    Stop taking the supplement. Check the lot and UPC codes below, then return it to the retailer or contact the manufacturer about a refund. Seek medical advice if you have concerns about exposure.

Recall closed · classified by the FDANationwide (US)More supplements

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Product identification

Source: FDA FOOD

Brand nameThreshold Enterprises LTD
Recalling firmThreshold Enterprises LTDScotts Valley, CA, United States
UPC / barcodes
0 21078 02274 90 21078 02275 60 21078 02276 3
Lot / date codes
  • Lot number/expiry date SN22274: 1 oz bottle: FG-77168, 03/19; FG-72299, 09/18; FG-73645, 09/18; FG-63547, 01/18; FG-55486, 08/17; FG-55923, 08/17
  • FG-59576, 08/17. XUB078: 1 oz. bottle: FG-77171, 03/19; FG-77172, 03/19; FG-77173, 03/19; FG-79391; 03/19; FG-72190, 09/18
Distribution area
Nationwide

Nationwide

United States

Quantity affected129, 331 total units
Recall initiationFDA report date: May 10, 2017
FDA recall numberF-2178-2017

Beyond the headline

The recall, in context

Threshold Enterprises LTD initiated this supplements recall on December 12, 2016. The FDA enforcement report states: Testing of Vitamin D-3 as a result of a consumer complaint found specific lots to have lower concentrations than product specifications of ingredient labeling. The FDA report lists distribution as: Nationwide.

The FDA enforcement report describes the reason as: Testing of Vitamin D-3 as a result of a consumer complaint found specific lots to have lower concentrations than product specifications of ingredient labeling.

Source Naturals Dietary Supplement Vitamin D-3 was made or distributed by Threshold Enterprises LTD in Scotts Valley, CA, United States. This page reflects FDA report F-2178-2017, dated May 10, 2017.

Why this is a Class II recall

Class II means the product may cause temporary or medically reversible health consequences, or the probability of serious harm is remote. In this recall, a safety issue that does not fit the standard pathogen, allergen, chemical or quality categories.

FDA definition

The product may cause temporary or medically reversible health consequences, or the probability of serious harm is remote.

What to do now

  1. 1

    Stop using it

    Do not eat, drink or take the affected product.

  2. 2

    Check the codes

    Compare the UPC and lot code against the table above.

  3. 3

    Return or discard

    Contact the retailer or recalling firm about a refund, and dispose of the product safely.

Consumer safety guide

Product safety recall

Symptoms to watch for

The official enforcement report describes the specific risk. Follow the recall notice, check the product codes and do not use a product that may be affected.

Higher-risk groups

Children, pregnant people, older adults and people with weakened immune systems should take extra care when a product's safety is uncertain.

What to do now

  1. 1Stop using or eating the product and keep it away from children and pets.
  2. 2Check the UPC and lot/date codes on this page and follow the official recall notice for disposal or return.
  3. 3Seek medical advice if anyone develops severe or worrying symptoms after exposure.

Read the official source record for the specific hazard and instructions.

This is general consumer safety information, not medical advice or a diagnosis. Follow the official recall notice and contact a healthcare professional if you have concerns about exposure or symptoms.

Frequently asked

Questions about this recall

What is the Source Naturals Dietary Supplement Vitamin D-3 recall?

Threshold Enterprises LTD recalled Source Naturals Dietary Supplement Vitamin D-3 in an FDA Class II enforcement action reported as F-2178-2017. Testing of Vitamin D-3 as a result of a consumer complaint found specific lots to have lower concentrations than product specifications of ingredient labeling.

What are the symptoms of Product safety recall exposure?

The official enforcement report describes the specific risk. Follow the recall notice, check the product codes and do not use a product that may be affected.

Who is most at risk from Product safety recall?

Children, pregnant people, older adults and people with weakened immune systems should take extra care when a product's safety is uncertain.

What should I do if I bought this product?

Stop taking the supplement. Check the lot and UPC codes below, then return it to the retailer or contact the manufacturer about a refund. Seek medical advice if you have concerns about exposure. Stop using or eating the product and keep it away from children and pets. Check the UPC and lot/date codes on this page and follow the official recall notice for disposal or return. Seek medical advice if anyone develops severe or worrying symptoms after exposure.

How do I get a refund from Threshold Enterprises LTD?

Contact the recalling company or the retailer where you purchased the product, quote the FDA recall number and ask about a refund or replacement. Keep the packaging, lot code and proof of purchase where possible. The FDA does not issue consumer refunds. Reference FDA recall F-2178-2017 and keep the packaging, lot code and proof of purchase if you have them.

Is the Threshold Enterprises LTD recall still active?

The FDA lists this recall as recall closed. It remains relevant if you still have the affected product or need to identify a historical recall.

Where can I verify this recall?

This page is normalized from the openFDA enforcement record F-2178-2017. You can verify it directly using the official source link on this page. VerifyRecall updates its index from public FDA enforcement data and does not replace advice from the FDA, the recalling firm or a healthcare professional.

Verify before you act.

VerifyRecall is independent and not affiliated with the FDA. Always confirm the latest status on the official source record.

Official source

Brand history

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Record last synced from official openFDA enforcement data on November 14, 2026. Source record: official FDA notice.