Genotoxicity testing of a fenugreek extract

Area of Science:

• Nutritional Science
• Toxicology
• Food Science

Background:

• Fenugreek seeds are traditionally used for diabetes management.
• Fenugreek contains 4-hydroxyisoleucine (4-OH-Ile), a key component for blood glucose control.
• Current food applications of fenugreek are primarily as a flavoring agent.

Purpose of the Study:

• To evaluate the genotoxicity of a fenugreek seed extract (THL) containing 4-OH-Ile.
• To assess the safety of THL as a novel food ingredient for blood glucose management.
• To determine the suitability of THL for incorporation into food products for individuals with diabetes.

Main Methods:

• Standard genotoxicity testing battery: reverse mutation assay, mouse lymphoma forward mutation assay, and mouse micronucleus assay.
• Evaluation of a fenugreek seed extract (THL) with a minimum of 40% 4-OH-Ile.
• Testing aligned with US Food and Drug Administration (FDA) guidelines for food ingredients.

Main Results:

• The fenugreek seed extract (THL) was found to be non-genotoxic in all conducted assays.
• No evidence of mutagenicity or genotoxicity was observed under the tested conditions.
• The safety evaluation supports the use of THL in food products.

Conclusions:

• The fenugreek seed extract (THL) is not genotoxic, indicating its safety for consumption.
• Negative genotoxicity results support the potential use of THL in food formulations for diabetes management.
• A substantial safety margin exists, as anticipated dietary intake is significantly lower than tested doses.