GLP-1 medications like Ozempic, Wegovy and Mounjaro have rapidly gained popularity for their effectiveness in managing type 2 diabetes and supporting weight loss. But while GLP-1 medications offer significant health benefits, they also come with nutritional considerations that shouldn’t be overlooked.

At Randox Health, we’re committed to helping you optimise every aspect of your wellbeing. If you’re currently taking or considering GLP-1 medications, it’s important to understand how these treatments might affect your micronutrient levels and what you can do to maintain balance.


How GLP-1 medications work

GLP-1 (glucagon-like peptide-1) receptor agonists mimic the action of the natural GLP-1 hormone. They help regulate blood sugar by increasing insulin secretion, slowing stomach emptying and reducing appetite. These mechanisms not only improve glycaemic control but also contribute to significant weight loss.


The hidden impact: nutrient deficiencies

While these medications are effective, they can reduce your intake of essential vitamins and minerals in three key ways:

  • Reduced Food Intake
    GLP-1 medications often curb appetite so effectively that individuals eat substantially less. This can lead to insufficient intake of key nutrients, particularly if the diet isn’t carefully balanced
  • Digestive Side Effects
    Common side effects like nausea, vomiting and diarrhoea can interfere with the body’s ability to absorb nutrients, even when intake is adequate
  • Metabolic Changes
    These drugs can alter metabolism, affecting how your body uses and stores certain nutrients, potentially increasing your requirements

Vital vitamins and minerals to watch

If you’re using GLP-1 medications, monitoring and supporting your nutrient levels is essential. The following are particularly important:

  • Vitamin D
    Helps support bone health, immune function and insulin sensitivity. Vitamin D deficiency is common, especially in those with limited sun exposure or low dietary intake
  • Vitamin B12
    Critical for energy production, nerve function and red blood cell formation. A B12 deficiency can lead to fatigue, neurological issues and anaemia
  • Magnesium
    Involved in over 300 biochemical reactions in the body. It also helps manage constipation, a common issue for people on GLP-1 medications

Take control of your health

To ensure you’re getting the nutrients you need while on GLP-1 medication, it’s vital to assess your current vitamin and mineral levels. At Randox Health, we offer a comprehensive Vitamin and Mineral blood test to identify any deficiencies and help you take proactive steps to support your health.


GLP-1 medications are transforming lives – but optimal health goes beyond weight and blood sugar. By staying informed and checking your micronutrient levels regularly, you can make the most of your treatment while safeguarding your long-term wellbeing.

Book your Vitamin and Mineral test today and take a step toward total wellness.