๐ Side Effects of Mounjaro, Ozempic & Other GLP-1 Injections in the UK: Nutrient Deficiencies & How to Support Your Health
GLP-1 receptor agonists โ including Ozempicยฎ (semaglutide), Mounjaroยฎ (tirzepatide), Wegovyยฎ, and Rybelsusยฎ โ are now available through the NHS and privately in the UK for weight management and type 2 diabetes.
By slowing digestion, reducing hunger hormones and increasing fullness, they can bring significant results. But many people also experience side effects โ some of which may be linked to reduced nutrient intake over time.
โ ๏ธ Common Side Effects of GLP-1 Injections (UK Patients Report)
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Digestive Symptoms
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Nausea, vomiting, diarrhoea, constipation, bloating or indigestion.
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Often lead to reduced food intake and variety.
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Headaches & Lightheadedness
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Can be related to hydration levels, blood sugar changes or nutrient shortfalls.
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Hair Thinning
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Sometimes follows rapid weight loss or insufficient intake of iron, zinc, biotin and protein.
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Tiredness & Low Energy
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Linked to reduced calorie intake and lower levels of B-vitamins, magnesium and iron.
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Muscle Cramps or Weakness
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Magnesium and potassium may be depleted more quickly.
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๐งฌ Why Nutrient Deficiencies Happen on GLP-1s
GLP-1 injections donโt directly remove nutrients, but they can reduce how much and how well you absorb them:
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Eating less often โ fewer opportunities to get enough vitamins and minerals.
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Low-fat diets โ reduced absorption of vitamins A, D, E and K.
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Digestive side effects โ increased loss of electrolytes and minerals.
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Narrower food choices โ missing entire nutrient groups.
๐ฅ Key Nutrients to Keep an Eye On
| Nutrient | Why It Matters | Risk on GLP-1s |
|---|---|---|
| Magnesium | Sleep quality, nerve function, muscle performance | Reduced intake + diarrhoea losses |
| Iron | Energy, oxygen delivery | Less red meat + reduced absorption |
| B12 & Folate | Brain function, energy, red blood cells | Lower intake on smaller meals |
| Vitamin D & K2 | Bone health, immunity, calcium balance | Fat-soluble + low-fat diets |
| Zinc & Selenium | Hair, skin, thyroid function | Under-consumed and poorly absorbed |
| B-Complex | Energy production, cognition, metabolism | Depleted with low-calorie diets |
๐ฟ Why a Good Multivitamin Helps
If youโre eating less due to appetite suppression, a comprehensive multivitamin can help bridge nutritional gaps โ but only if itโs:
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Easy to absorb (bioavailable nutrient forms)
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Free from fillers and binders
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Designed to avoid nutrient competition
๐ How TRINITY Fits In
TRINITY by Arbor Vitamins is a three-part daily multivitamin system โ ideal for GLP-1 users in the UK who want to maintain nutrient balance without unnecessary additives.
| USP | Benefit for GLP-1 Users in the UK |
|---|---|
| Morning / Day / Night | Matches your body clock for energy, recovery and sleep. |
| Nutrient Synergy | Keeps competing nutrients separate for better absorption. |
| Bioavailable Nutrients | Includes methylated B12 & folate, iron bisglycinate, magnesium glycinate/malate. |
| No Fillers or Binders | No maltodextrin, magnesium stearate, seed oils or preservatives. |
| Vegan Capsules | Gentle on digestion, no sugar-loaded gummies or chalky tablets. |
๐ง Summary
GLP-1 treatments like Ozempic, Mounjaro, Wegovy and Rybelsus can be powerful tools for weight loss and blood sugar control, but reduced appetite and digestive changes can lead to nutrient deficiencies that impact energy, mood, hair and recovery.
A well-formulated multivitamin like TRINITY supports all-day nutrient needs, helping you stay balanced and energised while on your GLP-1 journey.
๐ Shop TRINITY here โ for smarter, all-day nutritional support.
FAQs
Q: What are the most common side effects of Ozempic or Mounjaro in the UK?
A: Nausea, diarrhoea, constipation, headaches, tiredness, dizziness, hair thinning and muscle cramps are common.
Q: Can Ozempic or Mounjaro cause vitamin or mineral deficiencies?
A: Yes โ indirectly, by reducing appetite, food intake and nutrient absorption.
Q: Which nutrients should I take while on GLP-1 medication?
A: Magnesium, iron, vitamin D, vitamin K2, zinc, selenium, folate, B12 and other B-vitamins.
Q: Can I take TRINITY multivitamins with my GLP-1 injection?
A: Yes โ TRINITY is designed for all-day absorption and contains no ingredients that interfere with GLP-1 medications.
