Your top 10 questions on weight loss injections, answered

By Sasha Parkin, Nutritional Therapist at Wild Nutrition

Increasingly, we’re speaking with scores of women who are either using GLP-1 RAs (glucagon-like peptide-1 receptor agonists) such as Semaglutide (Ozempic, Wegovy) and Tirzepatide (Mounjaro) or considering them to support weight loss. 

In a sea of conflicting information, we know the journey can be confusing and even isolating. You’re not doing it wrong; you just haven’t had the right support. To find out if this supplement is right for you we always you to book in to chat with one of our nutritional therapists with a free 15 minute weight management consultation. Whatever route you’ve chosen, we’re here for you. That’s why we’ve compiled our top recommendations for your most frequently asked questions… 

1. Can weight loss injections cause nutrient deficiencies?

Like many drugs, GLP-1 can affect the way the body absorbs and uses nutrients due to both the way it’s metabolised and its side effects, which can include reduced appetite, nausea and vomiting. The main nutrients affected are protein, fibre, Vitamins B12, C, D, E, A, and K, Iron, Calcium, Magnesium, Potassium and Choline*. 

2. How then can I ensure I’m getting all the right nutrients?

If you’re nauseous or have a low appetite, prioritising nutrient-dense foods and snacks is key. Great options include:

• Snacks: bone broth, eggs, veggie sticks with hummus, or trail mix

• Meals: stews, soups, protein-rich salads & protein smoothies.

3. I feel nauseous - what should I do?

Balancing blood sugar is crucial for reducing nausea, so we recommend:

• Eating smaller meals more often: Always include protein, and limit high sugar foods
• Injecting before bedtime: Some find it helps to sleep through the worst of the nausea 
• Staying hydrated: Sip on ginger or herbal tea and swerve fizzy and sugary drinks.

Remember to stay hydrated...
this helps distribute nutrients around the body. While a good quality multi-nutrient can also provide additional support.

4. I’m constipated/have diarrhoea. Any advice? 

• Chronic constipation or diarrhoea can be down to the medication’s side effects, either due to the medication itself or the dosing. If you’ve been suffering for a while, speak with your prescribing doctor or GP for the best way forward. Bowel changes are common, and each requires a different approach:For constipation, fibre, hydration and supporting gut health are key to help keep things moving. Focus on wholefoods, pre- and probiotics and diversity where possible.

• For diarrhoea, replenishment is essential, so maintain water intake and aim for quality nutrition that’s gentle on the stomach. Soups and bone broths are great for energy levels. 

5. I feel tired and lethargic. What can I do?

Weight loss is demanding on the body and requires a lot of energy. Foods rich in B Vitamins, Magnesium and protein are all great energy sources to keep levels up, but it’s also important to watch out for the classic nutrient deficiencies highlighted earlier - especially Iron, Vitamin D and B12. Be sure to have your levels tested if symptoms persist. 

6. How can I make sure I get enough fibre? 

Variety is key - incorporate fruits, vegetables and wholegrains. If eating is a struggle, add them to smoothies with nuts and seeds. And if not, eating little and often can also help mobilise.

7. Can weight loss injections affect my period?

When the body is in a catabolic state, like rapid weight loss, it can impact hormones if the body lacks fuel. If you’ve noticed a change in your menstrual cycle, you likely need to increase the calories and nutrients you’re consuming. Speak with our Nutritional Therapists for further advice. 


 

8. I’m in perimenopause/menopause and on weight injections. How can I best support myself?

Weight transitions can be more challenging in perimenopause and menopause due to hormone fluctuations and slowed metabolism. If you’re leaning on medical support for weight loss, focus on maintaining good muscle mass and bone density with strength training and bone- and muscle-supporting nutrition like protein, Calcium, Vitamin D and Magnesium. Still unsure? Book your free call with our Nutritional Therapist team for further guidance.  

9. How do I manage sugar cravings when I come off injections?

Many factors can contribute to cravings, but there’s plenty you can do to manage them so they don’t manage you…
 

• Prioritise sleep: When you sleep poorly, you’re much more likely to reach for sweet foods. Finding a wind-down routine to support a solid night’s sleep can have significant impact.  

• Reduce stress: Stress can lead us to find dopamine hits from comfort food, which is often more processed and sugar-laden. Nature walks, breathing exercises and meditation are all great tools to support your nervous system and help lower stress. 

• Balance blood sugar: Think wholegrains, protein, fibre and healthy fats to keep you feeling fuller for longer and stabilise blood glucose levels.

• Exercise: This plays a key role in improving insulin resistance**. A daily walk after a meal does wonders.

• Hydrate: The body can confuse thirst and hunger cues. Aim for 6-8 cups of water per day. 

I’m worried about the impact on my skin as I lose weight. What can I do to help support it?

When going through rapid weight loss, it’s common to see sagging, volume loss and a loss of skin glow. To support your skin’s health and keep it looking and feeling its best, don’t overlook the importance of quality protein, Collagen, Vitamin C, Hyaluronic acid and healthy fats like Omega 3. 

If you’re struggling to manage your weight or with any hormonal condition, including PCOS or endometriosis, or you still have questions, lean on our team of qualified Nutritional Therapists. Book here for a supportive ear and confidential chat.

References:
*Johnson, B. et al. (2025) ‘Investigating nutrient intake during use of glucagon-like peptide-1 receptor agonist: A cross-sectional study’, Frontiers in Nutrition, 12. 

**Bellini, A. et al. (2024). Exercise Prescription for Postprandial Glycemic Management. Nutrients, 16 (8), 1170.