Practical nutrition support for women’s health, hormones, and real life.
Personalised support, practical masterclasses, and evidence-based resources for PCOS, endometriosis, insulin resistance, thyroid health, blood sugar balance, and sustainable nourishment.
Meet Kirby
Founder of Nutrition By Kirby | Registered Dietitian | Nutrigenomics Specialist
With over a decade of experience in private practice, I offer evidence-based, personalised nutrition care to help women support their health in a way that feels practical, sustainable, and achievable.
With a special interest in women’s health and hormone health, my approach is rooted in realistic guidance that helps you move away from confusion and toward a way of eating that feels supportive and aligned with your needs.
Consult with me online or in-person for individualised nutrition care tailored to your health journey.
How I Can Support You
1:1 Consultations
Personalised nutrition support tailored to your symptoms, bloods, goals, and lifestyle
Masterclasses
Learn through practical, focused classes designed around specific health concerns and nutrition goals.
Digital Resources
Explore guides, e-books, and PDF’s for everyday support, meal ideas, and education
Featured Masterclasses
Explore practical, evidence-based masterclasses created to help you better understand your health and feel more confident in your nutrition approach.
A practical, evidence-based masterclass to help you understand your hormones, insulin, cravings, energy, without extreme rules or cutting out food groups.
Learn how nutrition can support inflammation, symptom management, digestive health, and overall nourishment with endometriosis.
A practical guide to supporting thyroid health with balanced nutrition, realistic habits, and a whole-person approach.
Popular Resources
Explore practical nutrition guides and supportive tools designed to help you feel more confident in your food choices.
Not Sure Where to Start?
Download a free nutrition resource for practical guidance, supportive ideas, and simple steps to help you get started.
Testimonials
Posted on Susan RenderTrustindex verifies that the original source of the review is Google. Kirby was warm & friendly and her interpretation of my DNA results was extremely helpful and insightful. She was able to explain everything to me in detail.Posted on Rozanne EngelTrustindex verifies that the original source of the review is Google. The DNA interpretation consultation with Dr Kirby Hendricks was invaluable. I appreciated her friendliness, professionalism, and making me feel comfortable throughout my session. I love how detailed she is, and the tailored meal plan has been easy to adapt to, as it is not too restrictive. I still get to enjoy the food I love, but in a more balanced and healthy way. I look forward to the continued work to reach my health and weight goals!Posted on Robin Laiken RietTrustindex verifies that the original source of the review is Google. Such a lovely experience. Firstly , I’ll be forthcoming, I did not attend as many follow-ups as I would have liked(very busy lifestyle). But even so, I got the results and assistance I needed. Kirby was able to identify my “wrong” approaches with food, solve and address them. I’m happy to say those lessons will help me throughout my life. I went to Kirby, because after and during the pandemic I put on quite a lot of weight. I was struggling to maintain weight and lose the weight. I tried my own “google diet” and “instagram diet” approach, but it didn’t workout. I wanted and needed help from a professional, and honestly one of the best life decisions I’ve made. I lost about 20% of my initial weight, I feel better and I love food and eating food. Wonderful service! Kirby is truly worth the visit!Posted on Abigail BruceTrustindex verifies that the original source of the review is Google. My 1st appointment at Nutrition by Kirby was a very good & professional appointment. I will definitely recommend it to anyone with the need to understand your body for better health choices. 10/10 as a rating👌🫶🙏Posted on Yvette WyngaardTrustindex verifies that the original source of the review is Google. Fabulous dietician, already feeling the change in my body and mind, thank you Kirby for kick starting my next phase in lifePosted on Natasha OlivierTrustindex verifies that the original source of the review is Google. After completing my chemotherapy treatment for breast cancer, I gained 16kg and was medically forced into menopause. As a result, I knew I needed professional help to lose the weight, especially since my body also needed proper nutrition to support recovery and restore essential levels. My initial consultation with Kirby was incredibly informative. She is very knowledgeable in her field and, even in a short time, helped me understand how to make better food choices. Thanks to her guidance, I’ve started eating properly and already feel better than I have in a long time.Posted on Yumnah FranseTrustindex verifies that the original source of the review is Google. Dr. Kirby is wonderful and very understanding. She helped me manage my PCOS and infertility in a very short amount of time. I am now pregnant with no medical intervention, only healthy eating and small lifestyle changes.Posted on Taryn BarryTrustindex verifies that the original source of the review is Google. Kirby has helped me get the basics right with a solid focus on education around food and nutrition and not labelling things “good” and “bad”. What stands out is her practical health and nutrition advice that I can easily apply to my everyday life. She shares realistic meal plans and ideas that not only fit my health goals but also stay within my budget, making the process much more manageable. Thanks to her guidance, I’ve developed a better understanding of nutrition and feel more confident in applying what I’ve learnt in order to make healthier choices. If you’re looking for practical, sustainable, and personalized advice, Kirby is the real deal!”Posted on Mahdiyeh “Mae” PakdoustTrustindex verifies that the original source of the review is Google. Kirby is great, she takes her time and really gives great advice on portions and actual recipes and meal plans to help make the change to a healthier lifestyle easy.
Instagram Feed
30+ plants in your weekly diet doesn’t have to be overwhelming, here is two simple examples 🙌🏼😅
#kirbyrd #nutritionbykirby #registereddietitian #dietitiansday #vegetables #plants #30plantsaweek #30plantsaweekchallenge #capetown #southafrica
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If you want the recipe head to my website.
➡️See link in my bio.
#nutritionbykirby # dietitianapproved #highfibre #pcosnutrition #balancedmeals #healthyeatingideas #quickrecipes #easymeals #mealprepideas
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Read this if you’re training hard and eating less: you’re not stuck, you’re under-fuelled. 🫠
The real shift isn’t “hustle harder,” it’s fuel + structure + recovery. When you nourish enough, your body responds: steadier energy, better sessions, calmer hunger, and sustainable fat loss.
This week, try:
• 🍗Eat enough (protein at each meal; carbs around training)
• 🍛Build balanced plates (protein, fibre, healthy fats, colour)
• ⏰Stop skipping meals, consistency beats extremes
• 😌Sleep, manage stress, and take rest days without guilt
#capetowndietitian #registereddietitiansa #SouthAfricaDietitian #nutritionbykirby #kirbyrd #weightloss #notlessbutbetter #sustainablefatloss
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PCOS Awareness Month 🤍
Living with PCOS can be challenging, but small nutrition shifts really add up. From steadying blood sugar to calming inflammation, the right plan can help you feel more in control of your body.
Start here:
👉 Build balanced meals (protein + fibre-rich carbs + healthy fats + lots of veg)
👉 Don’t skip meals: eat every 3–4 hours to support steadier insulin + energy
👉 Anti-inflammatory pattern: fish, olive oil, legumes, veg, fruit, herbs & spices
👉 Hydration: 8–10 glasses/day; herbal teas count
Personalised nutrition matters so remember PCOS looks different for everyone (symptoms, labs, goals). The best results come from a plan tailored to you, not one-size-fits-all.
If you want a personalised plan, I work 1:1 with women across SA.
#PCOSAwareness #PCOSNutrition #InsulinResistance #HormoneHealth #AntiInflammatoryDiet #BloodSugarBalance #LowGI #EvidenceBasedNutrition #RegisteredDietitian #PCOSSupport #CapeTownDietitian #nutritionbykirby #kirbyrd
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Vitamin D matters for PCOS 💚
Deficiency is common (and often overlooked) and is tied to insulin resistance, inflammation, irregular cycles and fertility markers. If you’re deficient, you can’t fix it with food alone, get tested and supplement appropriately.
🐟Baseline support: fatty fish, eggs/fortified dairy, sun-exposed mushrooms and short, sensible sun expose.
Book testing & a personalised plan via the link in bio. 💫
#PCOSAwarenessMonth #PCOS #VitaminD #InsulinResistance #WomensHealth #HormoneHealth #FertilityNutrition #AntiInflammatory #Dietitian #CapeTownDietitian #PCOSSouthAfrica #nutritionbykirby
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Mackerel is seriously underrated 🐟
I grabbed these for just R37 way more affordable than salmon, and packed with anti-inflammatory omega-3s.
If you’re working on lowering inflammation, supporting hormones, or managing PCOS, insulin resistance, endo, or thyroid health… this recipe is for you. 😏
Paired it with high-fibre carbs + loads of veggies for that blood sugar balance 💪
Try it, tag me and let me know what you think!
Grab the full recipe on my website. See link in my bio 🐟
#nutritionbykirby #capetowndietitian #dietitiancapetown #dietitiancenturycity #kirbyrd #insulinresistance #hashimotos #AntiInflammatoryFoods #HormoneHealth #PCOSNutrition #EndoDiet #omega3benefits
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Balanced meals play a powerful role in supporting blood sugar and insulin levels. These five fibre-rich options are designed to keep you nourished, satisfied, and better manage cravings.
Bonus, I have created a high-fibre foods list download, so whether you’re working on your gut health, PCOS, endometriosis, insulin resistance, or just eating more mindfully this fibre list makes it simple to add more fibre to your day, every day.
See my website for more valuable downloads ⏬
#nutritionbykirby #dietitian #fibre #guthealth #easymeals #highfibremeals #dietitiancenturycity #bloodsugarbalance #insulinresistance
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With the right support, nourishment, and a little patience everything changed.
This is what happens when you stop under-eating and start nourishing your body.
#weightloss #nutritionbykirby #kirbyrd #dietitiancapetown #centurycity #postmenopause #diabetes
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To help combat inflammation, I always start with a food-first approach. What you eat every day can either fuel inflammation or help reduce it and these nutrient-dense foods do the latter! 💪
Let me know in the comments, are you adding any of these into your meals? 👇
#nutritionbykirby #capetowndietitian #centurycity #capetown #dietitiannutritionist #kirbyrd #antiinflammatoryfoods #womenshealth #hormonehealth #insulinresistance #endometrisosis #pcos #hashimotos
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The latest research on diet and endometriosis pain just confirmed what I see in practice: food can help, but only when it’s tailored to you.
It’s not about cutting everything out, it’s about working with your body.
Full blog up now (link in my bio).
#nutritionbykirby #kirbyrd #dietitiancapetown #dietitiancenturycity #EndometriosisSupport #AntiInflammatoryNutrition #EndoDietitian #nutritionforendo
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Feeling off but told your labs are “normal”?
In my latest blog, I break down the blood tests I recommend every woman request yearly, from thyroid and iron panels to insulin markers and key nutrients to uncover what’s really going on beneath the surface.
I also created a free pdf download for you, so comment “checklist” below. 👇🏽
👉 to read my full blog click the link in my bio or go to my website.
#bloodtests #thyroid #insulin #iron #bloodsugar #nutrition #nutritionbykirby #nutritonist #dietitian #centurycity
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It’s winter and that means delicious comfort meals that’s packed with veggies, fibre, healthy fats and lean protein. This lamb and barley soup is a hit in my household. Try it and let me know what you think 💭
Get the recipe on my website. 🖥️
#nutritionbykirby #kirbyrd #dietitiancapetown #centurycity #pcos #endometriosis #hashimotosthyroiditis #insulinresistance #recipe
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Your hormones are made from what you eat.
Support them with the right foods, think fibre, healthy fats, and blood sugar balance. 🌿
✨ New blog up now: Why Food Is Important for Hormone Balance
🔗 Link in bio.
#hormones #nutritionbykirby #dietitian #pcos #insulinresistance #hashimotos #endometriosis #capetown #nutrition
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I was invited to Expresso to chat all things Hashimoto’s and why nutrition matters.
Women are 7–8 times more likely to develop Hashimoto’s than men. This autoimmune condition brings chronic, low-grade inflammation that can leave you feeling foggy, puffy, stiff, and just plain exhausted.
Some of the symptoms include:
🟡Brain fog
🟡Cold hands and feet
🟡Fatigue
🟡High cholesterol
🟡Muscle pain
🟡Low mood or depression
I sat down with Phytoceutics and Expresso to talk about what Hashimoto’s really feels like, and how small nutrition changes can support your thyroid and immune system.
👉 Missed the episode? Head to the link in my bio to watch the full interview and learn practical ways to reduce inflammation and calm those antibodies.
#Hashimotos #ThyroidHealth #NutritionTips #WomenWithHashimotos #AutoimmuneSupport #ExpressoShow #dietitianapproved #nutritionbykirby #kirbyrd #dietitiancapetown #dietitiancenturycity
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I created the BetterDay app to help my patients feel supported beyond our sessions and hearing how it’s made a difference in their lives honestly means the world to me 💛
From feeling more in control of their habits, to understanding their bodies better… this is exactly why I built it.
Swipe through to read what some of my beautiful patients are saying 💬
#betterday #behaviourchange #webapp #womenhealthsupport #betternotperfect #habitchange #nutritionbykirby #dietitian #capetown
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BetterDay is finally here! 🥹
I have been talking about this for a while and it’s finally ready! As a Registered Dietitian with over a decade of experience and a passion for helping people achieve their health goals, I’ve come to realize that one of the biggest challenges patients face is consistency.
That’s why I’m thrilled to introduce BetterDay, a comprehensive behaviour change web app designed to empower you to take control of your nutrition, lifestyle, and overall well-being.
Whether you’re working on improving your energy, managing PCOS or endometriosis, regulating blood sugar, or supporting your thyroid BetterDay gives you a practical, private space to track the things that matter most.
Click the link in my bio to get started 🙏🏽
#nutritionbykirby #betterday #kirbyrd #dietitiancapetown #centurycity #resigistereddietitian #behaviourchange #habits
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Because I work with people managing inflammatory conditions, I always recommend aiming for 4-5 cups of veggies per day to maximize these benefits. Small, consistent changes can have a big impact on your health! 🌿
What’s your favourite way to add more veggies to your meals? Drop your go-to in the comments! ⬇️
#kirbyrd #nutritionbykirby #registereddietitian #veggies #centurycity #eatyourveg #dietitiancapetown
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You can find this recipe on my website 😊
#nutritionbykirby #kirbyrd #dietitiancapetown #capetown #dietitian #dietitiancenturycity #resigistereddietitian #dietitiannutritionist #pasta #veggies #vegetables #vegetablespasta
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🔥 Chronic inflammation is like a fire that never fully burns out but omega-3s can help put out the flames!
Omega-3 fatty acids are powerful anti-inflammatory nutrients that support insulin resistance, Hashimoto’s, Endometriosis, PCOS, gut health, and more.
But not all omega-3s are created equal! Focus on EPA & DHA (found in fatty fish & quality supplements) for the best benefits.
🛑 Signs of chronic inflammation:
Fatigue & brain fog
Joint pain & muscle aches
Digestive issues (bloating, constipation, diarrhea)
Unexplained weight gain
Headaches
Skin irritation
🌿 Food first always! Increase your omega-3 intake by:
- Eating fatty fish 3x per week (make use of canned fish like sardines, salmon, pilchards, etc.)
- Adding flaxseeds & walnuts to meals
Have you been adding fatty fish to your weekly meal plan?
#nutritionbykirby #kirbyrd #dietitiancenturycity #registereddietitian #fattyfish #omega3s
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Are you eating enough fatty fish? Here’s a great budget friendly option you can add to your meal planning.
#kirbyrd #nutritionbykirby #dietitiancenturycity #registereddietitian #pokebowl #pokebowlinbudget #salmonpoke
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