Weight Loss With Rheumatoid Arthritis South Africa
If you have rheumatoid arthritis (RA) and you are struggling to manage your weight, you are not imagining it — the disease itself works against you. Chronic inflammation, corticosteroid treatment, fatigue and joint pain all conspire to make the number on the scale creep upward even when you are eating carefully. At the same time, carrying extra weight drives up inflammation and makes joint pain worse, creating a frustrating cycle.
The good news: with the right strategy, South Africans with RA can lose weight safely and sustainably. This guide explains the mechanics of RA-related weight gain and — more importantly — what you can actually do about it.
Why Rheumatoid Arthritis Causes Weight Gain
RA is an autoimmune disease where your immune system attacks the lining of your joints. This systemic inflammation affects far more than your joints — it disrupts hormones, metabolism and body composition in ways that directly promote weight gain.
1. Chronic Inflammation and Metabolic Changes
RA inflames your whole body, not just your joints. Elevated levels of inflammatory cytokines — TNF-α, IL-1, IL-6 — disrupt insulin signalling and leptin (the "fullness" hormone). Many RA patients experience sarcopenic obesity: losing muscle while gaining fat, even with no change in calorie intake. Your metabolic rate drops as muscle disappears, making weight management harder over time.
2. Corticosteroids — The Biggest Culprit
Prednisone and cortisone injections are frontline RA treatments, and they are very effective at controlling flares. But they come with well-known weight consequences:
- Appetite surge — corticosteroids boost hunger signals and make calorie restriction extremely difficult
- Fluid retention — water weight accumulates, especially around the face and ankles
- Fat redistribution — fat moves to the abdomen, upper back ("buffalo hump") and face ("moon face")
- Insulin resistance — blood sugar rises, driving fat storage; "steroid diabetes" can develop
- Muscle wasting — steroids break down muscle protein, lowering your resting metabolic rate
The impact is dose- and duration-dependent. Even low-dose prednisone (5–7.5 mg/day) used long-term causes measurable changes in body composition.
3. Pain-Limited Movement
When your hands, wrists, knees and feet hurt, exercise feels impossible. Reduced physical activity lowers your daily energy expenditure, but your appetite does not adjust downward to match — so the calorie surplus gets stored as fat. Morning stiffness (often lasting an hour or more in active RA) further limits the hours available for activity.
The Anti-Inflammatory Diet for RA Weight Loss
Diet is your most powerful lever — it both reduces calorie intake AND directly lowers the inflammatory load on your joints. The Mediterranean-style anti-inflammatory diet is the best-researched approach for RA patients.
Eat More Of
- Oily fish — pilchards, sardines, mackerel, salmon (omega-3 fatty acids directly suppress inflammatory cytokines)
- Olive oil — extra-virgin, 2–3 tablespoons daily (oleocanthal has similar action to ibuprofen)
- Colourful vegetables — spinach, broccoli, red peppers, butternut, carrots, beetroot
- Legumes — lentils, sugar beans, chickpeas (high fibre, plant protein, anti-inflammatory)
- Berries and citrus — blueberries, strawberries, oranges (anthocyanins, vitamin C)
- Whole grains — brown rice, oats, whole-wheat bread (rather than white, refined versions)
- Nuts and seeds — walnuts, flaxseeds, chia seeds (omega-3 ALA)
- Rooibos tea — rich in antioxidants (aspalathin, quercetin); calorie-free and caffeine-free — an ideal daily drink for SA patients
- Turmeric (with black pepper) — curcumin is a well-studied anti-inflammatory; add to curries, soups or golden milk
Eat Less Of
- Red and processed meat — arachodonic acid in red meat can increase inflammatory prostaglandins
- Refined carbohydrates and sugar — white bread, white rice, cooldrinks, cakes — spike blood sugar, worsen inflammation
- Seed oils high in omega-6 — sunflower oil, vegetable oil (use olive or avocado oil instead)
- Fried and ultra-processed food — chips, fast food, commercial biscuits — pro-inflammatory trans fats
- Excess alcohol — interacts with methotrexate (a common RA drug); also inflammatory
A Note on Banting and RA
Many South Africans try Banting (low-carb, high-fat) for weight loss. Some RA patients report less joint pain on low-carb — possibly because reducing refined carbs lowers inflammation. However, heavy reliance on red meat (a staple of some Banting approaches) could worsen inflammation. If you Bant with RA, focus on olive oil, avocado and oily fish as your fat sources, and keep red meat moderate.
Exercise for RA: Moving Without Making Things Worse
Exercise is essential for weight loss with RA, but the wrong type will trigger flares and leave you bedridden. The key is protecting your joints while still challenging your cardiovascular system and muscles.
Best Exercise Choices for RA
- Hydrotherapy / pool walking — water buoyancy takes 80–90% of body weight off your joints while the resistance burns significant calories. Many SA public pools and some Virgin Active / Planet Fitness branches offer hydrotherapy or aqua aerobics classes.
- Swimming — excellent full-body workout, zero joint impact
- Stationary cycling — low-impact cardio, easy to start and stop during flares
- Yoga and tai chi — improve flexibility, balance and strength without stressing joints; multiple SA studios offer gentle/therapeutic versions
- Resistance bands — build muscle (to counter steroid-induced wasting) with less joint stress than free weights
- Walking — start with 10–15 minutes on good days and build gradually; wear supportive shoes
Exercise Rules for RA Flares
- Do NOT push through a flare — rest the inflamed joint, but keep other body parts moving if possible
- Exercise in the afternoon rather than morning to avoid stiffness peak
- Apply heat to stiff joints before exercise and ice to swollen joints after
- Start every session with 5–10 minutes of gentle range-of-motion movements
South African Physiotherapy Support
A physiotherapist experienced in autoimmune arthritis can design a personalised exercise programme. Ask your rheumatologist for a referral. If you have medical aid, physio for RA is covered under the PMB benefit (see below).
Managing Steroid Weight Gain
If prednisone is unavoidable, these strategies help minimise weight gain:
- Ask about steroid-sparing options — biologics (adalimumab, etanercept) and JAK inhibitors (tofacitinib, baricitinib) often allow steroid doses to be reduced or stopped. Discuss this with your rheumatologist.
- Take prednisone with food in the morning — reduces GI side effects and aligns with your body's natural cortisol rhythm
- Cut sodium aggressively — reducing salt minimises fluid retention (avoid tinned food, processed meat, packet soups)
- Increase potassium — bananas, avocado, sweet potato, spinach counterbalance sodium and reduce water retention
- Time your calories — if steroid-induced hunger peaks in the afternoon/evening, front-load your calories to breakfast and lunch
- Monitor blood sugar — long-term steroid use can cause "steroid diabetes." If you are on prednisone for more than 3 months, ask for an HbA1c or fasting glucose test
- Do NOT stop steroids abruptly — always taper under medical supervision
RA Medications and Weight: What to Expect
| Medication | Weight Effect | Notes |
|---|---|---|
| Prednisone / cortisone | Weight GAIN | Appetite, fluid, fat redistribution; main culprit |
| Methotrexate | Neutral (slight loss) | Nausea early on; no meaningful long-term effect on weight |
| Hydroxychloroquine (Plaquenil) | Neutral / slight loss | Improves insulin sensitivity; can support weight loss |
| Leflunomide (Arava) | Neutral | Occasional nausea; minimal weight impact |
| TNF inhibitors (adalimumab, etanercept) | Neutral or slight gain | Small weight gain reported in some studies; allows steroid reduction which helps overall |
| JAK inhibitors (tofacitinib, baricitinib) | Neutral | No significant weight effect; allows steroid sparing |
Prescribed Minimum Benefits (PMB) for RA in South Africa
Rheumatoid arthritis is a Prescribed Minimum Benefit (PMB) condition under the Medical Schemes Act 131 of 1998. ICD-10 codes M05 (seropositive RA) and M06 (other RA) are listed in the PMB schedule. This means:
- Your medical aid must cover rheumatologist consultations, blood tests (CRP, ESR, anti-CCP, RF), X-rays and prescribed medication for RA at cost
- You cannot be forced to pay co-payments for PMB-level care from a Designated Service Provider (DSP)
- Biologics are increasingly covered at PMB level by most schemes after DMARD failure — confirm with your scheme
- Physiotherapy for RA is typically covered under the PMB benefit but may be subject to annual limits — check your specific plan
If your medical aid refuses PMB cover for RA treatment, lodge a complaint with the Council for Medical Schemes (CMS).
South African Resources for RA Patients
- Arthritis Foundation South Africa (AFSA) — patient support, education, local support groups: arthritisfoundation.co.za
- South African Rheumatism & Arthritis Association (SARAA) — connects patients with rheumatologists nationally
- SADAG — mental health support for chronic pain patients: 0800 456 789
- Discovery Health, Bonitas, Momentum Health — all have chronic disease management (CDM) programmes for RA — enrol to access additional benefits
- Clicks / Dis-Chem pharmacy — chronic medication dispensing and medication counselling for RA drugs
Practical 7-Day Sample Eating Plan for RA
This is a general guide — not medical advice. Consult a registered dietitian for a personalised plan, especially if you are on methotrexate (avoid mega-doses of folic acid antagonists) or if you have steroid-related blood sugar issues.
- Breakfast: Oats with walnuts, blueberries and cinnamon — or two eggs with avocado on rye toast
- Mid-morning: Rooibos tea with a small handful of almonds
- Lunch: Large salad with pilchard/sardine, olive oil dressing, chickpeas, cucumber, tomato and spinach
- Afternoon: Apple or orange + small portion of hummus
- Dinner: Baked salmon or mackerel with roasted broccoli, sweet potato and olive oil — or lentil curry with brown rice
- Evening (optional): Rooibos or chamomile tea — turmeric golden milk if you prefer something warm
If sodium reduction is important (steroid fluid retention), avoid adding salt at the table, swap tinned fish for fresh or low-sodium tinned, and skip packet soups and stock cubes.
Key Takeaways
- RA promotes weight gain through inflammation, steroids, fatigue and pain-limited movement — it is not a willpower problem
- The anti-inflammatory Mediterranean diet lowers both calories and joint inflammation simultaneously
- Low-impact exercise (hydrotherapy, swimming, cycling) is the safest way to burn calories without triggering flares
- Work with your rheumatologist to reduce steroid doses where possible — biologics and JAK inhibitors often allow this
- RA is a PMB condition: your medical aid must cover core treatment costs under the Medical Schemes Act
- Small, consistent changes beat dramatic interventions — aim for 0.5–1 kg per month to protect joints and mood
- Always consult your rheumatologist and a registered dietitian before making major diet or exercise changes
Remember: weight loss is a tool for better joint health and quality of life — not a performance goal. Be patient with your body. RA is a marathon, not a sprint.