This is a huge mistake. Keto exercise is not broken. Your approach is broken. Your body runs on different fuel now. Fat instead of sugar. This changes everything about how you should work out. Different exercises work better. Different timing works better. Different intensity works better.
Most gym advice assumes you eat carbs. High intensity. Push harder. Go faster. Lift heavier. This works on carbs. Your muscles have stored sugar called glycogen. Quick energy. You can push hard for short bursts. Recover. Push again.
On keto you have almost no glycogen. Your muscles run on fat. Fat burns slower. But it lasts longer. You cannot do explosive quick bursts as easily. But you can go steady for hours. This is not weakness. This is different fuel giving different performance.
Keto exercise done correctly builds more muscle and burns more fat than carb-based training. How? Because your body becomes a fat burning machine. 24 hours daily. Even at rest. Even sleeping. Always burning fat. This accelerates fat loss dramatically compared to carb eaters who only burn fat during workouts.
Building muscle on keto is easier than people think. You do not need carbs to build muscle. You need protein. Resistance training. Progressive overload. Rest. All of these work perfectly on keto. Many bodybuilders now use keto and build incredible physiques. More defined. Leaner. Stronger.
But you must follow keto exercise rules. These are different from normal fitness advice. Do it wrong and you struggle. Do it right and you transform your body faster than ever before. Within 30 days you notice major changes. More muscle definition. Less body fat. Better endurance. Stronger lifts.
Why Keto Exercise Transforms Your Body Faster
When you combine proper keto diet with smart exercise your body composition changes faster than diet or exercise alone. This is not opinion. This is proven science. Here is what happens:
- Fat burning increases by 200 to 300 percent during workouts because your body uses stored fat for energy instead of recently eaten carbs creating massive calorie deficit.
- Muscle definition improves dramatically within 3 to 4 weeks as water weight drops and subcutaneous fat decreases revealing muscle detail underneath.
- Recovery speeds up significantly because ketones reduce inflammation allowing muscles to repair faster between workouts with less soreness.
- Endurance improves after 3 to 4 week adaptation period as your body learns to burn fat efficiently giving you hours of steady energy.
- Strength maintains or increases despite no carbs because adequate protein plus progressive overload builds muscle regardless of carb intake.
- Stubborn belly fat melts away first because keto specifically targets visceral abdominal fat which responds better to fat-adapted exercise.
- Overall body recomposition happens where you lose fat and gain muscle simultaneously something nearly impossible on high carb diets.
People who follow keto exercise protocols report looking leaner more muscular and more defined at same body weight. Clothes fit better. Muscles show through. Abs appear. All from proper exercise matched to ketogenic metabolism.
1. Strength Training: The Foundation of Keto Muscle
Lifting weights is the most important exercise on keto. More important than cardio. More important than HIIT. Strength training tells your body to keep muscle while losing fat. Without it your body burns muscle along with fat. You end up skinny fat. Weak. Flabby despite losing weight.
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Track every workout to ensure progressive overload and consistent muscle growth |
Why Strength Training Works on Keto
When you lift heavy weights your muscles get tiny tears. Your body repairs these tears building them bigger and stronger. This process requires protein not carbs. As long as you eat enough protein 0.8 to 1 gram per pound bodyweight your muscles grow.
Carbs help with explosive power. But building actual muscle tissue requires protein and mechanical tension from lifting. Progressive overload means gradually lifting heavier weights or doing more reps. This works perfectly on keto once you adapt.
Studies show people on keto build just as much muscle as carb eaters when protein is equal and training is consistent. The difference is keto people lose more fat simultaneously. They end up leaner and more defined at same muscle mass.
Best Strength Exercises on Keto
Focus on compound movements that work multiple muscles simultaneously. These give best results with limited energy. Squats work legs glutes and core. Deadlifts work entire back legs and grip. Bench press works chest shoulders and triceps. Pull-ups work back and biceps. Overhead press works shoulders and triceps.
Do 3 to 4 strength sessions weekly. Each session 45 to 60 minutes. Work different muscle groups each day. Monday upper body push. Wednesday lower body. Friday upper body pull. This allows recovery between sessions.
Start with 3 sets of 8 to 10 reps per exercise. Use weight you can barely complete with good form. Rest 2 to 3 minutes between sets. This rest period is crucial on keto. Your muscles need time to clear metabolic waste without quick glycogen refill.
Progressive Overload Strategy
Every week try to lift slightly more weight or do one more rep. This gradual progression builds muscle steadily. Write down weights and reps in notebook or phone app. Track your progress. Aim to improve every session even by tiny amounts.
If you cannot add weight or reps for 2 weeks straight you hit plateau. Change something. Different exercise variation. More sets. Slower tempo. Drop sets. Keeps muscles adapting and growing.
Many people find they need to reduce volume slightly on keto compared to carb diet. Instead of 5 sets do 3 to 4 quality sets. Instead of training 6 days weekly do 3 to 4 days. Quality over quantity. Each set should be hard focused effort.
💡 Strength Truth: You build muscle from protein and progressive resistance not carbs. Keto provides perfect muscle-building environment with high protein adequate calories and reduced inflammation for faster recovery.
2. Low Intensity Cardio: The Fat Burning Sweet Spot
Low intensity steady state cardio called LISS is perfect for keto. Walking. Light jogging. Cycling at easy pace. Swimming leisurely. These activities burn almost pure fat for fuel. On keto you have unlimited fat to burn. This makes LISS incredibly effective.
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Walking 30 to 60 minutes daily burns pure fat on keto without exhaustion |
Why LISS Works Better on Keto
Your body has two energy systems. Aerobic uses oxygen and burns mostly fat. Anaerobic does not use oxygen and burns mostly glucose. High intensity exercise is anaerobic. Low intensity is aerobic.
On keto your aerobic system becomes super efficient. You burn fat easily at low intensities. You can exercise for hours without getting hungry or tired. Your fat stores provide 40,000 plus calories of available energy. You never run out.
High intensity exercise requires glucose. On keto you have very little glucose stored. So high intensity feels much harder. You gas out quickly. Cannot maintain pace. This is not fitness problem. This is fuel availability problem.
LISS matches perfectly with keto fuel. You stay in aerobic zone. Burn pure fat. Feel great. Can sustain for long durations. Burns hundreds of calories while feeling easy and enjoyable.
Best LISS Activities
Walking is king. 30 to 60 minutes daily at pace where you can talk comfortably. This burns 150 to 300 calories mostly from fat. Do it fasted in morning for maximum fat burning. Your body has no food in stomach so it must burn stored fat immediately.
Cycling at easy pace for 45 to 90 minutes. Swimming laps without pushing too hard. Hiking on trails. Rowing machine at comfortable speed. Any activity you can sustain for 30 plus minutes without getting out of breath.
Keep heart rate at 60 to 70 percent of maximum. Calculate max heart rate as 220 minus your age. If you are 40 your max is 180. Your LISS zone is 108 to 126 beats per minute. This feels easy almost too easy. That is correct. You should be able to hold conversation.
When to Do LISS
Morning fasted LISS is most effective for fat loss. Wake up. Drink water with salt. Go walk 30 to 60 minutes. Your body burns stored fat for entire walk. No food in system to burn first. This accelerates fat loss significantly.
Evening LISS after dinner helps digestion and reduces stress. Walk 20 to 30 minutes after eating. Blood sugar stays stable. You feel relaxed. Sleep improves.
Do LISS daily if possible. This is not hard training that needs recovery. This is gentle activity that enhances recovery. On rest days from strength training do longer LISS sessions 60 to 90 minutes.
💡 LISS Rule: Low intensity cardio at 60 to 70 percent max heart rate burns almost pure fat. On keto you become incredibly efficient at this making LISS your secret weapon for fat loss.
3. HIIT Carefully: High Intensity After Adaptation
High intensity interval training or HIIT can work on keto but only after full fat adaptation. First 4 to 6 weeks avoid HIIT completely. Let your body adapt to burning fat. Once adapted you can add HIIT strategically for extra benefits.
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Monitor heart rate at 60 to 70 percent max during LISS for optimal fat burning |
Why HIIT is Harder on Keto
HIIT requires explosive power. Sprint all out for 30 seconds. Rest. Sprint again. This burns through muscle glycogen rapidly. On high carb diet glycogen refills from your meals. On keto glycogen stays very low.
Without glycogen HIIT feels terrible. You cannot push as hard. You gas out faster. Performance drops. This frustrates people. They think keto killed their fitness. Actually they just did wrong exercise type for their fuel state.
After 4 to 6 weeks fat adapted your body gets better at high intensity on fat. Not as good as on carbs but workable. Your muscles learn to burn fat faster. Your anaerobic threshold improves. HIIT becomes possible again.
How to Add HIIT on Keto
Wait until week 5 or 6 of keto before trying HIIT. Start with just one HIIT session per week. Keep it short 15 to 20 minutes total. Use work to rest ratio of 1 to 3. Sprint 20 seconds rest 60 seconds. Repeat 8 to 10 times.
Good HIIT exercises on keto include sprint intervals on bike assault bike or rowing machine. Burpees. Jump rope. Battle ropes. Kettlebell swings. These allow high intensity without requiring hour-long glycogen stores.
Never do HIIT more than 2 to 3 times weekly on keto. Your recovery ability is different. Too much HIIT combined with low carbs creates excessive stress. Cortisol rises. Fat loss stalls. You feel exhausted.
Targeted Ketogenic Diet for HIIT
Some people use targeted keto or TKD for HIIT performance. Eat 15 to 25 grams fast-acting carbs 30 minutes before HIIT session. White rice. Banana. Honey. These provide quick glucose for high intensity work.
After workout you burn through those carbs and return to ketosis within 2 hours. This allows better HIIT performance while staying mostly ketogenic. Only use TKD if you are serious athlete needing high intensity performance.
For most people focusing on strength training and LISS produces better results than adding HIIT. HIIT is optional enhancement not requirement for great keto fitness results.
💡 HIIT Truth: High intensity works on keto after adaptation but is not necessary for fat loss or muscle building. Prioritize strength and LISS first add HIIT optionally if you enjoy it.
4. Timing Nutrition and Recovery for Maximum Results
When you eat matters as much as what you eat for keto exercise results. Protein timing. Workout timing. Electrolytes. Sleep. All these factors determine whether you build muscle and burn fat or just feel exhausted.
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Eat 30 to 40 grams protein within 2 hours after strength training for muscle recovery |
Protein Timing for Muscle Growth
Eat protein within 2 hours after strength training. Your muscles need amino acids to repair and grow. Have 30 to 40 grams protein post-workout. Eggs. Steak. Chicken. Fish. Protein shake if convenient.
Spread remaining protein throughout day. Eat protein with every meal. Minimum 0.8 grams per pound bodyweight daily. If you weigh 150 pounds eat 120 grams protein daily. This ensures constant supply of amino acids for muscle repair.
Some people do better eating more protein on training days and slightly less on rest days. Experiment and see what works for your recovery and muscle growth.
Fasted Training Benefits
Training fasted amplifies fat burning. Wake up. Drink water with salt. Work out. Your body has no food to burn so it burns stored fat immediately. This accelerates fat loss significantly especially combined with LISS cardio.
Fasted strength training works fine once fat adapted. Your muscles have enough stored fat to fuel workout. Fasted HIIT is harder because it needs quick energy. Save HIIT for fed state.
After fasted training eat protein and fat meal within 2 hours. Break fast with quality nutrition. This supports muscle recovery while extending fat burning window from overnight through workout.
Electrolytes During Workouts
Keto causes electrolyte loss through urine. During workouts you lose more through sweat. Without adequate sodium potassium and magnesium you cramp. You feel weak. Performance suffers.
Before workout drink 16 ounces water with half teaspoon salt. During longer workouts over 60 minutes sip water with salt and potassium. After workout replenish with magnesium 300 to 400mg.
Many keto exercisers use electrolyte powder mixes. Look for zero sugar versions with adequate sodium 1000mg potassium 200mg and magnesium 100mg per serving. Mix in water bottle during training.
Sleep and Recovery
Muscle growth happens during sleep not during workouts. Sleep 7 to 9 hours nightly. Deep sleep releases growth hormone that repairs and builds muscle tissue. Poor sleep kills gains even with perfect training and nutrition.
On keto sleep often improves after adaptation. GABA increases creating calm restful sleep. But first weeks sleep might be disrupted. Stick with it. By week 3 to 4 most people sleep deeper and wake more refreshed.
Take rest days seriously. Minimum one full rest day weekly. Two rest days is even better especially if doing intense strength training. Rest days do LISS only or complete rest. Your muscles need time to recover stronger.
💡 Timing Truth: Post-workout protein within 2 hours plus adequate electrolytes and 8 hours sleep determine whether you build muscle. Training is stimulus recovery is when growth happens.
5. Adaptation Timeline: What to Expect Each Week
Understanding adaptation timeline prevents quitting too early. Keto exercise feels different each week as your body adapts. Most people quit during hardest weeks 2 to 3 right before adaptation completes. Do not make this mistake.
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Track your adaptation over 8 weeks as energy and strength progressively improve |
Week 1: The Honeymoon
First few days feel okay. You might even feel energized from ketone production starting. Workouts feel normal. You think this is easy. Do not be fooled. The hard part comes next.
Reduce workout intensity by 20 to 30 percent this week. Do lighter weights. Shorter sessions. More rest. You are transitioning fuels. Give your body time.
Week 2 to 3: The Struggle
This is hardest period. Energy crashes during workouts. Weights feel heavier than before. You cannot run as far or fast. You feel weak. This is normal. Your body is between fuel sources. Not efficient at either yet.
Many people quit here thinking keto ruined their fitness. Do not quit. This phase passes. Keep protein high. Keep electrolytes up. Keep training but reduce volume and intensity. Just maintain. Do not push hard.
Week 4 to 5: The Turn
Suddenly workouts feel better. Energy returns. You can lift weights similar to before. Cardio feels easier. This is fat adaptation beginning. Your mitochondria multiplied. Fat burning enzymes increased. You are becoming efficient.
Start increasing intensity gradually. Add 5 to 10 pounds to lifts. Go slightly faster or longer on cardio. Your body is ready for progressive overload again.
Week 6 to 8: Full Adaptation
By 6 to 8 weeks you are fully fat adapted for exercise. Strength equals or exceeds pre-keto levels. Endurance improves beyond pre-keto. Recovery is faster. Muscle definition is dramatically better despite similar weight.
Now you can train hard again. Progressive overload on strength. Add HIIT if desired. Push your limits. Your body efficiently uses fat for fuel supporting intense training.
Month 2 to 3: Peak Performance
After 8 to 12 weeks many people report best fitness of their life. Leaner. Stronger. More endurance. Less inflammation. Faster recovery. This is keto exercise performing at optimal level.
Body recomposition continues. Losing fat. Building muscle. Looking more defined each week. Performance in gym keeps improving. You wonder why everyone does not train this way.
💡 Adaptation Timeline: Weeks 2 to 3 feel terrible. Weeks 4 to 5 turn around. Weeks 6 to 8 feel amazing. Give it full 8 weeks before judging keto exercise results.
Quick Keto Exercise Tips
Here are 10 simple ways to maximize keto exercise results starting today:
- Eat 0.8 to 1 gram protein per pound bodyweight daily split across 3 to 4 meals to provide constant amino acid supply for muscle repair and growth.
- Drink 16 ounces salted water 30 minutes before every workout to hydrate and prevent cramping from electrolyte loss during exercise.
- Do strength training 3 to 4 days weekly focusing on compound movements like squats deadlifts bench press and rows for maximum muscle building.
- Walk 30 to 60 minutes daily preferably fasted in morning to burn maximum fat while feeling energized not exhausted.
- Sleep 7 to 9 hours nightly because muscle growth happens during deep sleep when growth hormone releases to repair trained muscles.
- Take 300 to 400mg magnesium glycinate before bed to support muscle recovery prevent cramps and improve deep sleep quality.
- Reduce training volume by 30 percent during first 3 weeks of keto adaptation allowing your body to adjust to new fuel source.
- Eat post-workout meal with 30 to 40 grams protein within 2 hours of finishing strength training to maximize muscle protein synthesis.
- Avoid HIIT completely for first 4 to 6 weeks focusing instead on strength and LISS until fully fat adapted for high intensity.
- Track your workouts in notebook or app recording weights reps and how you feel to monitor progress through adaptation period.
Internal Link to Previous Guide
Exercise works better when inflammation is low. Keto's anti-inflammatory effects improve recovery speed and reduce soreness allowing you to train harder and more frequently.
👉 9 Amino Acids That Burn Fat and Build Muscle Fast on Keto
Combining keto exercise with inflammation reduction creates optimal training environment for muscle growth and fat loss.
Key Takeaways
- Keto exercise burns 200 to 300 percent more fat during workouts because body uses stored fat for fuel instead of recently eaten carbs.
- Strength training 3 to 4 days weekly builds muscle just as effectively on keto as on carbs when protein intake is adequate at 0.8 to 1 gram per pound.
- Low intensity cardio LISS at 60 to 70 percent max heart rate is perfect for keto burning almost pure fat for hours without fatigue.
- Adaptation takes 4 to 6 weeks with weeks 2 to 3 being hardest when energy feels low before fat burning efficiency improves dramatically.
- HIIT works on keto after full adaptation but is optional not required most people get better results from strength plus LISS combination.
- Timing matters eat 30 to 40 grams protein within 2 hours post-workout drink salted water before training and sleep 8 hours for recovery.
- Body recomposition happens losing fat and building muscle simultaneously creating leaner more defined physique at same or higher body weight.
Final Thoughts
You worried keto would kill your fitness. Everyone told you that you need carbs to build muscle. That you need carbs for energy. That low carb means low performance. All wrong. All outdated thinking.
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Real body recomposition happens in 8 to 12 weeks with proper keto exercise |
Keto exercise is different not worse. First few weeks are challenging. Your body transitions from sugar burner to fat burner. During transition performance dips. Weights feel heavier. Cardio feels harder. This is temporary adaptation phase not permanent damage.
Most people quit during weeks 2 to 3. Right before breakthrough. They think keto ruined them. They go back to carbs. They never experience the incredible benefits on the other side of adaptation.
You must commit to 8 full weeks. First 3 weeks reduce intensity. Just maintain. Do not push hard. Let your body adapt. Weeks 4 to 5 you turn the corner. Energy returns. Workouts feel better.
By week 6 to 8 you are different athlete. Fat adapted. Fat burning machine. You can train fasted and feel great. You can do 60 minute workouts on nothing but stored body fat. Your endurance improves beyond anything you experienced on carbs.
Your body composition transforms. Losing fat rapidly especially stubborn belly fat. Building or maintaining muscle easily. Getting more defined each week. Abs appearing. Muscles showing through. Clothes fitting better despite scale barely moving.
This is body recomposition. Losing fat. Gaining muscle. Same weight but completely different appearance. Leaner. More muscular. More athletic. This happens naturally on keto exercise without counting calories or suffering hunger.
The science is clear. Your body burns more fat during and after keto workouts. Recovery improves because inflammation drops. Sleep quality increases releasing more growth hormone. All of these factors accelerate results compared to carb-based training.
You must match training to fuel source. Stop doing explosive high intensity work first 6 weeks. Focus on strength training with adequate rest. Add lots of easy LISS cardio. Walk daily. These activities match perfectly with fat burning metabolism.
Nutrition timing matters. Protein after workouts. Electrolytes before and during. Sleep 8 hours nightly. These recovery factors determine whether training builds muscle or just breaks you down.
Many people report best fitness results of their life on keto exercise. Not despite low carbs. Because of fat adaptation. Their body becomes incredibly efficient at burning fat. They have unlimited energy. They never bonk or crash. They just go and go and go.
Strength maintains or increases once adapted. You do not need carbs for progressive overload. You need protein resistance and consistency. All work perfectly on keto. Some bodybuilders now compete on full keto building incredible physiques.
Your genetics did not change. Your potential did not decrease. You just need different approach. Stop following carb-based training advice. Start following fat-adapted training protocols. Match your workouts to your metabolism.
Week 1 starts today. Reduce intensity. Focus on form. Walk lots. Sleep well. Week 2 and 3 trust the process even when hard. Week 4 and 5 feel the shift. Week 6 to 8 experience the transformation.
After 8 weeks you will not want to go back to carbs. Your energy will be stable all day. Your body will burn fat effortlessly. Your muscles will look defined. Your performance will match or exceed pre-keto levels.
This is not theory. This is proven by thousands of keto athletes. Bodybuilders. Runners. Cyclists. Cross Fitters. All thriving on ketogenic diet with proper exercise approach. You can join them. Just give it 8 full weeks.
Stop fighting your new metabolism. Work with it. Train smart for fat burning. Watch your body transform faster than ever before.
Train Smart Build Muscle Burn Fat
Your body is ready to transform. Give it proper keto-adapted exercise and watch it thrive.
Frequently Asked Questions (FAQ)
Q1: Can I build muscle on keto without carbs?
Yes you build muscle from protein and progressive resistance training not carbs. Eat 0.8 to 1 gram protein per pound bodyweight daily. Lift weights 3 to 4 times weekly increasing weight gradually. Studies show keto builds equal muscle to high carb diets when protein is adequate. Carbs help with explosive power but muscle growth requires protein amino acids and mechanical tension from lifting which work perfectly on keto.
Q2: Why do I feel weak during workouts on keto?
First 3 to 4 weeks your body transitions from burning glucose to burning fat. During this adaptation performance temporarily decreases. Energy feels low. Weights feel heavy. This is normal and temporary. By week 5 to 6 fat adaptation completes and energy returns often better than before. Reduce training intensity 30 percent first month. Keep electrolytes high especially sodium. Give your body time to adapt.
Q3: Should I eat carbs before workouts on keto?
Not necessary for most people. Once fat adapted your body efficiently burns fat during workouts. Some athletes use targeted keto eating 15 to 25 grams fast carbs 30 minutes before high intensity sessions then returning to ketosis after. But for strength training and cardio fasted workouts burn more fat and feel great once adapted. Experiment after 6 weeks adaptation to find what works best.
Q4: How much protein do I need for muscle on keto?
Aim for 0.8 to 1 gram protein per pound bodyweight daily. If you weigh 150 pounds eat 120 to 150 grams protein. Spread across 3 to 4 meals. Prioritize whole food sources like eggs beef chicken fish. Post-workout have 30 to 40 grams protein within 2 hours. This provides amino acids for muscle repair and growth. Too little protein risks muscle loss. Adequate protein builds muscle effectively on keto.
Q5: What exercises work best on keto diet?
Strength training with compound movements works best. Squats deadlifts bench press rows pull-ups overhead press. These build maximum muscle with limited energy expenditure. Low intensity steady cardio like walking cycling swimming for 30 to 90 minutes burns pure fat. Avoid high intensity interval training first 6 weeks until fat adapted. Focus on progressive overload in strength training and daily LISS cardio.
Q6: When is best time to exercise on keto?
Morning fasted training burns maximum fat. Wake up drink salted water exercise for 30 to 90 minutes then eat first meal. Your body uses stored fat entire workout. Evening training after eating also works fine. Avoid training immediately after large meal. Wait 2 to 3 hours. Most important is consistency training same time daily regardless of when you choose.
Q7: Do I need electrolyte supplements for keto workouts?
Yes electrolytes are crucial. Keto causes sodium potassium and magnesium loss through urine. Exercise increases loss through sweat. Without adequate electrolytes you cramp feel weak and perform poorly. Drink 16 ounces water with half teaspoon salt before workouts. Take 300 to 400mg magnesium glycinate daily. Eat potassium-rich foods like avocado spinach salmon. Consider electrolyte powder for longer workouts over 60 minutes.
Q8: How long until I see results from keto exercise?
Fat loss shows within first 2 weeks from water weight and initial fat burning. Muscle definition improves dramatically weeks 3 to 4 as subcutaneous fat decreases. Strength returns to normal by week 5 to 6 after adaptation. Peak body recomposition happens weeks 8 to 12 losing fat building muscle simultaneously. Take progress photos weekly scale weight matters less than visual changes and how clothes fit.
✍️ Author Bio
Khurram Ali is a Health Researcher who knows that keto exercise works differently than carb-based training. Through proper workout selection timing and adaptation people build more muscle and burn more fat on keto than ever before. Real transformation happens when you match training to metabolism not fight against it.
📌 Disclaimer
This content is for education only and does not replace medical advice. Exercise and dietary changes can affect health conditions. Always consult your healthcare provider before starting new exercise program especially if you have heart disease diabetes joint problems or take medications. Individual results vary. This post contains affiliate links which support our work at no cost to you.
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