Articles
Reporting & explainers
Original articles on GLP-1 medications and intermittent fasting — written in plain language, sourced to high-level evidence.
- Nutrition
GLP-1 Protein Intake: What You Need to Know
GLP-1 protein intake matters more than most people realize. Learn what research says about eating enough protein on GLP-1 therapy to protect muscle and health.
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Fasting Side Effects: What Research Shows
Learn what peer-reviewed studies say about fasting side effects on iron levels, immune cells, testosterone, and more. Not medical advice—talk to your doctor.
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GLP-1 Hypertension: What the Research Shows
New research compares GLP-1 hypertension treatment to other drug classes. Here's what the evidence shows and what to ask your doctor.
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GLP-1 Older Adults: Exercise & Muscle Guide
GLP-1 older adults face unique muscle and bone risks during weight loss. Learn what research says about exercise, protein, and safe activity levels.
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Orforglipron Maintains Weight Loss After Injectables
ATTAIN‑MAINTAIN shows patients switching to the oral GLP‑1 orforglipron preserve about 75–79% of prior injectable weight loss over 52 weeks.
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Foundayo Delivers up to 13% Weight Loss in Older Adults
New ATTAIN‑1/2 analysis shows oral GLP‑1 pill Foundayo helps adults 65+ lose up to 13% body weight at 72 weeks. Medicare covers Foundayo starting July 1 with $50 copay.
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GLP-1 Calorie Intake: What the Research Shows
How much does GLP-1 calorie intake actually drop on medication—and does eating less mean eating better? Here's what peer-reviewed studies say.
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CGM shows semaglutide stabilizes glucose in Ramadan fasting
CGM study finds adding semaglutide to insulin therapy during Ramadan fasting improves time‑in‑range and reduces post‑iftar hyperglycemia in insulin‑treated diabetes.
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Fasting & Men's Health: What Research Shows
Fasting and men's health intersect in surprising ways. Learn what recent studies say about testosterone, sperm, iron, and immune risk before you start fasting.
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GLP-1 Weight Regain: What Happens After You Stop?
GLP-1 weight regain is common after stopping semaglutide or tirzepatide. Learn what the research shows and what to ask your doctor before quitting.
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GLP-1 Appetite Changes: What to Expect
GLP-1 appetite changes can cut calories fast—but less food means real nutrition risks. Learn what research says and when to see a dietitian.
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Medicare GLP‑1 Bridge confirms coverage of Foundayo, Wegovy, Zepbound KwikPen
New July 1, 2026 Medicare guidance confirms Medicare GLP‑1 Bridge covers Foundayo, all Wegovy options, and only Zepbound KwikPen for weight‑loss under $50/month.
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GLP‑1/GIP add‑on therapy stabilizes Ramadan dysglycaemia
New CGM data show GLP‑1 receptor agonist (semaglutide) or GLP‑1/GIP agonist (tirzepatide) add‑on therapy stabilizes Ramadan dysglycaemia in insulin‑treated patients.
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GLP-1 Meal Planning: A Practical Guide
GLP-1 meal planning can be tricky when appetite drops sharply. Learn what research says about protein, nutrients, and diet quality on GLP-1 therapy.
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GLP-1 Sleep Benefits: What Research Shows
GLP-1 sleep benefits are backed by growing research. Learn what studies say about incretin therapy and obstructive sleep apnea before talking to your doctor.
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GLP-1 Exercise: What Age Changes
GLP-1 exercise responses shift with age. Learn what research says about cardio capacity, muscle strength, and bone health across life stages on GLP-1 therapy.
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GLP-1 Kidney Health: What the Research Shows
GLP-1 kidney health research reveals real nutrition risks. Learn what current studies say about protecting your kidneys during GLP-1 therapy.
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Fasting & Skin Health: What the Research Shows
Can fasting improve skin health? Here's what current research on psoriasis, diet, and caloric restriction says—plus who should talk to a doctor first.
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GLP-1 Sleep Apnea: What the Research Shows
GLP-1 sleep apnea research is growing. Learn what studies say about incretin therapy, weight loss, and breathing during sleep.
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GLP-1 Health Benefits Beyond the Scale
GLP-1 health benefits extend far beyond weight loss. Learn what recent research says about heart, brain, sleep, joint, and kidney effects of incretin therapy.
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GLP-1 Aging: Protecting Muscle & Bone
GLP-1 aging research shows older adults face unique muscle and bone risks. Learn what the evidence says and what to ask your doctor.
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Fasting & Hormones: What the Research Shows
Curious how fasting affects hormones? This guide covers fasting and hormones research on testosterone, insulin, and metabolic markers. Not medical advice.
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GLP-1 Brain Health: What the Research Shows
New studies link GLP-1 brain health benefits to lower Alzheimer's risk and better sleep. Here's what the evidence says and what to ask your doctor.
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GLP-1 Diet Quality: Are You Eating Well?
GLP-1 diet quality matters more than ever on appetite-suppressing meds. Learn what the research says about nutrients, food choices, and long-term health.
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Fasting & Chronic Conditions: What to Know
Fasting and chronic conditions like diabetes, psoriasis, and obesity: what the latest research says and when to talk to your doctor first.
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GLP-1 Medications: Beyond Weight Loss
GLP-1 medications do more than shrink waistlines. Learn how these drugs may affect your heart, joints, kidneys, and more. Not medical advice.
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GLP-1 Fitness: Cardio & Strength Together
Combining cardio and strength training on GLP-1 therapy helps protect muscle and heart health. Learn what the research says. Not medical advice.
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GLP-1 Diet Quality: Are You Eating Well?
GLP-1 diet quality matters more than ever on smaller portions. Learn what the research says about nutrients, cravings, and food choices on GLP-1 therapy.
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Fasting & Chronic Conditions: What to Know
Fasting and chronic conditions like diabetes, psoriasis, and depression—learn what research says and when to ask your doctor first.
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GLP-1 Medications: Joint & Heart Benefits
GLP-1 medications may help more than weight loss. Learn how they affect joint pain, heart health, kidneys, and sleep apnea. Not medical advice.
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GLP-1 Micronutrients: Are You Getting Enough?
GLP-1 medications reduce appetite, but are you getting enough micronutrients? Learn which nutrients to watch and how to eat smarter on less food.
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Fasting & Cancer Survivors: What to Know
Fasting for cancer survivors explained: safety, muscle loss risks, and what research says. Not medical advice—always consult your care team first.
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GLP-1 Medications: After You Stop
What happens to your weight after stopping GLP-1 medications? Learn what the research says and how to talk to your doctor about next steps.
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GLP-1 Fitness: Build Cardio Capacity
On GLP-1 medications, learn how aerobic exercise can protect heart health and boost cardio fitness. General info only—consult your healthcare provider.
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GLP-1 Micronutrients: Are You Getting Enough?
GLP-1 micronutrients matter more than ever on a smaller appetite. Learn which nutrients are at risk and how to protect your health.
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Intermittent Fasting: Is It Safe for You?
Intermittent fasting may aid weight loss, but is it safe for everyone? Learn what research says about risks, benefits, and who should use caution.
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GLP-1 Nutrition: Eating on a Smaller Appetite
GLP-1 nutrition tips to stay nourished when appetite shrinks. Learn what the research says about protein, muscle, and diet quality. Not medical advice.
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Intermittent Fasting: Age & Body Composition
Intermittent fasting affects body composition differently by age. Learn what the research says and how to protect muscle while losing weight.
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GLP-1 Medications: Who Responds Best?
Curious about GLP-1 medications and why results vary? Learn what research says about response, safety, and personalization. Not medical advice.
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GLP-1 Fitness: Protect Your Strength
On GLP-1 medications? Learn how resistance training and smart nutrition protect muscle strength and metabolic health during weight loss.
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GLP-1 Nutrition: Eating Well on Less
GLP-1 nutrition tips to protect muscle, bone, and metabolic health while eating less. Learn what the research says—and when to see a dietitian.
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4:3 Fasting: A Consumer Guide
Curious about 4:3 fasting? This consumer guide covers how it works, weight loss research, muscle concerns, and who should talk to a doctor first.
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GLP-1 Medications: Who Responds Best?
Curious about GLP-1 medications? Learn who responds best, what to expect, and key safety findings. Not medical advice — always consult your doctor.
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GLP-1 Nutrition: What Should You Eat?
Learn GLP-1 nutrition strategies to protect muscle, manage side effects, and support long-term weight health. Not medical advice—consult your care team.
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Intermittent Fasting: What You Need to Know
Learn how intermittent fasting works, who it may help, and what the latest research says. Not medical advice—always consult your doctor.
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GLP-1 Medications: What You Need to Know
Curious about GLP-1 medications? This consumer guide covers how they work, who they help, risks, and what the latest research says.
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GLP-1 Nutrition: What Should You Eat?
Discover GLP-1 nutrition strategies to preserve muscle, manage side effects, and support long-term weight health. Not medical advice—consult your provider.
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16:8 Intermittent Fasting on Tirzepatide (Mounjaro or Zepbound): How to Start
A gentle, step-by-step way to build up to a 16:8 eating window on tirzepatide — and the safety check that comes before any of it.
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Can You Fast While Taking Ozempic? What to Know First
Intermittent fasting is compatible with semaglutide for many people — but one medication combination changes the safety math. Here's how to tell if it applies to you.
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GLP-1s and Low Blood Sugar While Fasting: Who's Actually at Risk
GLP-1 medications rarely cause hypoglycemia on their own. Combined with insulin or a sulfonylurea — and a fasting window — the risk becomes real. Here's how to tell if it applies to you.
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Intermittent Fasting: What You Need to Know
Discover how intermittent fasting works, who it may help, and what research says about safety and results. Not medical advice—consult your doctor first.
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Protecting Muscle on a GLP-1: Protein, Strength, and Smart Fasting
Rapid weight loss on a GLP-1 takes some muscle along with the fat. Here's what the research shows and the two habits that protect lean mass.
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Semaglutide vs. Tirzepatide: How They Compare
A side-by-side look at the two most-prescribed incretin medications — drug class, brand names, approved uses, average weight loss, and how they're dosed.
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Welcome to GLP Fasting
Why we started this site, what we cover, and how we think about evidence in a space full of noise.
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