Chapter 9 · Is This Even Safe?

The phone rang at 7:43 AM on a Saturday. Mark knew who it was before he looked. Karen Chen did not call before nine on weekends unless she'd been researching, and research, in his mother's hands, was a contact sport.

He was still in bed. Priya had her head on his chest and Biscuit was sprawled across his feet like a beagle-shaped paperweight. The morning was gray through the curtains — Austin in late spring, the air already thick with humidity even before the sun committed to the day.

"Honey," his mother said, skipping the greeting entirely, "I've been reading about this fasting thing you're doing."

Mark closed his eyes. He'd told her about the fasting in a text — not even a call, just a text, which in retrospect had been a tactical error. Texting his mother that he was skipping meals to heal his liver was like leaving a loaded research prompt on the desk of a retired librarian. She'd spent thirty-two years finding information for people. She wasn't going to stop because she'd retired.

"It says online that you can damage your metabolism," she continued. "It says your body goes into starvation mode and actually holds onto fat instead of burning it. It says you're going to lose muscle mass. And then I read that fasting can damage your liver, which seems —" she paused for emphasis — "counterproductive."

"Mom —"

"And," she continued, having apparently been building this list for days, "Priya is worried. I can tell. She gave me a look when I asked her about it at dinner last week. That he'd better have research to back this up look."

Mark glanced at Priya. She was pretending to be asleep, but the corner of her mouth was twitching.

"Priya's not worried," Mark said.

"She is," his mother said, in the tone that meant the matter was settled. "So you need to tell me the actual facts. Not the internet nonsense. The real medical facts. Because if you're damaging your liver by not eating, I'm going to have words with you."

Mark sat up slowly, careful not to disturb the carefully balanced comfort arrangement of wife and dog. He reached for his laptop on the nightstand and opened the document he'd titled "What's Happening in My Body" — five weeks of research, organized and annotated, the kind of document his mother would have appreciated if she'd known it existed.

"Okay," he said. "First: starvation mode isn't a real metabolic state. The idea that your body holds onto fat if you stop eating is biochemically backwards. Your body needs energy. If you're not eating, it mobilizes fat to get it. That's not theory — that's how metabolism works. The liver breaks down triglycerides into ketones. We covered this."

"But the internet —"

"The internet says a lot of things. Some of it is accurate. Some of it is people selling expensive supplements who need you to believe fasting is dangerous so you'll buy their alternative." He pulled up a tab on his laptop. "Let me give you the actual hepatology data."

He walked her through it. Forty minutes. The TREATY-FLD trial. The 2023 systematic reviews. The consensus from the American Association for the Study of Liver Diseases. The distinction between what he was doing — time-restricted eating with adequate nutrition during the eating window — and actual starvation, which was something else entirely.

He explained the contraindications: the specific conditions where fasting was genuinely dangerous. Decompensated cirrhosis — a liver so scarred it couldn't perform its basic functions. Type 1 diabetes, where insulin dosing during fasting became a medical tightrope. Active eating disorders, where fasting structures could reinforce harmful patterns. Pregnancy, where caloric needs were elevated and non-negotiable.

"I'm not in any of those categories, Mom. I have early-stage MASLD. No cirrhosis. No fibrosis. My FIB-4 is 0.68. I'm eating normally during my eating window — 2,000 calories, nutrient-dense food, no restriction. I'm doing a gradual protocol, not some crash fast. And my hepatologist knows."

"Your hepatologist knows?"

"I texted her last week. She said it was the right approach."

The silence on the line had a different quality now. Not panic. Recalibration.

"So when do you see her again?"

"Two weeks. Follow-up labs."

"And you'll tell her everything?"

"Obviously."

His mother was quiet for a long moment. Then: "Okay. But Mark — if anything feels wrong —"

"I'll stop. Immediately. I have a list of red flags. Severe hypoglycemia, jaundice, rapid weight loss, cognitive changes, abdominal pain. If any of those show up, I stop and call Dr. Nguyen."

"You have a list," his mother repeated, and he could hear the shift — the librarian in her approving of a well-organized system.

"I have a list."

"Okay." Another pause. "I'm sorry for panicking."

"Don't be. You panicked because you care, and the internet gave you bad information. That's not your fault. It's the internet's fault."

After he hung up, Priya rolled over and opened her eyes — no longer pretending.

"You handled that well," she said.

"Five weeks of research helps."

"No," she said, studying him. "You actually knew the answer. You weren't defensive. You weren't scared. You knew the science well enough to explain it calmly, to someone who was afraid, without panicking yourself."

Mark set the laptop on the nightstand and lay back. She was right. A month ago, his mother's call would have unravelled him. The fear in her voice would have become his fear. He'd have spent the rest of the day spiralling through Reddit threads about liver damage and starvation mode, building worst-case scenarios like he'd done with the forum posts at 2 AM all those weeks ago.

But something had shifted. Not just in his metabolism. In his relationship to the diagnosis. He'd gone from being a patient who was afraid to a patient who was informed, and the distance between those two states was measured in papers read, protocols followed, and conversations with his doctor.

Knowledge hadn't eliminated the risk. It had clarified it. He knew exactly what was safe and what wasn't. He knew the line between therapeutic fasting and dangerous restriction. He knew his own red flags. And he knew that what he was doing fell squarely in the category that hepatologists recommended for patients with his exact condition.

---

That afternoon, while Priya was at yoga, Mark sat at the kitchen table and did something he'd been meaning to do for weeks. He opened a fresh document and titled it "Safety Framework."

Not for his mother. For himself.

He'd been carrying the safety argument in his head — the contraindications, the red flags, the clinical evidence — but he hadn't written it down. Writing it down was different. Writing it down meant committing to the system, not just the idea.

He started with two columns.

Safe for me: Early-stage MASLD. No cirrhosis, no fibrosis, no decompensation. Not diabetic — insulin-resistant but managing with fasting. Adequate calorie and nutrient intake during eating window. Gradual progression (12:12 to 14:10 to 16:8). Medical oversight secured. Forty-six consecutive days of adherence with no adverse events.

Would make fasting unsafe: Cirrhosis with decompensation (Child-Pugh B or C). Active hepatic encephalopathy. Portal hypertension with varices. Type 1 diabetes without adjusted insulin protocol. Active eating disorder. Pregnancy or breastfeeding. Severe malnutrition or caloric intake below 1,200 during eating window.

He wasn't in the second column. He was firmly, documentably in the first.

Then he wrote the red flags — the symptoms that would make him stop immediately and call Dr. Nguyen:

Severe hypoglycemia: blood glucose below 54 mg/dL, shakiness, confusion, sweating, palpitations. Jaundice: yellowing of skin or eyes — bilirubin clearance failing. Rapid weight loss: more than 2 lbs per week consistently — muscle catabolism, not fat loss. Cognitive changes: confusion or disorientation, distinct from the clarity he'd been experiencing. Severe abdominal pain: could indicate pancreatitis, gallbladder issues, or other complications. Urine changes: dark or tea-coloured — dehydration or liver dysfunction.

He saved the document. Then he shared it with Dave.

Dave's response came back an hour later: "This is legit. You've basically summarized the clinical guidance. You're in the safe zone. Keep your doc in the loop and you're golden."

That evening, Mark showed Priya the Safety Framework. She read it on his laptop, scrolling slowly, the way she read things that mattered — not skimming, but absorbing.

"You're taking this seriously," she said when she finished.

"I'm not going to wreck my liver trying to heal it. That would be bad strategy."

She smiled — not the cautious smile she'd had when he first mentioned fasting, but a real one. Relief and pride, mixed.

That night, Mark opened his fasting app. Forty-six consecutive days. His next lab appointment was in two weeks. He wanted to see his ALT drop. He wanted numbers — data that he could show his mother, his doctor, and himself. Proof that this wasn't reckless intuition but calculated intervention.

He pulled up his text thread with Dr. Nguyen and re-read her last message: "That's the right approach. See you soon."

He closed the phone and lay in the dark, listening to Priya's breathing settle into sleep and Biscuit's quiet snoring from the foot of the bed.

Fear without knowledge was panic. Fear with knowledge was caution. And caution, applied consistently, was how you healed a liver without breaking it.