TRT journey content: what week 103 probably gets right and wrong
Quick answer
This creator is 103 weeks into TRT and introduced a carnivore diet protocol during this logged week, experiencing classic early keto-adaptation symptoms including fatigue and acute strength reduction at familiar training loads. He lost approximately 3.8 lbs in one week, consistent with glycogen and water depletion rather than fat loss. No blood work, SHBG levels, or TRT dosing information is mentioned, making it impossible to assess how the dietary shift may be interacting with his hormone therapy.
Our take · Written by FormBlends editorial team · Reviewed by FormBlends Medical Team· This is not a transcript. It is our independent review of the video above.
What did @bigpuncustoms actually say?
He's 103 weeks into TRT and decided to try a carnivore diet mid-journey, using ChatGPT to build his meal plan. He started at 275 lbs and dropped to 271.2 by Sunday. The honest part of his story: "the first 3, 4 days, like, oh my God, I was so depleted and so exhausted." He found 225 lbs on bench felt like "no gas in the tank" and ultimately quit carnivore because it didn't fit his lifestyle, especially on filming days when food options were processed and sugar-heavy. No bold health claims here. Just a guy logging his week, which is refreshingly low-key for TRT content.
He doesn't cite protocols, doses, or blood labs. This is a diary entry, not medical advice. That context matters when fact-checking it.
Does the science back this up?
Yes, actually. The fatigue and strength drop he described in the first few days of carnivore are well-documented and have a name: the keto adaptation period. This is not bro-science. It's physiology.
When you eliminate carbohydrates, muscle glycogen stores deplete within 24 to 48 hours. Glycogen is the primary fuel source for high-intensity resistance training. Volek et al. (2015, Nutrition & Metabolism) documented that athletes transitioning to low-carbohydrate diets experience significant short-term performance decrements before fat oxidation pathways upregulate. Burke et al. (2017, Journal of Physiology) found that elite race walkers on ketogenic diets showed impaired high-intensity performance even after three weeks of adaptation, suggesting the transition window can extend beyond a few days for some people.
His four-pound drop in one week is also plausible. Glycogen holds roughly 3 to 4 grams of water per gram. Deplete it, and you lose water weight fast. That's not fat loss. It's fluid.
What did they get wrong (or right)?
He got the physiology right without knowing he was describing it. Credit where it's due. The fatigue, the strength drop, the short-term weight loss, all consistent with what the literature says happens during early carbohydrate restriction.
What's worth questioning is the ChatGPT diet plan. Large language models are not registered dietitians. They can produce plausible-sounding macronutrient ratios, but they cannot account for his TRT protocol, his training volume, his cardiovascular output (he logged nearly 28 miles of bike cardio that week), or his individual metabolic rate. Using an AI chatbot to design a diet while on hormone therapy, with that training load, is a meaningful gap. It's not dangerous in the way taking an unverified supplement stack would be, but it's not the same as working with someone who can read labs.
He also doesn't mention whether his TRT provider knows he shifted his diet this dramatically. Testosterone metabolism and SHBG levels can be influenced by dietary fat intake, which matters when you're on exogenous testosterone.
What should you actually know?
If you're on TRT and considering a carnivore or ketogenic diet, the interaction between dietary fat, cholesterol metabolism, and testosterone bioavailability is real and worth discussing with the clinician managing your protocol. Hamalainen et al. (1984, Hormone and Metabolic Research) found that low-fat diets reduced total and free testosterone in men, suggesting dietary fat plays a role in androgen availability. That cuts both ways: very high saturated fat intake has its own cardiovascular considerations, especially for men already on exogenous testosterone.
The four-pound week-one weight drop he described is almost entirely water and glycogen, not body fat. Expecting that rate to continue is how people set themselves up for disappointment and then abandonment, which is exactly what happened here. He tried it, got off, got back on, then quit. That cycle is common and predictable when the adaptation window isn't properly managed.
Anyone combining TRT with significant dietary changes should be getting bloodwork that includes lipid panels, hematocrit, and free testosterone, not just relying on scale weight and gym performance as feedback signals.
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For TRT journey content: what week 103 probably gets right and wrong, FormBlends checks the page topic against primary trials, systematic reviews, guidelines, and current PubMed-indexed literature where available. These citations are context, not medical advice, proof of eligibility, or a claim that every study applies to every patient.
Cardiovascular Safety of Testosterone-Replacement Therapy
TRAVERSE trial anchor for cardiovascular-safety discussions in appropriately diagnosed men.
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Testosterone therapy in men with androgen deficiency syndromes: an Endocrine Society clinical practice guideline
Guideline anchor for diagnosis, monitoring, contraindications, and appropriate TRT framing.
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Emerging pharmacotherapies for obesity: A systematic review
Broad context for new and established obesity-drug categories.
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Glucagon-like receptor agonists and next-generation incretin-based medications
Current review for incretin-based obesity medications and cardiometabolic effects.
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This creator is 103 weeks into TRT and introduced a carnivore diet protocol during this logged week, experiencing classic early keto-adaptation symptoms including fatigue and acute strength reduction at familiar training loads.
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This creator is 103 weeks into TRT and introduced a carnivore diet protocol during this logged week, experiencing classic early keto-adaptation symptoms including fatigue and acute strength reduction at familiar training loads. He lost approximately 3.8 lbs in one week, consistent with glycogen and water depletion rather than fat loss. No blood work, SHBG levels, or TRT dosing information is mentioned, making it impossible to assess how the dietary shift may be interacting with his hormone therapy.
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What it helps with
- This creator is 103 weeks into TRT and introduced a carnivore diet protocol during this logged week, experiencing classic early keto-adaptation symptoms including fatigue and acute strength reduction at familiar training loads. He lost approximately 3.8 lbs in one week, consistent with glycogen and water depletion rather than fat loss. No blood work, SHBG levels, or TRT dosing information is mentioned, making it impossible to assess how the dietary shift may be interacting with his hormone therapy.
- Glycogen depletion during the first 2 to 4 days of carbohydrate restriction is well-established and directly explains his reported strength and energy drop at the gym (Volek et al., 2015, Nutrition & Metabolism).
- Short-term weight loss in the first week of carnivore or keto is predominantly water and glycogen, not fat. Glycogen binds approximately 3 to 4 grams of water per gram stored.
What it may miss
- It may not cover eligibility, contraindications, medication interactions, lab history, or dose escalation.
- Compound access, legal status, and product quality still need a separate safety check.
- Social video captions rarely show the full evidence base behind a claim.
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Start provider reviewWhat You'll Learn
- Glycogen depletion during the first 2 to 4 days of carbohydrate restriction is well-established and directly explains his reported strength and energy drop at the gym (Volek et al., 2015, Nutrition & Metabolism).
- Short-term weight loss in the first week of carnivore or keto is predominantly water and glycogen, not fat. Glycogen binds approximately 3 to 4 grams of water per gram stored.
- Dietary fat intake influences testosterone bioavailability and SHBG levels. Men on TRT making significant dietary changes should review bloodwork including free testosterone and lipid panels with their prescribing clinician (Hamalainen et al., 1984, Hormone and Metabolic Research).
- Using an AI chatbot to design a diet while on TRT and logging nearly 28 miles of cardio per week is not equivalent to working with a registered dietitian who can account for labs, hormone protocols, and training load.
- Adherence is the number one predictor of dietary outcomes. His cycle of stopping, restarting, and ultimately quitting carnivore is consistent with Dansinger et al. (2005, JAMA), which found adherence rate outweighed diet type in determining results.
- High-intensity resistance training performance depends heavily on glycogen availability. Burke et al. (2017, Journal of Physiology) found performance impairment even after three weeks on ketogenic protocols in trained athletes, suggesting adaptation timelines vary significantly between individuals.
- Nothing in this video constitutes medical advice, and the creator makes no clinical claims. This is a personal log, and it should be evaluated as one.
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About the Creator
Lou · TikTok creator
6.1K views on this video
Documenting my journey on TRT. Week 103 update! Check back next week for the next update! #trt #testosteronebooster #fitnessjourney #menshealth #ComproDoPequeno
Sources & references
Citations extracted from our medical team's review. Click any citation to search PubMed.
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Not medical advice. This video was made by Lou, not by FormBlends. Our write-up above is an editorial review, not a medical recommendation. Talk to your doctor before making any decisions about medications or treatments.