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Nutrition 101

What actually fuels you

Plain-English education on macros, micros, hydration, and gut health, the foundation under every peptide, hormone, and GLP-1 protocol.

Fat loss, hormones, metabolism, energy, sleep, and mood all trace back to the same handful of nutrients doing (or not doing) their job. This page walks through macronutrients, micronutrients, hydration, and gut health so you understand what's happening in your body.

Educational only, not medical advice, not a prescription. Nutrition targets vary by individual.

The Big Three

Macronutrients

Macros are the nutrients your body needs in large amounts, measured in grams, not milligrams. They're the calories on the label. Tap "Show more" on any card for targets + food sources.

Protein, The build + repair nutrient
The build + repair nutrient

Protein

What it does · Broken down into amino acids that rebuild muscle, skin, hair, enzymes, hormones, and immune cells. It's also the most satiating macro, protein blunts hunger and stabilizes energy.

Carbohydrates, Your fastest fuel
Your fastest fuel

Carbohydrates

What it does · Break down into glucose, the preferred fuel for your brain, muscles, and thyroid. Fiber (a carb) also feeds your gut microbiome and moves things through your GI tract.

Fat, Hormone raw material
Hormone raw material

Fat

What it does · Provides essential fatty acids (omega-3, omega-6), transports fat-soluble vitamins (A, D, E, K), and is the literal building block for estrogen, progesterone, and testosterone.

The Details

Micronutrients

Micros are the vitamins and minerals your body needs in small amounts, but without them, nothing else works. Tap any tile to dig into what it actually does.

The sunshine hormone

Vitamin D

What it does · Acts more like a hormone than a vitamin. Regulates immune function, mood, bone density, testosterone in men, and insulin sensitivity.

Why it matters · Most adults in the U.S. are deficient. Low D is tied to fatigue, low mood, and stalled fat loss.

Water + Salt

Hydration

Ice water with lemon, cucumber, and electrolytes
Why it matters

Every cell runs on water

Every cell reaction, every hormone signal, and every digestive process runs on water. Even 2% dehydration measurably drops strength, focus, and mood. On a GLP-1, hydration is non-negotiable, the medication slows gastric emptying and blunts your thirst cue, so you have to schedule it.

Baseline
~0.5 to 0.7 oz per lb of bodyweight per day.
Electrolytes matter
Sodium, potassium, magnesium. Plain water alone can dilute you.
Front-load
16 to 20 oz within an hour of waking clears overnight dehydration.
Signal check
Pale yellow urine, no afternoon headache, no muscle cramps.
The Ultimate Electrolyte

Hydra+ by Rehab® Supps Lab

If you're drinking electrolytes, drink the ones we actually formulated. Hydra+ is a zero-sugar, clinically-dosed hydration stack built for hard training, low-carb diets, GLP-1 users, and anyone tired of overpriced sugar water.

Grape Popsicle · Watermelon Slushee

Hydra+ Electrolytes

Sugar-free · All natural · 10 calories · Sweetened with stevia, colored with beet root & spirulina. No dyes, no filler, no BS.

Hydra+ Electrolytes, grape popsicle flavor with a splash of grape juiceHydra+ Electrolytes, watermelon slushee flavor with a splash of watermelon juice
Shop Hydra+ ↗
What's in every scoop
  • Sodium, 500 mgFrom Pink Himalayan salt. Replaces what you sweat out; prevents cramps, fatigue, dizziness.
  • Magnesium, 200 mgBisglycinate + citrate + oxide blend. Muscle relaxation, sleep, and energy metabolism.
  • Chloride, 919 mgPartners with sodium for true cellular fluid balance. Almost nobody else includes it.
  • Potassium, 400 mgMuscle contractions and hydration balance, dosed so it doesn't wreck your gut.
  • Calcium, 100 mgNerve impulses + hydration synergy. Missing from almost every other stick pack.
  • Vitamin C, 100 mgAntioxidant + immune support during heat, exertion, or stress.
  • Zinc, 3 mg (chelated)Immune, skin, and tissue repair, chelated form for max absorption.
  • L-Theanine, 50 mgCalm, focused energy. Nervous-system smoothing without caffeine.
  • ConcenTrace®, 100 mg72+ ionic trace minerals for deep cellular hydration.

How Hydra+ compares

Most hydration drinks are underdosed, over-sugared, or missing half the minerals your body actually needs. Here's the honest side-by-side per serving.

NutrientHydra+Liquid I.V.Ultima
Sodium500 mg (Himalayan)500 mg55 mg
Potassium400 mg370 mg250 mg
Magnesium200 mg (3 forms)0 mg100 mg
Calcium100 mg0 mg47 mg
Chloride919 mgNot listed78 mg
Vitamin C100 mg62 mg47 mg
Zinc3 mg chelated0 mg1 mg
Added sugar0 g11 g0 g
L-Theanine50 mgNoneNone
ConcenTrace® trace minerals100 mgNoneNone

Comparison values sourced from each brand's published nutrition facts. Dosages per single serving.

Your Second Brain

Gut Health

The Gut-Brain Axis

More than digestion

About 90% of your serotonin is made in the gut. Chronic bloating, brain fog, and mood swings are often a gut issue before they're a brain issue. BPC-157 is one peptide our providers use here.

Fermented foods: kimchi, sauerkraut, kombucha, kefir
Fiber

Feed the good bugs

Soluble + insoluble fiber feed a diverse microbiome, produce short-chain fatty acids that lower inflammation, and keep digestion regular. Target 25 to 35 g/day from vegetables, fruit, legumes, and whole grains.

Fermented Foods

Living bacteria

Yogurt, kefir, sauerkraut, kimchi, and miso deliver live cultures that support microbiome diversity, which shows up as better mood, immunity, and even skin.

The Bottom Line

Nutrition first, everything else after

Peptides, hormones, and GLP-1s all work faster and better when your nutrition foundation is solid. If protein is low, sleep is broken, and hydration is nonexistent, no protocol will save you.

Get the basics right first. Then layer in optimization tools on top of a body that can actually use them.

Questions? Text us.

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