💊 What Supplements Should I Take to Maintain My Weight (and Tighten Up Without Losing Muscle)?
- Dr Susan Baxter
- May 9, 2022
- 3 min read
Updated: Jul 7

Let’s start with this:
Supplements are not magic. They’re nutritional insurance.
They fill the gap between what you’re eating… and what your body actually needs.
If your food, sleep, movement, and stress hygiene aren’t on point?
Supplements won’t save you.
But if those foundations are dialed in (or at least trending upward), the right stack can support you—especially if:
You’re in a calorie deficit
You’re training hard and don’t want to lose muscle
You’ve got dietary limitations (e.g. vegan, dairy-free, low appetite)
Your environment lacks key minerals (e.g. NZ soil is low in selenium)
Here’s what’s worth considering if your goal is to maintain your weight, stay lean, and feel recovered—not ragged.
1.
Multivitamin
📌 Insurance policy for gaps in your diet
Most calorie-controlled diets are lower in micros. You’re eating less food = you’re getting fewer nutrients.
A high-quality multivitamin (ideally third-party tested) can help prevent performance dips and fatigue from hidden deficiencies.
2.
Whey Protein
📌 Lean mass maintenance without chewing another chicken breast
You need protein to preserve muscle, especially in a deficit.
Whey = fast-digesting, bioavailable, convenient.
How to use it:
Post-training with fruit or oats
In smoothies with spinach & berries
In oats for a high-protein breakfast
Baked into high-protein snacks if you’re getting bored
Pro tip: Look for low-carb, low-fat versions if your calories are tight.
3.
Casein Protein
📌 Slow drip muscle support overnight
Muscle breakdown and recovery are a 24-hour process. Casein digests slowly, feeding your body aminos while you sleep.
Ideal if:
You train at night
You wake up sore
You’re trying to reduce muscle loss during a diet
Mix with Greek yogurt or make a protein pudding for dessert—yes, really.
4.
HMB (Beta-hydroxy-beta-methylbutyrate)
📌 Anti-catabolic support without extra calories
HMB is a metabolite of leucine (a key amino acid in muscle maintenance).
It helps:
Reduce muscle breakdown
Preserve lean mass during cutting
Support recovery, especially for beginners or those returning from a break
Great if your protein is already decent but you want added insurance without more food.
5.
Beta-Alanine
📌 Performance enhancer = train longer, harder, better
Beta-alanine increases carnosine in muscles, which helps buffer acid and delay fatigue.
Translation:
You can push through more reps, longer intervals, or higher effort before the burn stops you.
Best used:
For HIIT, CrossFit, or high-intensity resistance work
In a loading dose (2–5g/day for 4 weeks), then maintained
(Note: it can cause harmless tingling—completely normal.)
6.
ZMA (Zinc + Magnesium Aspartate + B6)
📌 Recovery, sleep, and hormone support
Sleep = recovery.
And micronutrient deficiencies (especially magnesium) = restless sleep and lower testosterone.
ZMA helps with:
Deep, restorative sleep
Muscle repair overnight
Hormonal balance (especially for active men and women)
Take it before bed, away from calcium-containing foods.
Bonus: 🧠
What about Omegas, B12, or Creatine?
Omegas – If you’re vegan or don’t eat fatty fish, consider an algae-based DHA/EPA source. Inflammation, skin, cognition—all benefit.
B12 – If you’re vegan/vegetarian or low energy, test your levels. Oral B12 (methylcobalamin) can help restore mood, focus, and metabolism.
Creatine – Not essential for weight maintenance, but worth considering for strength, cognitive support, and muscle fullness. Yes, even if you’re not bulking.
🚨 Final Notes
❌ Don’t supplement out of fear.
✅ Supplement with strategy.
The best supplements:
Fill a gap (from food, training stress, or lifestyle limits)
Support a specific outcome (not just “health”)
Let you train, recover, and maintain lean mass with less friction
TL;DR Supplement Stack for Weight Maintenance + Tightening:
Goal | Supplement | Why |
Nutrient support | Multivitamin | Fill gaps in low-calorie diets |
Muscle retention | Whey, Casein, HMB | Protein support + anti-catabolic |
Workout performance | Beta-Alanine | Delay fatigue, go longer |
Recovery & Sleep | ZMA | Deeper sleep = better recovery |
Bonus | Omegas, Creatine, B12 | Based on diet & personal need |
Do you have other recommendations to maintain weight? Message us and let us know!