Walk into any supplement store and you’ll see hundreds of products promising more muscle, faster fat loss and better health. Walk out with all of them and you’ll mostly have an expensive collection of things your body doesn’t need. So are supplements worth it? A few genuinely are. Most aren’t. This guide covers the ones our trainers actually recommend to clients here in Winnipeg — creatine, protein powder and vitamin D — plus honest takes on electrolytes, kombucha, multivitamins, intermittent fasting and weight-loss medications like Ozempic. No hype, no affiliate links, just what the evidence supports.
Food First: The Rule That Comes Before Any Supplement
Before we talk about a single product, the ground rule: supplements supplement. They fill specific gaps — they don’t replace a solid diet, and they don’t rescue a poor one.
Vitamins are a good example. Your body needs them to support normal metabolism, and because it can’t produce most of them, they have to come from what you eat. Here’s the part the marketing leaves out: a reasonably balanced diet already provides virtually all the vitamins a healthy adult needs. Manitoba health researchers have pointed out that most of the water-soluble vitamins people take in pill form are simply excreted in urine. That daily multivitamin, for most people, is expensive pee.
There are real exceptions. People on restricted diets — vegans, for example — need to plan carefully or supplement nutrients like B12. People with conditions that impair nutrient absorption may need targeted supplementation under medical guidance. And anyone living through a Canadian winter has a very legitimate reason to supplement vitamin D, which we’ll get to shortly.
If your baseline diet needs work, fix that first — it will do more for your results than any capsule. Our customized meal plans are built exactly for this, and our no-nonsense nutrition guide covers the fundamentals in depth.
Are Supplements Worth It? The Three That Usually Are
When clients ask us whether supplements are worth the money, our answer is a short list. These three have strong evidence behind them, they’re inexpensive, and they solve problems that are hard to solve with food alone.
Creatine
Creatine is the most-studied sports supplement in existence, and one of the very few that clearly works. It helps your muscle cells regenerate energy faster during short, intense efforts, which over time supports better performance in the gym — more quality reps, better recovery between sets — and, combined with training, greater gains in strength and muscle mass. Research is also exploring possible benefits for brain health and neurological conditions, though that evidence is still emerging and creatine should never be treated as a treatment for any disease.
A few practical tips for using it well:
- Talk to your physician first, especially if you have kidney concerns or take medication.
- Follow the label — a standard dose is around 3–5 grams of creatine monohydrate per day. No fancy formulas needed.
- Take it daily, not just on training days. It works by saturating your muscles over weeks, not by giving you a boost on the spot.
- Actually train. Creatine amplifies the work you do; it does nothing on its own. If you want a program worth amplifying, see our strength training guide.
Protein Powder
Protein powder isn’t magic — it’s just convenient food. A shake is a cheap, fast way to hit your daily protein target when whole-food meals aren’t practical, and there’s a flavour and format (whey, vegan blends and more) for almost everyone.
The most common question we hear: when should I drink my protein shake? The honest answer is that timing matters far less than people think. Research consistently shows your total daily protein intake is what drives muscle growth and recovery — not whether the shake lands 20 minutes after your last set. A practical target for people who train regularly is roughly 0.7–1 gram of protein per pound of body weight per day, spread across your meals. If a post-workout shake helps you hit that number, great. If it’s easier at breakfast, that’s fine too.
Vitamin D
This is the one supplement with a specifically Winnipeg-sized case behind it. Your body makes vitamin D from sunlight on bare skin — which works beautifully in July and not at all in January, when you’re covered head to toe and daylight is short. Most of us run our vitamin D stores down over a Manitoba winter, so a supplement during the darker months is a genuinely good idea for many people.
Adequate vitamin D supports calcium absorption and bone health, plays a role in normal immune function, and low levels have been linked to low mood — one more reason winter can feel heavier than it should. You can also boost intake through food and habits:
- Get outside in sunlight when the season allows.
- Eat fatty fish and seafood regularly.
- Include egg yolks and mushrooms in your diet.
- Choose fortified foods like milk, some cereals and orange juice.
- Use a vitamin D supplement (drops or capsules) through winter — ask your doctor or pharmacist about the right dose for you.
Electrolytes, Kombucha and Other Popular Extras
These aren’t scams, but they’re also not essentials. Here’s where they fit.
Electrolyte Drinks
Electrolytes — sodium, potassium, magnesium and friends — help regulate fluid balance, blood pressure and the muscle contractions that keep you moving (your heart included). But a normal diet covers your electrolyte needs in most circumstances. Where the drinks and powders earn their keep is convenience during long, sweaty sessions: extended cardio, hot-weather training, hockey tournaments, or any workout over an hour where you’re losing a lot of fluid. For a typical 45-minute training session, water is enough. If you do buy electrolyte products, compare labels — some are mostly sugar with a premium price tag.
Kombucha
Kombucha is a fermented tea that provides probiotics, which may support a healthy gut microbiome and digestion, and it contains antioxidant compounds from the tea itself. If you enjoy it, it’s a perfectly reasonable swap for pop. What it is not is medicine — claims that kombucha fights cancer or prevents heart disease run far ahead of the evidence. Treat it as a pleasant beverage with possible gut-health perks, watch the sugar content between brands, and keep your expectations in check.
Diets and Drugs Are Not Supplements
Two topics come up constantly in supplement conversations even though neither is really a supplement: intermittent fasting and Ozempic. Both deserve straight answers.
Intermittent Fasting
Intermittent fasting — most commonly the 16:8 pattern, where you eat within an 8-hour window and fast for 16 — can absolutely help with weight loss. But it works for the same unglamorous reason every diet works: it helps some people eat fewer calories. There’s no metabolic magic in the clock.
The pros: it’s simple, it kills late-night snacking, and the 16:8 version is realistic for many people. The cons: aggressive protocols can drain your energy and hurt your training, eating windows make social meals awkward, and rigid rules can teach you to ignore your body’s hunger signals. Fasting is not appropriate for insulin-dependent diabetics, children, elderly adults, anyone pregnant or breastfeeding, or anyone with a history of disordered eating. Choose an eating pattern because it fits your life and goals — not because it worked for a friend. Our weight loss guide digs into what actually drives lasting results.
Ozempic and Weight-Loss Medications
Ozempic (semaglutide) was developed to manage blood sugar in type 2 diabetes, and it does produce significant weight loss for many people by increasing feelings of fullness and supporting insulin regulation. It is real, prescription-strength medicine — which is exactly why it doesn’t belong in a supplement conversation. It carries meaningful potential side effects, including nausea, vomiting, constipation, diarrhea and rarer but serious risks such as pancreatitis, and it requires a doctor’s assessment to determine whether you’re an appropriate candidate.
Our perspective as trainers: whatever tool you use to lose weight, the habits that keep it off are the same — regular strength training, adequate protein, and an eating pattern you can sustain. Medication without those habits tends to be a temporary fix. Start by asking why you want the change, talk honestly with your physician, and build the foundation either way.
How to Decide If a Supplement Is Worth Your Money
A quick filter you can run on any product before you buy:
- Is there a gap? Supplements fix deficiencies and practical problems. If your diet already covers it, the product can’t help you.
- Is there evidence? Creatine, protein and vitamin D have decades of research. A proprietary “fat-burning blend” has a marketing budget.
- Is it tested? Look for third-party certification (NSF, Informed Sport) so the label matches the contents.
- Would the money do more elsewhere? Fifty dollars a month buys a lot of groceries — or a chunk of coaching that improves everything at once.
- Have you asked a professional? Your doctor or pharmacist should know about anything you take regularly, especially alongside medications.
If you’d rather not sort this out alone, that’s literally our job. Our certified trainers build training and nutrition around your goals — 1-on-1 in our Sargent Avenue gym, in your home, or online — and we’ll tell you plainly which supplements make sense for you and which are a waste. Book a free consultation and bring your questions.
Frequently Asked Questions
Are supplements worth it if I eat a healthy diet?
Mostly no — a balanced diet covers nearly all vitamin and mineral needs for healthy adults. The main exceptions are vitamin D through Canadian winters, creatine and protein powder if you train hard and struggle to hit protein targets, and specific nutrients for restricted diets like veganism. Check with your doctor before adding anything.
Is creatine safe to take every day?
For healthy adults, daily creatine monohydrate at standard doses (3–5 grams) is well studied and considered safe, and daily use is actually how it works — your muscles saturate over several weeks. People with kidney conditions or on medication should talk to their physician first.
Do I need a protein shake right after my workout?
No. Research shows your total daily protein intake matters far more than timing. Aim for roughly 0.7–1 gram per pound of body weight spread across the day; use a shake whenever it’s most convenient for you.
Should everyone in Winnipeg take vitamin D in winter?
Many Manitobans run low on vitamin D between roughly October and April because winter sun exposure isn’t enough for the body to produce it. A winter supplement is a reasonable, low-cost precaution for most adults — confirm the right dose with your doctor or pharmacist, especially if you have any health conditions.
Alistair Hopper is the founder of Flex Fitness Winnipeg and a certified personal trainer with over 18 years of experience - in-gym, in-home and online, including specialty programs for Parkinson's disease and dementia. Featured on CTV Living Well.




