Many people focus only on eating healthier, but even a balanced diet may not always provide optimal amounts of every nutrient. While supplements should never replace a healthy diet, they can help fill nutritional gaps when used appropriately.
Here are three supplements that are popular for supporting overall wellness, along with when I prefer to take them and why.
Note: Supplements are not intended to diagnose, treat, cure, or prevent disease. If you have a medical condition, take medications, or are pregnant, consult a healthcare professional before starting any supplement.
1. L-Cystine
What Is L-Cystine?
L-Cystine is an amino acid made from two cysteine molecules joined together. It is naturally found in foods such as poultry, eggs, dairy products, and legumes.
It is a building block for keratin, the protein that makes up your hair and nails.
Potential Benefits
✔ Supports healthy hair
✔ Supports strong nails
✔ Helps build keratin
✔ Provides sulfur, an important structural mineral for connective tissues
L-Cystine also contributes to the body’s pool of cysteine, which is involved in producing glutathione, one of the body’s natural antioxidants.
When to Take It
Many people take L-Cystine:
- In the morning
- With breakfast
- Or between meals, depending on the product directions
Consistency is generally more important than the exact time of day.
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2. Magnesium Bisglycinate
Why Magnesium Matters
Magnesium is involved in more than 300 enzymatic reactions throughout the body.
Unfortunately, many people do not meet the recommended intake through diet alone.
Magnesium bisglycinate is a form in which magnesium is bound to the amino acid glycine. It is often chosen because it is generally well tolerated.
Potential Benefits
✔ Supports normal muscle function
✔ Supports normal nerve function
✔ Helps maintain healthy bones
✔ Helps reduce tiredness and fatigue when magnesium intake is inadequate
✔ Supports normal energy metabolism
When to Take It
Many people prefer taking magnesium bisglycinate:
- In the evening
- After dinner
- Or 30–60 minutes before bed
Some people find it fits well into their nighttime routine.
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3. Zinc + Copper
Why Combine Zinc and Copper?
Zinc and copper are essential minerals.
Taking high amounts of zinc over long periods may reduce copper absorption, which is why some supplements include both minerals in balanced amounts.
Zinc Supports
✔ Normal immune function
✔ Healthy skin
✔ Normal wound healing
✔ Protein synthesis
✔ Normal DNA synthesis
Copper Supports
✔ Normal connective tissue formation
✔ Iron transport in the body
✔ Energy production
✔ Normal nervous system function
Copper also plays a role in normal hair pigmentation.
When to Take It
Many people take zinc and copper:
- With a meal
- At lunch or dinner
Taking zinc with food may help reduce stomach discomfort in some people.
Can You Take All Three Together?
For many healthy adults, these supplements can often be taken on the same day.
A common routine is:
Morning
✅ L-Cystine
Dinner
✅ Zinc + Copper
Before Bed
✅ Magnesium Bisglycinate
Splitting them throughout the day may fit more comfortably into a routine.
Always follow the dosage on the product label or the advice of your healthcare provider.
Lifestyle Still Comes First
Supplements work best alongside healthy habits.
Aim for:
🥩 High-quality protein
🥔 Whole-food carbohydrates
🥦 Plenty of vegetables
🍊 Vitamin C-rich fruits
💧 Good hydration
😴 7–9 hours of sleep
🏃 Regular physical activity
Final Thoughts
L-Cystine, Magnesium Bisglycinate, and Zinc + Copper each play different roles in supporting normal body functions.
- L-Cystine helps provide building blocks for keratin.
- Magnesium Bisglycinate supports muscles, nerves, bones, and energy metabolism.
- Zinc + Copper help support immune function, connective tissue, skin health, and many important enzymatic processes.
Remember that supplements are designed to complement a healthy lifestyle—not replace a nutritious diet. A balanced diet, regular exercise, quality sleep, and stress management remain the foundation of long-term health.
