Many people abide by this method because you need stomach acid to digest proteins, so in theory, taking collagen on an empty stomach ensures you will be able to better break down the collagen. However, you do not need to take collagen on an empty stomach to obtain the benefits.
It does not matter if you take collagen on an empty stomach or with a meal. Collagen peptides are absorbed through the intestines and then into the bloodstream regardless of when you take them. The important thing is that you are opting for collagen in its hydrolyzed form.
What is the best time to take collagen? If you're having digestive or gut issues then the best time to take collagen is first thing in the morning on an empty stomach or with your meals. For restful sleep, the best time to take collagen is before bed for improved sleep quality.
Collagen supplements can be taken at any time of the day with or without food.
As such, no matter your goal for using collagen, it will take at least 8 weeks to experience noticeable results ( 6 ). Most studies use a minimum of 8 weeks to assess collagen's effects on skin health and joint pain relief, but other studies use longer periods, such as 12 months, for bone health ( 9 , 14 , 22 ).
You can consume collagen by either eating it naturally through whole foods (e.g. bone broth, organ meats, etc.) or choosing hydrolyzed peptides in supplement form. Collagen has also been linked to skincare products and injections, but neither helps your body's collagen production — collagen protein must be ingested.
Studies recommend that adults consume between 2.5 to 15 grams of collagen per day to enjoy its health benefits. You can consume collagen powder by mixing it into smoothies, shakes, baked goods, or even your coffee or tea.
"It's worth remembering that coffee doesn't destroy collagen, it inhibits its production," says nutritional therapist at the Pulse Light Clinic, Lisa Borg.
When you have too much collagen, your skin can stretch, thicken, and harden. It also can cause damage to internal organs, such as the heart, lungs, and kidneys.
Some studies show that taking collagen supplements for several months can improve skin elasticity, (i.e., wrinkles and roughness) as well as signs of aging. Others have shown that consuming collagen can increase density in bones weakened with age and can improve joint, back and knee pain.
In general, most people will see a benefit after taking 10 grams of collagen peptides daily for 4-12 weeks. However, keep in mind that this will vary from person to person. Most importantly, ensure to eat a healthy, balanced diet, rich in whole foods to reap the most benefit from your collagen supplement.
Those who took collagen peptides experienced a greater improvement in muscle mass and strength. They also lost more fat mass than the placebo group. These results suggest that collagen supplements can support loss of body fat by enhancing the effects of weight training on muscle mass.
Collagen is generally considered to be a safe and nontoxic daily supplement for healthy individuals, and most people won't experience adverse side effects.
Can I take collagen and vitamin D together? Yes, you can take collagen and vitamin D together. Vitamin D helps your body absorb calcium, which is essential for bone health. Collagen also supports bone health by strengthening the connective tissues around your joints.
A further 2021 meta-analysis of randomised controlled trials concluded that ingestion of hydrolyzed collagen for 3 months is effective at reducing skin ageing, as it reduces wrinkles and improves skin elasticity and hydration (4).
Vital Proteins® Original Collagen Peptides
Jen Says: "My go-to collagen routine is adding Vital Proteins® Collagen Peptides ($27; shop now) in my morning cup of coffee or smoothie – so easy to use."
Marine collagen is better for the human body than bovine collagen for various reasons, but chief among these is its unique structure. Marine collagen tends to contain more amino acids and glycine than bovine varieties, which are essential for skin health.
After daily collagen supplementation for a few weeks, you will typically start to notice a few things: hair growth, skin hydration and skin moisture, improvement in joint health and skin health, lessening of fine lines, and other possible anti-aging improvements.
"Collagen is what keeps our skin from sagging, giving us that plump, youthful look," says dermatologist Dr. Ohara Aivaz. Your body naturally makes collagen, but this production decreases with age.
If you take too much collagen, it can throw off the balance of amino acids in your body and lead to side effects such as headaches, digestive issues, and fatigue. Additionally, some people may be allergic to collagen or have an intolerance to it.